SEPA_Checklist_Meadowdale_11-19-2018EdmondsSEPA Environmental checklist (WAC 197-11-960) July 2016 Page 1 of 28
A.BACKGROUND [help]
1.Name of proposed project, if applicable: [help]
Meadowdale Beach Park and Estuary Restoration Project
2.Name of applicant: [help]
Snohomish County Parks and Recreation
3.Address and phone number of applicant and contact person: [help]
Logan Daniels
6705 Puget Park Drive
Snohomish, Washington 98296
(425) 388-6619
4.Date checklist prepared: [help]
January 22, 2018
5.Agency requesting checklist: [help]
Snohomish County
6.Proposed timing or schedule (including phasing, if applicable): [help]
The project is anticipated to begin in July 2019 and be complete in December 2020.
7.Do you have any plans for future additions, expansion, or further activity related to orconnected with this proposal? If yes, explain. [help]
There are no plans for future additions, expansions, or further activity related to this project.
8.List any environmental information you know about that has been prepared, or will beprepared, directly related to this proposal. [help]
The following environmental information has been prepared for the project:
•Wetland, Stream, and Marine Delineation (Anchor QEA 2017)
•Lund’s Gulch Creek Fish Habitat Assessment (Confluence 2016)
•Eelgrass Survey of Meadowdale Beach Park (Confluence 2017)
•Biological Assessment (Anchor QEA 2018a)
•Critical Areas Report (Anchor QEA 2018b)
•Cultural Resource Assessment (ICF 2018)
•Phase 1 Environmental Site Assessment (Shannon & Wilson 2015)
•Geotechnical Report – Geologically Hazardous Areas Assessment (Shannon & Wilson 2018a)
•Geotechnical Engineering Report (Shannon & Wilson 2018b)
This document prepared for and submitted to Snohomish County. Per DRC meeting with City of Edmonds in
August 2017, the City indicated they would likely adopt Snohomish County SEPA decision.
SEPA ENVIRONMENTAL CHECKLIST
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 2 of 28
9.Do you know whether applications are pending for governmental approvals of otherproposals directly affecting the property covered by your proposal? If yes, explain. [help]
An adjacent property owner north of the park (parcels 00500900001601 and 00500900001602;
15120 73rd Avenue West) has submitted a right-of-way vacation request to Snohomish County Public
Works Road Right of Way, for a portion of 73rd Avenue West.
10.List any government approvals or permits that will be needed for your proposal, if known.[help]
The following permits and regulatory approvals are being requested for the project:
•Clean Water Act, Section 404 – U.S. Army Corps of Engineers (Corps)
•Rivers and Harbors Act, Section 10/Nationwide Permit 27 – Corps
•National Historic Preservation Act, Section 106 Consultation – Corps and Washington
Department of Archaeology and Historic Preservation
•Endangered Species Act, Section 7 Consultation – National Oceanic and Atmospheric
Administration (NOAA) Fisheries and U.S. Fish and Wildlife Service (USFWS)
•Magnuson-Stevens Fishery Conservation and Management Act Essential Fish Habitat
Consultation – NOAA Fisheries
•Clean Water Act, Section 401 – Washington Department of Ecology (Ecology)
•Coastal Zone Management Act consistency determination – Ecology
•Hydraulic Project Approval permit – Washington Department of Fish and Wildlife (WDFW)
•Railroad Safety Crossing Certification – Washington Utilities and Transportation Commission
•Critical Areas Review – Snohomish County and City of Edmonds
•Shoreline Substantial Development Permits – Snohomish County and City of Edmonds
•Shoreline Conditional Use Permit – Snohomish County
•Flood Hazard Permit – Snohomish County
•Land Disturbing Activity Permit – Snohomish County
•Construction and Maintenance Agreement” with BNSF
•Building Permits – Snohomish County
•Right-of-Way Use Permits – Snohomish County and City of Edmonds
•Grading, Fill, and Excavation Permit – City of Edmonds
11.Give brief, complete description of your proposal, including the proposed uses and the sizeof the project and site. There are several questions later in this checklist that ask you to
describe certain aspects of your proposal. You do not need to repeat those answers on thispage. (Lead agencies may modify this form to include additional specific information onproject description.) [help]
PROJECT OVERVIEWThe 108-acre Meadowdale Beach County Park is located on the northern end of Brown’s Bay on Puget
Sound and extends from tidelands up to the rim of Lund’s Gulch, a deeply incised forested ravine
(Figure 1). The railroad embankment parallels the shoreline and separates the tidelands from the park’s
lawn area at the bottom of the ravine (Figure 2). The proposed Meadowdale Beach Park and Estuary
Restoration Project is intended to address several interrelated issues associated with sediment
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 3 of 28
deposition at the current box culvert for Lund’s Gulch Creek under the railroad berm. The project area
encompasses approximately 10 acres of lower Lund’s Gulch Creek, the lawn area, the access road, and
tideland area. The project would include replacement of the box culvert with a bridge, restoration and
enhancement of the stream and estuary, improvements to park facilities, and repaving of the access
road. Existing conditions at the site are detailed on Figures 3a through 3c. The proposed project site plan
is shown on Figure 4 and described in the sections below, with detailed project elements depicted on
Figures 5 through 8.
Railroad Bridge, Estuary, and Beach
The existing box culvert would be replaced with a five-span railroad bridge to improve public safety and
Americans with Disabilities Act (ADA) access, address flooding and maintenance issues associated with
sediment deposition, and improve habitat for salmon and other fish and wildlife species. The proposed
changes would convert much of an existing lawn area to a restored pocket estuary and riparian habitat,
and provide habitat improvements farther upstream in and along Lund’s Gulch Creek. A portion of the
beach area would be temporarily graded to support railroad bridge construction and final graded to
support the widened creek mouth at the railroad bridge, which would allow for continued development
of natural spit/barrier beach pocket estuary habitat. Specific project actions in this area of the park are
summarized below.
Railroad Bridge
•Remove the undersized 6-foot-wide box culvert under the BNSF railroad
•Remove approximately 130 linear feet (2,000 cubic yards [cy]) of the existing hard armored
railroad embankment, along with 10 native trees and shrub vegetation on the railroad
embankment and within the 100-foot-wide railroad right-of-way
•Construct a new five-span, 128-linear-foot-long rail bridge
•Construct a new ADA-compliant pathway under the southern section of the bridge linking the
park and beach
•Replace existing railroad safety fencing with new chain link fencing that meets BNSF safety
requirements
•Excavate the existing railroad embankment to create a 90-foot-wide channel to dissipate high
flood flows, allow for natural creek meandering over time, restore natural sediment transport
processes, and restore a functioning pocket estuary
Pocket Estuary
•Place fill material east of the existing railroad embankment to create a temporary work platform
for use during construction (fill material unsuitable for creek/estuary restoration would be
removed following construction)
•Remove existing restroom enclosure and developed park features in the proposed estuary area,
including picnic tables, concrete pads, lawn and ornamental and invasive vegetation, as well as
approximately 40 native and non-native trees; reuse removed trees as large woody materials or
snag features within riparian planting areas, to support habitat enhancement
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 4 of 28
•Remove approximately 210 linear feet of rock bank armoring along the lowermost 300 feet of
Lund’s Gulch Creek
•Remove a portion of the loop asphalt path north of the proposed estuary to maximize estuary
riparian area restoration
•Excavate, grade, and contour the area east of the railroad embankment (approximately 17,000 cy)
to create riparian and pocket estuary habitat, including restored tidal marsh with a fringe of
freshwater emergent wetland to accommodate future sea level rise
•Create sufficient space and grades to allow Lund’s Gulch Creek to naturally meander and deposit
sediment in the restored estuary area on both sides of the railroad
Beach
•Place temporary fill material over a temporary geotextile on the beach west of the existing
railroad embankment to install a temporary work platform for use during construction (fill
material unsuitable for creek/estuary restoration would be removed following construction)
•Excavate, place sand, and grade beach to support the new park and habitat features, including
the widened creek mouth on the west side of tracks, and to restore beach habitat, including
sandy substrates
•Revegetate beach backshore with supratidal native vegetation in regraded areas
Park Uplands
Upland improvements to park and recreation facilities would focus on areas east and south of the
restored pocket estuary at lower Lund’s Gulch Creek. The existing pedestrian bridge near the ranger
residence would remain in place, and other pedestrian, recreational, and habitat features would be
improved to improve ADA access, provide a safer trail system, and reduce maintenance needs. Specific
project actions in the park uplands are summarized below.
•Install new restroom enclosure, foot wash, and drinking fountain near the existing picnic shelter,
which would be updated but remain in place
•Convert existing sand volleyball court to lawn and construct improvements to lawn, drainage,
and stormwater treatment
•Enhance riparian and instream habitat, including conifer planting and large woody material
placement
•Improve connectivity and habitat function of a previously constructed off-channel pond
•Realign existing pedestrian paths and construct ADA-compliant walkways
•Construct pedestrian connections, including installing a new pedestrian bridge across the
restored stream channel (downstream of the existing pedestrian bridge and upstream of the
restored estuary to replace the northern loop trail route affected by estuary restoration) and a
pedestrian connection from the picnic shelter to the new pedestrian bridge with a 40-foot
elevated path segment over an existing wetland area
•Create picnic viewpoints along the relocated loop path, providing visual access to the restoration
areas, and install new benches and four interpretive signs
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 5 of 28
•Regrade and repave the main paved pedestrian path on the south side of the lawn and restored
estuary to connect to the new beach path under the proposed railroad bridge
Road Access, Parking, and Drainage Improvements
The existing one-lane access road—for ADA and Park Ranger/service and emergency vehicle access
only—from 75th Place West to the lower park area would be improved to allow construction equipment
and material delivery and to ensure stability and ongoing ADA and Park Ranger access after the project
is complete. Existing stormwater facilities would be improved to meet current stormwater treatment
standards. Specific project actions related to the road, ADA parking, and drainage improvements are
summarized below.
•Regrade the lower portion of the limited-access road so the maximum longitudinal slope in all
areas would be reduced to 15% and install new asphalt paving
•Resurface the remaining length of the limited-access road after construction
•Reconfigure, resurface, and restripe the existing ADA-compliant lower parking area, including
potential addition of one ADA parking stall, to provide parking that meets current Snohomish
County Code (SCC) requirements and to ensure proper drainage
•Replace the paved swale along a portion of the existing roadway with a flexible liner and rock
(quarry spall) surfacing
•Stabilize the slope supporting the road on the downhill side with soil nails in selected areas, to
support anticipated construction traffic
•Construct catch basins from the bottom of the road through the ADA parking area to collect,
control, and convey stormwater runoff from impervious surfaces and construct a wet biofiltration
swale along the south side of the southern pedestrian path for stormwater treatment; the treated
swale flow would discharge to a catch basin and then be conveyed in a storm drain under the
path to a cobble-lined swale that would discharge to the restored estuary
CONSTRUCTION METHODS
To complete the work, the existing limited-access road into the park would be used for delivery of
construction equipment and materials and for removing excess excavated soils for the railroad bridge
replacement and estuary restoration. Rail access may be used for delivery of some equipment and
materials, pending additional discussions with BNSF and future contractor selection.
The general construction sequence is anticipated as follows:
1.Improve access road for construction
2.Deliver equipment and materials
3.Provide diversion for creek
4.Install temporary work pads adjacent to the railroad bridge
5.Replace culvert with railroad bridge
6.Remove temporary work pads
7.Excavate railroad berm under new bridge to proposed estuary subgrade, stockpile, and haul
8.Excavate area east and west of railroad berm for estuary, stockpile, and haul
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 6 of 28
9.Install new pedestrian bridge
10.Conduct final material placement, park restoration and improvements, and planting at beach
area, estuary, and riparian buffer
11.Install permanent stormwater/drainage and electric, water, and irrigation improvements
12.Finish access road repaving
In-water construction work would be planned to accommodate work windows for fish species as
determined by the Corps, WDFW, USFWS, and NOAA Fisheries. Work windows include July 1 to
October 1 for anadromous fish species and March to July for sand lance. Work adjacent to the beach
would be within the 100-year floodplain.
A more detailed description of specific construction methods is provided in Attachment 2.
12.Location of the proposal. Give sufficient information for a person to understand the preciselocation of your proposed project, including a street address, if any, and section, township,
and range, if known. If a proposal would occur over a range of area, provide the range orboundaries of the site(s). Provide a legal description, site plan, vicinity map, andtopographic map, if reasonably available. While you should submit any plans required by
the agency, you are not required to duplicate maps or detailed plans submitted with anypermit applications related to this checklist. [help]
The project is located at Meadowdale Beach Park, 15433 75th Place W, Edmonds, Washington 98026 (see
Figures 1 and 2). It is located in Township 27 North, Range 4 East, Section 5. The park, totaling 108 acres,
extends from the rim of Lund’s Gulch down to tidelands at the northern end of Browns Bay on Puget
Sound. The project site encompasses the lower portion of the park. The majority of the park, including
the tidelands, is located within unincorporated Snohomish County. Approximately 23 acres of the
southern portion of the park area, landward of the railroad embankment, are within the northern
boundary of Edmonds City Limits. The section of railroad affected by this project lies between BNSF-
designated mileposts 21.7 and 21.8 of the Scenic Subdivision Line Segment 50.
B.ENVIRONMENTAL ELEMENTS [help]
1.Earth [help]
a.General description of the site: [help]
(circle one): Flat, rolling, hilly, steep slopes, mountainous, other _____________
The topography of the project area ranges from close to sea level in the relatively flat lower park areas,
to very steep forested slopes as the park extends to the north, south, and east. Slopes in the project area
range from 0 to 70%, according to the U.S. Department of Agriculture soil data (USDA 2017). The
majority of the slopes along the north and south valley walls are 3 Horizontal to 1 Vertical (3H:1V) or
steeper; however, the valley bottom near the creek is relatively flat. The existing limited access road to
the lower park is approximately 16% in its steepest section.
b.What is the steepest slope on the site (approximate percent slope)? [help]
The steepest slope on the site is approximately 70%.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 7 of 28
c.What general types of soils are found on the site (for example, clay, sand, gravel, peat,muck)? If you know the classification of agricultural soils, specify them and note anyagricultural land of long-term commercial significance and whether the proposal results inremoving any of these soils. [help]
The property does not contain agricultural land of long-term commercial significance. Based on geologic
maps of the area (Minard 1982) and conditions observed during project subsurface explorations
(Shannon & Wilson 2018b), the project site contains the following geologic units and subsurface
conditions:
•Fill (Hf): Fill represents imported soil and other materials or otherwise modified land. This fill is
similar to the native material, but less dense and likely associated with road and shoulder fill.
Within select areas the fill consists of loose to medium dense silt; silty sand; and sand with gravel,
organics, wood, and glass refuse in the upper 4.5 feet. Other areas included gravel to silty gravel
with sand and cobbles in fill to about 6 feet deep.
•Alluvium/Colluvium (Ha/Hc): Alluvium and Colluvium is composed of sand and gravel with silt
and clay pockets. These units are typically designated together and reflect a complex
depositional environment – sediments deposited by landslides of the valley walls (colluvium)
were intermixed with alluvium and reworked by streams in the valley bottom.
•Whidbey Formation (Qpnf and Qpnl): The Whidbey Formation represents sediment deposited
on the land surface between glacial periods. These sediments were overridden by at least glacial
advances and consolidated to a very dense or hard state. The Qpnf component of the Whidbey
Formation represents sediments deposited in a fluvial environment and generally consists of very
dense, fine silty sand with a few silt interbeds. Qpnf also contains trace gravel, silt and sand
seams, and organics and fines are nonplastic to low plasticity. The Qpnl component of the
Whidbey Formation represents sediments deposited in a lake environment. Qpnl consists of hard
silt to sandy silt, with sand laminations. Fines in Qpnl have low plasticity or are nonplastic.
d.Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe. [help]
Most of the site is defined as a Landslide Hazard Area per SCC 30.91L.040 and Edmonds Community
Development Code (ECDC 23.80) and there is a history of landslides and unstable soils within the park.
Further details regarding the geologic hazards on the site are provided in the Geologically Hazardous
Areas memorandum (Shannon & Wilson 2018a), and the existing geologic hazards conditions are shown
on Figure 12.
e.Describe the purpose, type, total area, and approximate quantities and total affected areaof any filling, excavation, and grading proposed. Indicate source of fill. [help]
The majority of earthwork would involve grading and excavation to create estuarine and freshwater
wetlands. A small portion of the fill and grading would occur below the ordinary high water mark
(OHWM) of Lund’s Gulch Creek or mean higher high water (MHHW) of Puget Sound (see Table 1 under
Section 3, Water, for these details); this filling would occur in the creek bed and near the shoreline for the
purposes of aquatic habitat enhancement with approved materials (i.e., habitat gravels). All fill material
would be clean and sourced from approved borrow facilities. Fill in upland areas for the project would
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 8 of 28
place more than 4,200 cy of imported and salvaged materials. Temporary fill would also be required to
establish temporary work pads, consisting of quarry spalls capped with crushed surfacing base course,
which would likely be required on both the beach and lawn sides of the railroad tracks. See Attachment 2
for details of temporary work areas. Temporary fill would be removed after use and temporary work
areas would be regraded and restored.
Total upland (above OHWM and MHHW) excavation for the Project would remove approximately
17,100 cy of existing material from the site. Approximately 2,000 cy of existing railroad embankment
material (sand and rock of varying size) would be removed using an excavator. The excavated
embankment material is assumed to have a degree of contamination that will require disposal at an
approved off-site upland facility. Excavation for the estuary tidal marsh restoration landward of the
railroad would also be removed using an excavator and would comprise the majority of site excavation.
Excavation in the estuary area may encounter buried debris (e.g., concrete, wood) associated with the
former Meadowdale Country Club at the site, and may require materials sorting for disposal and
management of groundwater near the surface depending on conditions at the time of construction.
Grading would be conducted in approximately 161,400 square feet of upland areas to allow the construction
of park features, including pedestrian access, stormwater management, and recontouring the creek bed
and shoreline, in order to support the estuary restoration and provide a natural shoreline transition area.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally describe. [help]
Minor erosion could occur from project construction during grading and fill activities. After project
construction, sediment is expected to continue to be delivered from upstream sources via natural
processes to Lund’s Gulch Creek during major winter storms. One of the project design objectives is to
restore natural sediment transport processes and accommodate sediment deposition in the lower creek
and restored estuary while providing for public safety.
g. About what percent of the site will be covered with impervious surfaces after project construction (for example, asphalt or buildings)? [help]
The site currently includes 50,900 sf of impervious surfaces, including paved walkways, concrete slabs
supporting the restroom enclosure and picnic shelter, the access road and parking area, and the existing
pedestrian bridge. The proposed Project would remove approximately 9,400 sf of impervious surface and add
approximately 4,600 sf of new impervious surface for a net reduction of 4,800 sf, or 9%. The new impervious
surfaces include the railroad bridge, paved walkways on the south side of the creek, minor widening of
the access road east of the ADA parking area, and the concrete pad for the relocated restroom enclosure.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any: [help]
• All work will be performed according to the requirements and conditions of the project permits.
• In-water work will occur during the approved regulatory work window, or an approved extension
of the work windows.
• Turbidity and other water quality parameters will be monitored to ensure construction activities
are in compliance with Washington State Surface Water Quality Standards (173-201A WAC).
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• The contractor will be required to develop and implement a Spill, Prevention, Control, and
Countermeasure (SPCC) Plan to be used for the duration of the project to safeguard against an
unintentional release of fuel, lubricants, or hydraulic fluid from construction equipment.
• The contractor will be required to implement and maintain temporary erosion and sediment
control best management practices (BMPs) through construction until construction is complete
and the site is vegetated.
• Excess or waste materials will not be disposed of or abandoned waterward of OHWM or allowed
to enter waters of the State.
• No petroleum products; fresh cement, lime, or concrete; chemicals; or other toxic or deleterious
materials will be allowed to enter surface waters.
• The contractor will be required to retrieve any floating debris generated during construction
using a skiff and a net. Debris will be disposed of at an appropriate upland facility.
• The contractor will be required to properly maintain construction equipment and vehicles to
prevent them from leaking fuel or lubricants. If there is evidence of leakage, further use of such
equipment will be suspended until the deficiency has been satisfactorily corrected.
2. Air [help]
a. What types of emissions to the air would result from the proposal during construction, operation, and maintenance when the project is completed? If any, generally describe and give approximate quantities if known. [help]
Exhaust and odor from construction equipment would be the primary sources of emissions during
construction. Fugitive dust could also be generated during dry periods of construction. Any impact to air
quality would be localized and temporary, and no permanent impacts to local air quality are anticipated.
b. Are there any off-site sources of emissions or odor that may affect your proposal? If so,
generally describe. [help]
There are no known off-site sources of emissions or odor that may affect the project.
c. Proposed measures to reduce or control emissions or other impacts to air, if any: [help]
BMPs would be implemented to avoid adverse impacts to the air, including:
• All work will be performed according to the requirements and conditions of the project permits.
• The contractor will be required to conduct regular inspections of equipment and vehicles to
ensure that uncontrolled emissions do not occur.
3. Water [help]
a. Surface Water:
1) Is there any surface water body on or in the immediate vicinity of the site (including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. [help]
A stream (Lund’s Gulch Creek), a freshwater pond, Puget Sound, and eight wetlands have been
identified on the project site (Wetlands A, B, C, D, E, F, G, and H). Please see the Wetland, Stream, and
Marine Delineation and the Critical Areas Report for details.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 10 of 28
2) Will the project require any work over, in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. [help]
Yes, the project would involve removal of the box culvert and replacement of the existing railroad bridge
including (upland) pile driving, grading, placement of fill, paving, planting of native and non-native
vegetation, and the placement of habitat gravel and woody material within Lund’s Gulch Creek. The new
pedestrian bridge would also span Lund’s Gulch Creek set on two upland concrete abutments, each
support by twelve 4-inch-diameter steel pipe piles; the surface of the bridge includes 400 sf of overwater
cover, which would be grated. Part of the pathway south of the pedestrian bridge would be elevated
over Wetland B. Excavation and fill will be required in the lower portion of Lund’s Gulch Creek to restore
a functioning pocket estuary, including restored tidal marsh with a fringe of freshwater emergent
wetland to accommodate future sea level rise. Temporary fill on the beach area is also included to create
a temporary work pad, and sand enhancement and planting would be provided to restore the beach
once the temporary work pad is removed. These proposed activities are shown on Figures 4 through 8.
3) Estimate the amount of fill and dredge material that would be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill material.
Table 1 shows the amount of excavation and fill proposed in wetlands and below OHWM of Lund’s Gulch
Creek and below MHHW of Puget Sound (see Figures 6, 8, and 10). Grading is being conducted to
recontour the creek bed and shoreline to a more natural transition from the water to the uplands.
Table 1 Fill and Excavation within Surface Waters and Wetlands
Activity Waterbody Impact Location
Duration of
Impact
Material to Be
Placed in or
Removed from
Waterbody
(cubic yards)
Area of
Waterbody
Directly
Affected
(square feet)
Shoreline Fill for
Work Pads Puget Sound Beach below
MHHW Temporary +4 102
Beach
Excavation for
Estuary
Restoration
Puget Sound
Estuary restoration
west of railroad,
following removal of
work pads below
MHHW
Permanent
(Enhancement) -85 2,868
Beach Sand Fill
for Restoration Puget Sound
Estuary restoration
west of railroad,
following removal of
work pads below
MHHW
Permanent
(Enhancement) +106 2,868
Culvert Removal
and Excavation
Lund’s Gulch
Creek
Existing channel
below OHWM
Permanent
(Enhancement) -10 482
Sand and Gravel
Fill for Channel
Creation
Lund’s Gulch
Creek
Under railroad berm
below OHWM
Permanent
(Enhancement) +18 482
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 11 of 28
Activity Waterbody Impact Location
Duration of
Impact
Material to Be
Placed in or
Removed from
Waterbody
(cubic yards)
Area of
Waterbody
Directly
Affected
(square feet)
Stream Channel
Fill for Work
Pads
Lund’s Gulch
Creek
Existing channel
below OHWM Temporary +135 1,016
Excavation for
Conversion to
Estuary1
Lund’s Gulch
Creek Stream channel Permanent
(Enhancement) -390 3,286
Habitat Material
Fill (gravel and
large woody
material)
Lund’s Gulch
Creek Stream channel Permanent
(Enhancement) +122 3,286
Fill for Elevated
Path Segment
Foundations
Wetland B Diamond pier
foundations (eight) Permanent +8 8
Fill Wetland F
Work pad for
railroad bridge
construction
Temporary +30 640
Note:
1 A total of nearly 17,000 cy of excavation will be required for estuary restoration; table reflects only excavation below OHWM of Lund’s Gulch Creek.
4) Will the proposal require surface water withdrawals or diversions? Give general description, purpose, and approximate quantities if known. [help]
During the approved in-water work window, a temporary diversion would be created at the upstream
portion of Lund’s Gulch Creek (see Figure 16). The diversion would involve the placement of multiple 36-
inch-diameter corrugated metal pipe culverts, along with sandbags to divert stream flows into the pipe.
The pipes would be routed to the beach area, where they would extended as far into the water as
possible, and the discharge would be dispersed as much as possible. This diversion would allow for
stream work to be conducted in the dry and minimize the impacts to water quality.
5) Does the proposal lie within a 100-year floodplain? If so, note location on the site plan.
[help]
The western edge of the project site is within the 100-year floodplain (Figure 11).
6) Does the proposal involve any discharges of waste materials to surface waters? If so,
describe the type of waste and anticipated volume of discharge. [help]
The project does not propose to discharge waste materials to surface waters. An unintentional release of
fuel, lubricants, or hydraulic fluid from construction equipment could occur; however, BMPs would be
employed to minimize the risk of such a release and prevent accidental spills to surface waters.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 12 of 28
b. Ground Water:
1) Will groundwater be withdrawn from a well for drinking water or other purposes? If so, give a general description of the well, proposed uses and approximate quantities withdrawn from the well. Will water be discharged to groundwater? Give general description, purpose, and approximate quantities if known. [help]
No groundwater withdrawals are proposed as part of the project.
2) Describe waste material that will be discharged into the ground from septic tanks or other sources, if any (for example: Domestic sewage; industrial, containing the following chemicals. . . ; agricultural; etc.). Describe the general size of the system, the
number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) are expected to serve. [help]
No waste materials are anticipated to be discharged to groundwater as part of this project.
c. Water runoff (including stormwater):
1) Describe the source of runoff (including storm water) and method of collection and disposal, if any (include quantities, if known). Where will this water flow? Will this water flow into other waters? If so, describe. [help]
Runoff would be generated from stormwater across the impervious surfaces of the site. The project
would provide improvements to the existing stormwater management system to improve water
quality prior to entering Lund’s Gulch Creek and Puget Sound, including a wet biofiltration swale for
treatment. The paved swale along a portion of the existing roadway would be replaced with a rock-
lined drainage swale installed over a flexible impermeable liner. Stormwater from the road and ADA
parking area would be collected in a series of catch basins and conveyed via storm drain to a wet
biofiltration swale for treatment. The swale would be located along the south side of the paved
pedestrian pathway at the base of the hillside on the south side of the ravine. This treatment swale
would terminate across from the existing picnic shelter and upstream of an existing wetland. Treated
stormwater from the swale would be discharged to a catch basin and conveyed under the path in a
storm drain to a discharge point in the south lobe of the restored pocket estuary. At the pipe outfall,
stormwater would be conveyed via a cobble lined swale to the proposed MHHW in the restored
estuary, where it would flow directly into Puget Sound. Stormwater runoff from paved pathways
would sheet flow to adjacent landscaping for dispersal. Runoff from building roofs would be
discharged to existing roof drain systems or to adjacent landscaping for dispersal.
2) Could waste materials enter ground or surface waters? If so, generally describe. [help]
Waste materials, including diesel fuel and lubricating oils from accidental leakage from heavy
construction equipment and vehicles, could enter ground or surface waters. BMPs would be
implemented to reduce or avoid potential discharges.
3) Does the proposal alter or otherwise affect drainage patterns in the vicinity of the site? If so, describe. [help]
The project is not expected to substantially alter or affect drainage patterns. The project would
implement stormwater treatment measures to collect and treat stormwater before it enters Lund’s
Gulch Creek and Puget Sound.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 13 of 28
d. Proposed measures to reduce or control surface, ground, and runoff water, and drainage pattern impacts, if any: [help]
The overarching ecological goal of the project is to restore the pocket estuary of lower Lund’s Gulch
Creek, including the creation of approximately 1.18 acre of tidal wetland habitat, approximately 0.28 acre
of freshwater wetland, and approximately 0.23 acre of instream restoration. Additional enhancement and
planting of approximately 1.68 acres of riparian buffers of the estuary and stream is also included.
The proposed project would avoid permanent adverse impacts to marine and stream waters below
MHHW and OHWM, respectively. The project is designed to avoid direct impacts to existing wetlands as
much as possible, and the only direct impact to wetlands would be a negligible amount (8 sf, or
0.0001 acre) of impact to Wetland B. The impact to Wetland B is due to an elevated pedestrian walkway
segment that would provide park visitors access to the northern side of the restored estuary. This ADA-
accessible pedestrian path is a key component of the public access for the park. Additional impacts to
Wetland B were avoided by using the following measures:
• Locate the pedestrian walkway in the narrowest portion of the wetland
• Elevate the walkway over the wetland, to maintain wetland hydrology
• Use diamond pier foundations with smaller footprint to minimize wetland disturbance
Other impact minimization and avoidance measures for the project include the following:
• Locate all estuary excavation at least 10 feet from existing wetland boundaries
• Reconfigure improvements to the ADA access road to avoid fill in Wetland D
• Minimize footprint of new walkways and relocated restroom enclosure for a net decrease in
impervious surface of 4,800 sf
• Locate footings for new pedestrian bridge above OHWM; provide grating on bridge surface to
minimize potential shading impacts
• Avoid permanent impacts to Wetland F by locating widening of the southern pedestrian path to
meet ADA requirements outside of the wetland
Measures to reduce or control surface water during construction include the following:
• A temporary diversion of Lund’s Gulch Creek to allow instream work to be conducted in the dry
and minimize water quality impacts. A sediment curtain would be installed at the discharge area
to minimize water quality impacts.
• Construction of improvements to the stormwater capture and treatment system.
• The contractor will be responsible for the preparation and implementation of a Construction
Stormwater Pollution Prevention Plan (SWPPP) and a SPCC Plan to be used for the duration of
the project. The SWPPP and SPCC Plan will both be submitted to the Project Engineer prior to
the commencement of any construction activities. A copy of these plans with any updates will be
maintained at the work site by the contractor.
• The contractor will be required to implement and maintain temporary erosion and sediment
control BMPs through construction until the site is vegetated.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 14 of 28
The potential permanent impact to Wetland B would occur from the installation of diamond pier
foundations for the elevated pedestrian walkway segment. The permanent impact of 8 square feet is
nearly negligible, but will be mitigated through restoration of freshwater wetland habitat in the estuary.
The potential permanent impacts to surface water and wetland buffers total 0.28 acre and are largely due
to the installation of ADA-accessible pedestrian walkways and overlooks. Permanent buffer impacts will
also occur with minor widening of the ADA-access road, which will also be used for construction access
and material hauling. The permanent impacts to buffer areas will be mitigated through riparian plantings
along Lund’s Gulch Creek.
The potential temporary impacts in surface water and wetland buffers of 0.31 acre will be mitigated
through habitat restoration or enhancement at or near the location of the impact. Temporary impacts to
buffers outside of the restored estuary area from staging on the lawn area, and construction access for
installation of the pedestrian bridge will be addressed through riparian plantings along Lund’s Gulch
Creek, upstream of the new pedestrian bridge.
Additional details on potential impacts and mitigation are found in the Critical Areas Report.
4. Plants [help]
a. Check the types of vegetation found on the site: [help]
__X_ deciduous tree: alder, maple, aspen, other: willow, ash, hawthorn
__X_ evergreen tree: fir, cedar, pine, other: spruce, hemlock
__X_ shrubs: salmonberry, dogwood, vine maple, ivy, holly, azalea, currant, blackberry, thimbleberry
__X_ grass: morning glory, mowed lawn, rush, canarygrass, fern, piggyback, buttercup, nettle
____ pasture
____ crop or grain
____ Orchards, vineyards or other permanent crops.
__X_ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other: dune grass, Puget Sound gumweed, sedge
__X_ water plants: water lily, eelgrass, milfoil, other
____ other types of vegetation
Vegetation within the project area includes a variety of native, non-native, and ornamental trees, shrubs,
grasses, and herbaceous species associated with upland, wetland, and riparian habitat.
b. What kind and amount of vegetation will be removed or altered? [help]
The project seeks to protect native vegetation and existing mature trees to the extent possible. New
plantings will feature all native species. Much of the existing native vegetation and mature trees in the
ravine area would be protected. A summary of vegetation removal and alteration is listed below. Refer to
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 15 of 28
Figures 13 and 14, as well as the Critical Areas Report for more information regarding vegetation
removal and alteration.
• Beach Shrub Vegetation: Removal of existing shrubs on the west side of the railroad
embankment would be offset by 3,200 sf of new backshore beachgrass native plantings on the
beach north and south of the restored estuary channel.
• Conversion of Lawn Area to Creek and Estuary Habitat: Removal of 32,400 sf of lawn area and
installation of native vegetation and a variety of wetland and riparian plant species would be
planted in the fringe areas of the restored estuary and stream.
• Conversion of Riparian Areas to Instream, Intertidal Wetland, and Freshwater Emergent
Wetland: Approximately 13,000 sf of riparian area would be converted to instream or estuarine
wetland habitat. The existing freshwater wetlands on the site would be preserved.
• Retention and Enhancement of Riparian Areas: All of the existing riparian area that is not
converted to instream or estuary habitat would remain, and would be enhanced with additional
native tree and shrub plantings, and approximately 10,400 sf of uplands would be converted to
riparian areas.
• Tree Removal and Replacement: Removal of approximately 40 trees in the restored estuary
location and 10 trees in the railroad right-of-way would be offset by 275 new native tree
plantings, as well as native shrub plantings, in riparian areas along Lund’s Gulch Creek and the
restored pocket estuary.
c. List threatened and endangered species known to be on or near the site. [help]
There are no Endangered Species Act (ESA)-listed plant species known to be on or near the site.
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on the site, if any: [help]
Native plants would be placed in all areas of exposed soil based on the planting plan (Figure 11). The
project would decrease the amount of upland-turf landcover and increase the amount of intertidal and
freshwater wetland habitats. Approximately 32,400 sf of lawn would be converted to natural habitat and
landscaped and native vegetation areas; see Figures 13 and 14 for the planting plan and list of species.
e. List all noxious weeds and invasive species known to be on or near the site. [help]
English ivy, holly, Himalayan blackberry, morning glory, reed canarygrass, creeping buttercup, and
English plantain have been documented on the project site.
5. Animals [help]
a. List any birds and other animals which have been observed on or near the site or are known to be on or near the site. [help]
Examples include:
birds: hawk, heron, eagle, songbirds, other:
mammals: deer, bear, elk, beaver, other:
fish: bass, salmon, trout, herring, shellfish, other:
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 16 of 28
b. List any threatened and endangered species known to be on or near the site. [help]
• Chinook salmon (Oncorhynchus tshawytscha)
• Steelhead trout (Oncorhynchus mykiss)
• Bull trout (Salvelinus confluentus)
• Marbled murrelet (Brachyramphus marmoratus)
c. Is the site part of a migration route? If so, explain. [help]
The project site is within the Pacific Flyway for waterfowl.
d. Proposed measures to preserve or enhance wildlife, if any: [help]
Habitat restoration is an integral part of the project, and restoration elements are designed to exceed
potential impacts to natural resources resulting from the construction of park improvements.
The following project elements are proposed to improve habitat conditions for fish and wildlife:
• Replace the existing developed park areas with riparian and estuary habitat, including primarily
restored tidal marsh with a fringe of freshwater emergent wetland.
• Remove a culvert and narrowly constricted creek channel structures, and create sufficient space
and grades to allow Lund’s Gulch Creek to naturally meander and deposit sediment in the
restored estuary area.
• Provide improvements to the existing stormwater management system that would improve water
quality prior to entering Puget Sound.
• Install new native plantings within the project site.
With the actions described above, the project would largely improve aquatic and shoreline habitat for
wildlife compared to existing conditions.
e. List any invasive animal species known to be on or near the site. [help]
There are no invasive animal species known to be on the site.
6. Energy and Natural Resources [help]
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc. [help]
No new energy needs would be required as part of the project.
b. Would your project affect the potential use of solar energy by adjacent properties? If so, generally describe. [help]
The project is not expected to cause new sources of shading that would preclude the future use of solar
power.
c. What kinds of energy conservation features are included in the plans of this proposal?
List other proposed measures to reduce or control energy impacts, if any: [help]
There are no new energy needs proposed as part of the project; therefore, no energy conservation
features are included as part of the proposal.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 17 of 28
7. Environmental Health [help]
a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this proposal? If so, describe. [help]
There is no known risk of exposure to toxic chemicals, risk of fire and explosion, spill, or hazardous waste
that could occur as a result of this proposal.
1) Describe any known or possible contamination at the site from present or past uses. [help]
A Phase I Environmental Site Assessment for the project area was conducted (Shannon & Wilson
2015), which revealed the presence of one Recognized Environmental Condition: potential
contaminants associated with the presence of railroad tracks. The project proposes removing a
portion of the embankment along the existing railroad tracks. Due to the potential for contaminants,
this material would be disposed of at an approved off-site location.
2) Describe existing hazardous chemicals/conditions that might affect project
development and design. This includes underground hazardous liquid and gas transmission pipelines located within the project area and in the vicinity. [help]
There are no known hazardous chemicals or conditions that might affect the project development.
3) Describe any toxic or hazardous chemicals that might be stored, used, or produced during the project's development or construction, or at any time during the operating life of the project. [help] Petroleum products would be temporarily stored on site to fuel construction vehicles. A portion of
the site would be used for parking. Small leaks from vehicles may occur during the life of the project.
No other storage or production of hazardous materials is expected.
4) Describe special emergency services that might be required. [help] The project is not expected to result in the need for special emergency services. Access to the site
would continue to be provided for emergency vehicles.
5) Proposed measures to reduce or control environmental health hazards, if any: [help] The contractor would prepare a SPCC Plan to identify means to address potential spills during
construction.
b. Noise [help]
1) What types of noise exist in the area which may affect your project (for example:
traffic, equipment, operation, other)? [help]
Sources of existing noise include sounds generated from water craft on Puget Sound; Amtrak,
Sounder, and freight trains that pass through the project site; traffic on local streets; and residential
properties near the site. However, these sources of noise are not expected to affect the project.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 18 of 28
2) What types and levels of noise would be created by or associated with the project on a short-term or a long-term basis (for example: traffic, construction, operation, other)? Indicate what hours noise would come from the site. [help]
Short-term noise would be generated during construction of the project from typical construction
equipment such as backhoes and excavators. Some upland pile driving would occur over an estimated
1- to 2-month period to install 40 H-piles and 150 feet of sheet pile (for temporary shoring)
associated with the railroad bridge construction. Upland pile driving for twenty-four 4-inch-diameter
steel pipe piles for the new pedestrian bridge would also occur. Construction noise is anticipated to
generally occur during daylight hours, as allowed by Snohomish County and City of Edmonds
Municipal Codes. There is the potential for some construction noise to occur beyond the allowable
hours due to constraints with rail traffic windows; in this case, the Contractor may need to request a
conditional use or noise variance. Once the project is complete, no additional noise is expected
beyond that generated from active and passive recreation.
3) Proposed measures to reduce or control noise impacts, if any: [help]
Construction would occur during times allowed by the local noise ordinances, or if necessary due to
limitations from railroad operations and/or low tides, under a noise variance approval.
8. Land and Shoreline Use [help]
a. What is the current use of the site and adjacent properties? Will the proposal affect current land uses on nearby or adjacent properties? If so, describe. [help]
The property is currently used as a park for public recreational activities. The site consists of walking
trails, a gated limited-access road, mowed grass areas, a picnic shelter and recreational facilities, a
pedestrian bridge, a restroom enclosure, an ADA-compliant parking lot, a ranger residence, and
undeveloped forest and shrub habitat.
The park borders the shoreline of Puget Sound. Adjacent properties consist of single-family residences
and the BNSF Railway right-of-way. Upstream of the site, the City of Lynnwood has preserved 90 acres of
upland forested property adjacent to the site. The proposal would not affect current land uses on nearby
or adjacent properties.
b. Has the project site been used as working farmlands or working forest lands? If so, describe. How much agricultural or forest land of long-term commercial significance will be converted to other uses as a result of the proposal, if any? If resource lands have not been designated, how many acres in farmland or forest land tax status will be converted to nonfarm or nonforest use? [help]
There is no known use of the site as working farmlands or working forest lands.
1) Will the proposal affect or be affected by surrounding working farm or forest land normal business operations, such as oversize equipment access, the application of pesticides, tilling, and harvesting? If so, how: [help]
There are no nearby farming or forest uses; therefore, no effects are anticipated.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 19 of 28
c. Describe any structures on the site. [help]
Structures in the lower park include a picnic shelter, the concrete box culvert, a pedestrian bridge,
portable toilets in a restroom enclosure, and a ranger residence.
d. Will any structures be demolished? If so, what? [help]
Yes, the existing restroom enclosure and concrete box culvert would be demolished, and the sand
volleyball court would be removed.
e. What is the current zoning classification of the site? [help]
Residential (R-9,600)
f. What is the current comprehensive plan designation of the site? [help]
Designated Public/Institutional Lands (GMACP) and Urban Low Density
g. If applicable, what is the current shoreline master program designation of the site? [help]
Urban
h. Has any part of the site been classified as a critical area by the city or county? If so, specify. [help]
The following critical areas were identified as occurring within the project area: Wetlands and Fish and
Wildlife Conservation Areas (SCC 30.62A and ECDC 23.50) and Geologic Hazardous Areas (SCC 30.62B and
ECDC 23.80). Wetlands and Fish and Wildlife Conservation Areas located within the project area include
wetlands, streams, marine waters, wildlife conservation areas, and frequently flooded areas. Geologic
Hazardous Areas located within the project area include landslide hazard areas.
i. Approximately how many people would reside or work in the completed project? [help]
The park would continue to require routine maintenance by Parks staff, but this work is expected to be
and accomplished by existing staff. The project would not create residential units; the park ranger
residence would remain on the property.
j. Approximately how many people would the completed project displace? [help]
The completed project would not displace any people.
k. Proposed measures to avoid or reduce displacement impacts, if any: [help]
No displacement is anticipated; therefore, no measures are proposed to avoid or reduce impacts.
L. Proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any: [help]
The project does not propose any change in land uses; therefore, the project is compatible with existing
and projected land uses and plans.
m. Proposed measures to reduce or control impacts to agricultural and forest lands of long-term
commercial significance, if any: [help]
There are no nearby agricultural or forest lands of long-term commercial significance; therefore, no
measures are proposed to ensure compatibility.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 20 of 28
9. Housing [help]
a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low-income housing. [help]
The project would not create new housing.
b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low-income housing. [help]
The project would not eliminate any units.
c. Proposed measures to reduce or control housing impacts, if any: [help]
No housing impacts are proposed as part of the project.
10. Aesthetics [help]
a. What is the tallest height of any proposed structure(s), not including antennas; what is the principal exterior building material(s) proposed? [help]
The railroad bridge is the tallest proposed structure, at approximately 15 feet above grade set into the
railroad embankment and primarily constructed of concrete (see Figure 15). The restroom enclosure
would be approximately 14 feet above grade with exterior building material made of steel. The
pedestrian path would include an elevated segment with fiberglass grating over an existing wetland area,
approximately 1.5 feet above the existing grade, and a pedestrian bridge over Lund’s Gulch Creek,
approximately 7 feet above grade at its highest point and constructed of concrete and steel.
b. What views in the immediate vicinity would be altered or obstructed? [help]
Views for park users could be partially altered from the construction of the new restroom enclosure. The
design considered the aesthetics of the park and the structures were placed where they are expected to
have the least impact on views. The project also proposes picnic viewpoints along the relocated northern
loop path, providing visual access to the restoration areas. The removal of the existing railroad
embankment with the proposed railroad bridge is expected to enhance views of Puget Sound from the
park and assist the Park Rangers with visibility of the beach area. Due to the nature of the park and the
profile and size of the structures, neighboring views towards the park would not be affected by any of
the structures.
c. Proposed measures to reduce or control aesthetic impacts, if any: [help]
The project proposes various elements designed to create a memorable waterfront park while enhancing
habitat and balancing the project site’s natural setting with public access opportunities. Design elements
account for the context of the area.
11. Light and Glare [help]
a. What type of light or glare will the proposal produce? What time of day would it mainly occur? [help]
One light, located east of the proposed railroad bridge and operable only when needed from the
existing ranger residence, would be included for safety purposes to replace an existing light located near
the culvert. No other sources of light or glare are proposed as part of the project.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 21 of 28
b. Could light or glare from the finished project be a safety hazard or interfere with views? [help]
No, the proposed safety light would only be used by the ranger when needed.
c. What existing off-site sources of light or glare may affect your proposal? [help]
Neighboring light from the surrounding private residences is not expected to affect the project.
d. Proposed measures to reduce or control light and glare impacts, if any: [help]
There are no measures proposed to reduce or control light and glare because they are proposed as part
of the project.
12. Recreation [help]
a. What designated and informal recreational opportunities are in the immediate vicinity? [help]
Meadowdale Beach Park is one of only three County-owned and operated parks that provides public
beach access to Puget Sound. The park’s natural forests, trail system, creek, and waterfront access are the
main attractions and are popular with 50,000 to 70,000 annual visitors. Residents throughout the County,
other nearby communities, and some from out of state utilize the park for daily exercise routines,
walking, picnicking, beach-combing, and bird- and wildlife-watching. The park is used extensively for
environmental education by local schools, Boy and Girl Scouts, and Edmonds Community College (Dailer
2015). The park is also an official Washington Water Trails campsite, providing beach camping to people
using non-motorized watercraft.
b. Would the proposed project displace any existing recreational uses? If so, describe. [help]
Access to the existing Meadowdale Beach Park would be restricted for approximately 17 months during
construction. However, once complete, the park is expected to improve recreational opportunities
compared to existing conditions.
c. Proposed measures to reduce or control impacts on recreation, including recreation opportunities to be provided by the project or applicant, if any: [help]
The intent of the project is to improve recreational opportunities; therefore, no measures to reduce or
control impacts are currently proposed. The proposed project would provide the following
improvements to recreational opportunities for park users:
• Beach Access: The pedestrian access path would be separated from the creek channel and located on the far south side under the railroad bridge. The path would provide the 80-inch
minimum height required for ADA-compliant vertical clearance.
• Pedestrian Bridge: A new pedestrian bridge would be installed upstream of the pocket estuary across the restored stream channel, downstream of the existing pedestrian bridge.
• Restroom Enclosure: The enclosure would be relocated farther upland, away from flood inundation and closer to the existing picnic shelter.
• Paths: The path connecting the picnic shelter to the northern path would be partially re-aligned,
and the loop path north of the proposed marsh would be truncated in order to avoid habitat fragmentation.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 22 of 28
• Lawn Renovation: Drainage of remaining lawn areas would be improved, and the volleyball
court would be converted to lawn area.
• ADA Access: ADA access would be extended throughout the project area by constructing
accessible walkways to the railroad bridge.
• Site Furnishings: New benches, picnic tables, and other site furnishings would be provided to
enhance the park and recreational facilities.
• Picnic Viewpoints: Two picnic viewpoints would be established at the new path terminus.
13. Historic and cultural preservation [help]
a. Are there any buildings, structures, or sites, located on or near the site that are over 45 years old listed in or eligible for listing in national, state, or local preservation registers? If so,
specifically describe. [help]
The segment of the Great Northern Railway that runs through the project site was evaluated as part of
the cultural resources assessment (ICF 2018. In addition, archaeological investigations on the site
revealed information on the former Meadowdale Country Club; see Section 13.b.
b. Are there any landmarks, features, or other evidence of Indian or historic use or occupation? This may include human burials or old cemeteries. Are there any material evidence, artifacts, or areas of cultural importance on or near the site? Please list any professional studies conducted at the site to identify such resources. [help]
No precontract or early historic period resources were documented or identified during any of the
geotechnical monitoring or archaeological investigations; however, portions of these resources could still
be intact and deeply buried in valley alluvial deposits or partially intact and displaced or disturbed by
later development activities (ICF 2018). During archaeological monitoring of geotechnical investigations,
ICF documented extensive demolition debris and partially intact portions of the pool and concrete slabs
that are associated with facilities of the former Meadowdale Country Club. In addition, scattered historic
debris, including nails, ceramic pool tiles, and brick fragments, were identified in shovel tests conducted
in the Area of Potential Effects. The Cultural Resources Survey documented these deposits as an historic-
era archaeological site and recommended that archaeological monitoring occur during construction
activities that are expected to encounter native Holocene-aged deposits, given the sensitivity of the
project Area of Potential Effects (APE) for containing intact buried archaeological deposits.
c. Describe the methods used to assess the potential impacts to cultural and historic resources on or near the project site. Examples include consultation with tribes and the department of archeology and historic preservation, archaeological surveys, historic maps, GIS data, etc. [help]
A Cultural Resources Survey was completed for the project, which included archival research and field
investigation by an archaeologist (ICF 2018). Materials reviewed consisted of primary and secondary
sources, including historical maps, photographs, and written histories of the region. Research was
conducted in person or online at the following repositories:
• City of Edmonds Historical Society
• Great Northern Railway Historical Society
• Pacific Northwest Railroad Archive
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 23 of 28
• Snohomish County Tax Assessor Office
• U.S. Bureau of Land Management
• ICF corporate library
ICF reviewed historical maps from the project vicinity to determine whether mapped historical features
are present in the APE. Digital Joint Photographic Experts Group (JPEG) files were obtained from the
General Land Office (GLO) map (General Land Office 1897) for the area, imported into a project-specific
geographic information system (GIS), and georeferenced. The APE was overlain onto the GLO map to
document the land use history, determine anticipated archaeological property types, and assess the
archaeological potential of the APE.
The map and photographs collections of the City of Edmonds Historical Society were also consulted to
determine the archaeological potential of the APE. The City of Edmonds Historical Society provided
detailed archival information concerning the history of the Meadowdale Country Club. The BNSF archival
data were obtained by Shannon & Wilson for the project team and included detailed information
regarding the history of the Great Northern Railway segment in the APE.
ICF archaeologists also performed a cultural resources survey of the APE using standard DAHP-accepted
methods appropriate for finding and recording cultural resources. The survey included both an
archaeological investigation, consisting of geotechnical bore and test pit monitoring, a pedestrian survey
and shovel probe excavation, and an historic resources survey.
c. Proposed measures to avoid, minimize, or compensate for loss, changes to, and disturbance to resources. Please include plans for the above and any permits that may be
required. [help]
Archaeological monitoring is recommended for construction activities that are expected to encounter
native Holocene-aged deposits in the APE. An Unanticipated Discovery Plan and Procedures (UDP) would
be implemented during construction. Prior to construction implementation, the development of a
monitoring plan to accompany the UDP would assist with the archaeological monitoring and treatment
of cultural resources during construction.
14. Transportation [help]
a. Identify public streets and highways serving the site or affected geographic area and
describe proposed access to the existing street system. Show on site plans, if any. [help]
As shown in the diagram below, the park’s main public access is a parking lot located off of 156th Street
SW, which connects to a 1.25-mile earthen pedestrian trail to the lower park and the proposed project
area. Highway WA-99 is the closest highway connecting to 156th Street SW. Highway WA-99 can be
accessed from I-5 or I-405 north of Seattle, Washington. A one-lane ADA- and Park Ranger-only access
road to the lower park area is accessed from a gated entrance on 75th Place West, and would also be
used for construction access. Project construction is anticipated to require approximately 1,700 truck trips.
Development of Haul Route Agreements with Snohomish County and the City of Edmonds are planned to
ensure that potential traffic impacts during construction are addressed and mitigated. Figure 17 shows
the proposed haul route to be used during construction activities and connecting street system.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 24 of 28
b. Is the site or affected geographic area currently served by public transit? If so, generally describe. If not, what is the approximate distance to the nearest transit stop? [help]
The closest bus stop to Meadowdale Beach Park is 0.6 mile away, located at 52nd Avenue W and 156th
Street SW.
c. How many additional parking spaces would the completed project or non-project proposal have? How many would the project or proposal eliminate? [help]
There are currently 28 parking stalls (but no ADA parking facilities) at the upper parking lot off
156th Street SW. No changes to the upper parking lot are proposed. The project proposes to restripe the
ADA parking area in the lower park area and potentially add one ADA parking stall in that area.
d. Will the proposal require any new or improvements to existing roads, streets, pedestrian,
bicycle or state transportation facilities, not including driveways? If so, generally describe (indicate whether public or private). [help]
The project would include improvements and relocations of the existing pedestrian paths within the lower
portion of the publicly owned park. The project also proposes upgrades to the existing limited-access
road. There would be no additions of other transportation infrastructure outside of the project site.
e. Will the project or proposal use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe.
The project would include replacing the existing culvert through the railroad embankment with a railroad
bridge. Rail access may be used for some construction equipment and materials, pending additional
discussions with BNSF and future contractor selection.
f. How many vehicular trips per day would be generated by the completed project or proposal? If known, indicate when peak volumes would occur and what percentage of the volume would be trucks (such as commercial and nonpassenger vehicles). What data or transportation models were used to make these estimates? [help]
Because the project would not increase the size of the existing park or add occupied structures, it is not
expected to significantly increase vehicular trips.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 25 of 28
g. Will the proposal interfere with, affect or be affected by the movement of agricultural and forest products on roads or streets in the area? If so, generally describe. [help]
The proposed project is not expected to affect the movement of agricultural or forest products.
h. Proposed measures to reduce or control transportation impacts, if any: [help]
Development of Haul Route Agreements with Snohomish County and the City of Edmonds are planned
to ensure that potential traffic impacts during construction are addressed and mitigated through use of
traffic controls and public safety measures.
15. Public Services [help]
a. Would the project result in an increased need for public services (for example: fire protection, police protection, public transit, health care, schools, other)? If so, generally
describe. [help]
The project is not expected to substantially increase the need for public services.
b. Proposed measures to reduce or control direct impacts on public services, if any. [help]
There are no measures proposed to reduce or control impacts on public services.
16. Utilities [help]
a. Circle utilities currently available at the site: [help]
electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic system,
other ___________
b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. [help]
Stormwater drainage improvements are proposed as part of the project. The paved swale along the
existing roadway would be replaced with a rock-lined drainage swale installed over a flexible
impermeable liner. Catch-basin inlets and storm drains would be added at the bottom of the roadway
and ADA parking area, along with stormwater conveyance to a wet biofiltration swale. The biofiltration
swale would be installed along the toe of the slope adjacent to the pathway near the picnic shelter and
restroom enclosure, and stormwater pipe would be installed from the biofiltration swale under the paved
recreation path to a cobble-lined swale outletting in the restored estuary at the MHHW line.
An existing 2.5-inch-diameter PVC water line for potable water service extends into the park from a
meter box near the entry gate at the limited access roadway. The water line serves the ranger residence,
facilities at the picnic shelter, and a sink at the existing portable restroom enclosure. The line reduces
from 2.5 inches at the ranger residence to 1 inch between the picnic shelter and the portable restroom
enclosure. This line would be removed beyond the ranger residence and replaced with new 1- and 2-inch
HDPE service lines located outside of the tidal marsh estuary area to serve the picnic shelter and a new
foot-wash located landward of the beach access trail.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 26 of 28
Sewer service is provided to the Ranger residence via a buried tank with a grinder pump and a force
main that conveys sewage uphill to City of Edmonds sewer utility.
Power is currently available at the ranger residence, picnic shelter, and a pole light located near the
culvert entrance. This light would be removed under the proposed project; one safety light, located east
of the proposed railroad bridge and operable from the existing ranger house, would be included for use
only when trespassing is suspected.
There is currently no irrigation in the park, but temporary irrigation would be necessary to establish
plantings within riparian planting areas. Irrigation may be provided from existing water lines in the park,
or improvements may include a separate meter and service line extending from the top of the limited-
access road to the lower park. These lines are proposed to be abandoned following plant establishment.
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 27 of 28
C. Signature [help]
The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision.
Signature: ___________________________________________________
Name of signee __________________________________________________
Position and Agency/Organization ____________________________________
Date Submitted: _____________
SEPA Environmental checklist (WAC 197-11-960) July 2016 Page 28 of 28
References
Anchor QEA (Anchor QEA, LLC), 2017. Meadowdale Beach Park and Estuary Restoration Design Project
Wetland, Stream, and Marine Delineation. Prepared for Snohomish County Parks and Recreation. May
2017.
Anchor QEA, 2018a. Meadowdale Beach Park and Estuary Restoration Project Biological Assessment. Prepared
for Snohomish County Parks and Recreation. June 2018.
Anchor QEA, 2018b. Meadowdale Beach Park and Estuary Restoration Project Critical Areas Report. Prepared
for Snohomish County Parks and Recreation. June 2018.
Confluence (Confluence Environmental Company), 2016. Lund’s Gulch Creek Fish Habitat Assessment.
December 2016.
Confluence, 2017. Eelgrass Survey of Meadowdale Beach Park. October 2017.
Dailer, Doug (Park Ranger, Snohomish County Parks and Recreation), 2015. Personal communication with
Peter Hummel (Anchor QEA) during site visit on March 5, 2015.
ICF, 2018. Cultural Resources Assessment. April 2018.
Minard, J.P., 1982. Geologic Map of the Mukilteo Quadrangle, Washington: U.S. Geological Survey
Miscellaneous Field Studies Map MF-1438, scale 1:24,000.
Shannon & Wilson (Shannon & Wilson, Inc.), 2015. Meadowdale Beach Park Phase I Environmental Site
Assessment. September 2015.
Shannon & Wilson, 2018a. Geologically Hazardous Areas, Meadowdale Beach Park Estuary Restoration Project.
Prepared for Snohomish County. April 2018.
Shannon & Wilson, 2018b. Geotechnical Report, Meadowdale Beach Park Estuary Restoration. Prepared for
Snohomish County. February 2018.
USDA (United States Department of Agriculture), 2017. Web Soil Survey Home. Updated August 21, 2017.
Cited: November 1, 2017. Available from:
https://websoilsurvey.sc.egov.usda.gov/App/HomePage.htm.
Attachment 1
Figures
Puget Sound
Meadowdale BeachCounty Park
Lund's Gulch Creek
Railroad Right-of-Way (ROW)
City of Edmonds
Snohomish County
[0 300
Feet
LEGEND:Project AreaLund's Gulch CreekPark BoundarySnohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:04 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-01\Figure1_VicinityMap.mxd
Figure 1Vicinity MapMeadowdale Beach Park and Estuary Restoration Project
)Project Site
KING COUNTY
SNOHOMISH COUNTYEdmonds
Lund's Gulch Creek
Puget Sound
Ranger Residence
Picnic Shelter
Restroom Shelter
[0 300
FeetSOURCE:USDS NRCS Web Soil Survey
LEGEND:
Soil TypesAlderwoodAlderwood-Everett-ComplexFluvaquents
Project Area
Publish Date: 2017/02/21, 10:30 AM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2017_01\SitePlan_Soils.mxd
Figure 1aSoil Types within Project AreaMeadowdale Beach Park and Estuary Restoration Project
Lund's Gulch Creek
Puget Sound
Ranger Residence
Picnic Shelter
Restroom Shelter
[0 300
Feet
LEGEND:NWI WetlandsEstuarine and Marine DeepwaterEstuarine and Marine Wetland
Project Area
Publish Date: 2017/02/21, 10:31 AM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2017_01\SitePlan_NWI.mxd
Figure 1bExisting National Wetland Inventory Mapping DataMeadowdale Beach Park and Estuary Restoration Project
Lund's Gulch Creek
Puget Sound
Picnic Shelter
Restroom Shelter
Upper Lawn Area
Tunnel/Culvert
BNSF Railroad
ADA/Service Vehicle Access Road
Pedestrian Bridge
EntranceGate
75th Place W
Beach Area
[0 300
Feet
LEGEND:Lund's Gulch CreekProject AreaSnohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:06 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-01\Figure2_ExistingFeatures.mxd
Figure 2Project Area and Existing Site FeaturesMeadowdale Beach Park and Estuary Restoration Project
10891112121
2 1210108892522 2324152013141
6
171819152
011
12
1314 1617181818
192
1
21
21
2222
2324151520121213131414
1
6 1617171
8
192122232424152
0
25131314161718181819
212223
241010101010101515202020201
5
2011
11
11
12
12
12
131
4
1
414
1616161616 17
1818181818 191919
21100' BNSF ROW
PICNIC SHELTER
VOLLEYBALL
COURT
ASPHALT
PATH
CONCRETE CULVERT, SLABS,
GRATING, AND CHANNEL MATERIALS
CONC. PAD, PICNIC
TABLE, GRILL
RESTROOMENCLOSURE,
FOUNDATION,
AND CONC. SLAB
SANITARY SEWER MANHOLE
ROCKERY
STORM DRAIN CATCH BASIN(TYPE I)
CONIFER
DECIDUOUS
EDGE OF ASPHALT
BNSF RIGHT OF WAY
PROPERTY BOUNDARY
UNDERGROUND STORM LINE
UNDERGROUND SEWER GRAVITY LINE
UNDERGROUND TELEPHONE LINE
UNDERGROUND WATER LINE
UNDERGROUND POWER LINE
FENCING
CONC
P.A.
ABBREVIATIONS:
PLANTED AREA
CONCRETE
POWER VAULT
GRAVEL PATH
LOG DEBRIS
UNDERGROUND SEWER FORCEMAIN LINE
PICNIC TABLE
MEAN HIGHER HIGH ELEVATION (+9')
WETLAND BOUNDARY
ORDINARY HIGH WATER MARK (OHWM)
LEGEND:
DRAFT
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
Publish Date: 2018/03/06 3:34 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Existing.dwg Figure 3a
Figure 3a
Existing Conditions Plan (1 of 3)
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
25222324 2627283540
36 37 38 39
4142
5560653531
31
32
323232
33
3334
34
362
5 3035
2
1
21
21
2222
23242626 2627 28
2
9
31
32
3
3
3
4
36
20253021222324242426272829
313233
25 303
5
35
3540452223
24
2
6 2
7
2
8 2931323334343436373839 4142434446512025301818181818191919212223242627
2727
282
828
292929
31 32 33PICNIC SHELTER
VOLLEYBALL
COURT
RANGER
RESIDENCE
ASPHALTPARKING LOT
SANITARY SEWER MANHOLE
ROCKERY
STORM DRAIN CATCH BASIN(TYPE I)
CONIFER
DECIDUOUS
EDGE OF ASPHALT
BNSF RIGHT OF WAY
PROPERTY BOUNDARY
UNDERGROUND STORM LINE
UNDERGROUND SEWER GRAVITY LINE
UNDERGROUND TELEPHONE LINE
UNDERGROUND WATER LINE
UNDERGROUND POWER LINE
FENCING
CONC
P.A.
ABBREVIATIONS:
PLANTED AREA
CONCRETE
POWER VAULT
GRAVEL PATH
LOG DEBRIS
UNDERGROUND SEWER FORCEMAIN LINE
PICNIC TABLE
MEAN HIGHER HIGH ELEVATION (+9')
WETLAND BOUNDARY
ORDINARY HIGH WATER MARK (OHWM)
LEGEND:
DRAFT
Publish Date: 2018/03/06 3:35 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Existing.dwg Figure 3b
Figure 3b
Existing Conditions Plan (2 of 3)
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
40
4
5
50
39
4142
43
4
4
4
6
47
48
4955606570758085909510010511011512012540455
0
37
38 39 4142434446
47
48
49
5
1
ASPHALTROAD
1151201
2
5
12
5
13
0
ACCESS GATE
SANITARY SEWER MANHOLE
ROCKERY
STORM DRAIN CATCH BASIN(TYPE I)
CONIFER
DECIDUOUS
EDGE OF ASPHALT
BNSF RIGHT OF WAY
PROPERTY BOUNDARY
UNDERGROUND STORM LINE
UNDERGROUND SEWER GRAVITY LINE
UNDERGROUND TELEPHONE LINE
UNDERGROUND WATER LINE
UNDERGROUND POWER LINE
FENCING
CONC
P.A.
ABBREVIATIONS:
PLANTED AREA
CONCRETE
POWER VAULT
GRAVEL PATH
LOG DEBRIS
UNDERGROUND SEWER FORCEMAIN LINE
PICNIC TABLE
MEAN HIGHER HIGH ELEVATION (+9')
WETLAND BOUNDARY
ORDINARY HIGH WATER MARK (OHWM)
LEGEND:
DRAFT
0 50
Feet
Publish Date: 2018/03/06 3:35 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Existing.dwg Figure 3c
Figure 3c
Existing Conditions Plan (3 of 3)
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
MATCHLINE - SEE ABOVEMATCHLINE - SEE BELOWFIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
Figure 4 Proposed Project Site Plan Overview Meadowdale Beach Park and Estuary Restoration Project Filepath: \\fuji\anchor\Projects\Snohomish County\Meadowdale Beach Park\Park and Habitat Design\Task 6 Env Review Permitting\Deliverables\Draft Figures\Figure4_Project Site Plan.docx
152
0
25131314161718181819
212223
2410891112121
2 1210108892522 2324152013141
6
171819152
011
12
1314 1617181818
192
1
21
21
2222
2324151520121213131414
1
6 1617171
8
1921222324241010101010
10151520202020888 99
9 1111121213131414161617171818191921211
5
20PUGET SOUND
PICNIC TABLE (TYP)
BENCH (TYP)
8' WIDE
CRUSHED ROCK PATH
10' WIDEASPHALT PATH
40' PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
6' WIDE
CRUSHED ROCK PATH
RESTROOM ENCLOSURE
FOOTWASH AND
LANDSCAPE BOULDER
DRINKING FOUNTAIN
CONCRETE
SEATWALL
10' WIDE
ASPHALT PATH
CONCRETE PLINTH
SWALE
ROCK ARMOR AND RAILROAD BRIDGE
DRAFT
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
Publish Date: 2018/03/06 3:35 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Composite Site Plan.dwg Figure 5a
Figure 5a
Composite Site Plan (1 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
12" BEACH SAND
LARGE WOODY DEBRIS
SNAG
ROCK ARMORING
STREAMBED AND SWALE COBBLES
CRUSHED ROCK PATH OR TRENCH
ASPHALT PATH/PAD
CONCRETE PATH/PAD
PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
PICNIC TABLE
BENCH
RIPARIAN ENHANCEMENT PLANTING
RIPARIAN PLANTING
FRESHWATER WETLAND PLANTING
HIGH TIDAL MARSH PLANTING
LOW TIDAL MARSH PLANTING
BACKSHORE BEACH PLANTING
LAWN
ROCK-LINED SWALE
PROPOSED CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
EXISTING ORDINARY HIGH WATER MARK
EXISTING MEAN HIGHER HIGH ELEV
BNSF RIGHT OF WAY
10
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
NOTE: Wood placements are schematic. Locations
will be determined in final construction documents.
25 303
5
35
3540452223
24
2
6 2
7
2
8 2931323334343436373839 41424344465125222324262728352
5 3035
2
1
21
21
2222
23242626 2627 28
2
9
31
32
3
3
3
4
36
20253021222324242426272829
3132332025 303540
36 37 38 39
4142
LUND'
S
G
U
L
C
H
C
R
E
E
K
PICNIC TABLE (TYP)
BENCH (TYP)
8' WIDE
CRUSHED ROCK PATH
10' WIDEASPHALT PATH
40' PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
6' WIDE
CRUSHED ROCK PATH
RESTROOM ENCLOSURE
DRINKING FOUNTAIN
CONCRETE PLINTH
SWALE
RESTRIPE ADA PARKING STALLS
DRAFT
Publish Date: 2018/03/06 3:35 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Composite Site Plan.dwg Figure 5b
Figure 5b
Composite Site Plan (2 of 3)
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
12" BEACH SAND
LARGE WOODY DEBRIS
SNAG
ROCK ARMORING
STREAMBED AND SWALE COBBLES
CRUSHED ROCK PATH OR TRENCH
ASPHALT PATH/PAD
CONCRETE PATH/PAD
PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
PICNIC TABLE
BENCH
RIPARIAN ENHANCEMENT PLANTING
RIPARIAN PLANTING
FRESHWATER WETLAND PLANTING
HIGH TIDAL MARSH PLANTING
LOW TIDAL MARSH PLANTING
BACKSHORE BEACH PLANTING
LAWN
ROCK-LINED SWALE
PROPOSED CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
EXISTING ORDINARY HIGH WATER MARK
EXISTING MEAN HIGHER HIGH ELEV
BNSF RIGHT OF WAY
10
NOTE: Wood placements are schematic. Locations
will be determined in final construction documents.
40455
0
37
38 39 4142434446
47
48
49
5
1
40
4
5
50
39
4142
43
4
4
4
6
47
48
49
ROAD RESURFACING, REGRADING AND STABILIZATION
ROAD RESURFACING,REGRADING AND
STABILIZATION
DRAFT
0 50
Feet
Publish Date: 2018/03/06 3:35 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Composite Site Plan.dwg Figure 5c
Figure 5c
Composite Site Plan (3 of 3)
HORIZONTAL DATUM:
Washington State Plane
North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
MATCHLINE - SEE ABOVEMATCHLINE - SEE BELOWLEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
ASPHALT
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
PROPOSED CONTOUR10
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
10891112121
2 1210108891010101010
1015152020202015
20
25 25
25
1
4
1
6
17
1717
18
191919
21 22 23 2424 24
26
PUGET SOUND
TW=22.09'
FG/TW=24.17'
BRIDGE DECK
(TOP OF ARCH)
FG=24.75'ABUTMENT
WING WALLS
FFE=22.65'
BRIDGE DECK
FG=24.50'
FG/TW=23.37'FG=23.44'
FG=23.11'
FG/TW=23.03'
FG=10.50'11:14:115:115:14:14.54%2.8
0
%
4%
3.33%
4%4.89%2%5%15%
3:14:115%4:
1
4.54%2%4:11.5%3:14:13.
90%
10
9
12
13
14
17
18
2012
13
14
15
16
17
20
11
10
9
9 1011121314152121
22
15
2311
22251
9
16
262124
18 19
242322
TW=13.00'
BW=11.00'
TW=12.07'
BW=10.07'
PEDESTRIAN EDGE WALL
STORMWATER
TREATMENT
SWALE
SDSDSDSDSTORMWATER PIPE
SEE UTILITY PLAN
FFE=21.65'AA'N
N'HH'J
J'DD'GG'EE'I
I'
M
M'CC'FF'BB'BRIDGE DECK
FG=24.50'
DRAFT
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
NOTE: Wood placements are schematic.
Locations will be determined in final
construction documents.
Publish Date: 2018/03/06 3:36 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Grading.dwg Figure 6a
Figure 6a
Grading Plan (1 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
EXISTING CONTOUR
EXISTING OHWM
PROPOSED MAJOR CONTOUR
PROPOSED MINOR CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
EXISTING MEAN HIGHER HIGH ELEV
BNSF RIGHT OF WAY
CROSS SECTION LOCATION
AND DESIGNATION
10
11
A
Meadowdale Beach Park and Estuary Restoration Project
FIGURE LOCATION KEY
3540
36 37 38 39
4142
5560653531
31
32
323232
33
3334
34
36
25 25
25 30
35404524 24
26 27 28 29 31 3131 32 33 34 3434363738394142434446 47
4849
LUND'
S
G
U
L
C
H
C
R
E
E
K
TW=22.09'
FG/TW=24.17'
BRIDGE DECK
(TOP OF ARCH)
FG=24.75'ABUTMENT
WING WALLS
FFE=22.65'
BRIDGE DECK
FG=24.50'
FG/TW=23.37'FG=23.44'
FG=23.11'
FG/TW=23.03'4.54%4.54%
4.17%3.33%4.89%7.8%
1%1.5%1.5%3.5%1.5%2%5%1%4.54%15.5%
2%
50454021
22
232225 2627
30242928
242322
STORMWATER
TREATMENT
SWALE
SDSDSDSDSDSDSDSDSDSDSDSDSTORMWATER PIPESEE UTILITY PLAN
MATCH EX
G
R
A
D
E
S
UPSLOPE
O
F
T
H
I
S
L
O
C
A
T
I
O
N
FFE=21.65'
N'HH'J'KK'LL'FF'BRIDGE DECK
FG=24.50'
DRAFT
Publish Date: 2018/03/06 3:58 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Grading.dwg Figure 6b
Figure 6b
Grading Plan (2 of 3)
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
EXISTING CONTOUR
EXISTING OHWM
PROPOSED MAJOR CONTOUR
PROPOSED MINOR CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
CROSS SECTION LOCATION
AND DESIGNATION
10
11
A
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
40
4
5
50
39
4142
43
4
4
4
6
47
48
49556065707580859095100105110115120125354045
34
3434363738
39414243 44 46
47
4849
1%
7.
8
%
1%1.5%1.5%3.5%1%15.5%7.8%504540SDSDSD
MATCH EX GRADES
UPSLOPE OF THIS LOCATION
ROAD RESURFACING, REGRADING AND STABILIZATION
1151201
2
5
12
5
13
0
ROAD RESURFACING,
REGRADING AND
STABILIZATION
DRAFT
0 50
Feet
Publish Date: 2018/03/06 3:36 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Grading.dwg Figure 6c
Figure 6c
Grading Plan (3 of 3)
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
MATCHLINE - SEE ABOVEMATCHLINE - SEE BELOWLEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
EXISTING CONTOUR
EXISTING OHWM
PROPOSED MAJOR CONTOUR
PROPOSED MINOR CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
CROSS SECTION LOCATION
AND DESIGNATION
10
11
A
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
0 10 20 30 40 50 60 70 80 90 100 110 120 130130
A A'ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
30
40
0
10
20
30
40
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 145
B B'
BEACH SAND
12"
BEACH SANDROCK
ARMORING
PROPOSED RAILROAD BRIDGE
PROPOSED
CONCRETE PATH
SHEETPILE WALL WITH CONCRETE CAP
SHEETPILE WALL WITH
CONCRETE CAP
STREAMBED
SUBSTRATE
80"
STREAMBED SUBSTRATE
EXISTING GRADE
EXISTING GRADE
PROPOSED GRADE
PROPOSED GRADE
EXISTING BNSF GRADE
AT R.R. TRACKS
PED. EDGEWALL
EXISTING CULVERT
DRAFT
Publish Date: 2018/03/06 3:36 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7a
Figure 7a
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
0 10 20 30 40 50 60 70 80 90 100 110 120 130 136
C C'ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
0 10 20 30 40 50 60 70 80 90 100 110 117
D D'
TYPE 2 TOPSOIL
TYPE 2 TOPSOIL
TYPE 1 TOPSOIL
PROPOSED
STREAMBED
3.5:1
4:1
STREAMBED
SUBSTRATE
STREAMBED
SUBSTRATE
LARGE WOODY DEBRIS
LARGE WOODY DEBRIS
EXISTING GRADE
EXISTING GRADE
PROPOSED
GRADE
PROPOSED GRADE
12" TEMP CREEK BERM (TYP)PED. EDGEWALL
CONC PED
PATH
SHEETPILE WALL WITH CONCRETE CAP
12" TEMP CREEK BERM (TYP)
DRAFT
Publish Date: 2018/03/06 3:36 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7b
Figure 7b
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
NOTE: Wood placements are schematic. Locations
will be determined in final construction documents.
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
10
20
30
10
20
30
0 10 20 30 40 50 60 70 80 90 100 110 120 129
E E'ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
10
20
30
40
10
20
30
40
0 10 20 30 40 50 60 70 80 90 100 110 119
F F'
PROPOSED 40-FT SPAN
PEDESTRIAN BRIDGE
PROPOSED PINNED
FOUNDATION BOARDWALK
PROPOSED
STREAMBED
4:1
20.5:1 22:1
+24.75'
+24.50'CURB WALL
PROPOSED ASPHALT PATH PROPOSED ASPHALT PATH PROPOSED
ASPHALT PATH
BRIDGE ABUTMENT BRIDGE ABUTMENT
EXISTING GRADE
EXISTING GRADE
PROPOSED GRADE
PROPOSED GRADE
CONCRETE PLINTH
STREAMBED SUBSTRATETYPE 1 TOPSOIL
+23.17'
LUND'S GULCH CREEK
DRAFT
Publish Date: 2018/03/06 3:36 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7c
Figure 7c
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
20
30
40
20
30
40
0 10 20 30 40 50 60 70 80 85
H H'ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
0 10 20 30 40 50 60 70 80 90 100101
G G'
TYPE 1 TOPSOIL
TYPE 2 TOPSOIL
6" TYPE 1 TOPSOIL OVER
ON-SITE SALVAGED SANDY SOIL
PROPOSED RESTROOM ENCLOSURE
PROPOSED 6'
CRUSHED GRAVEL PATH
PROPOSED
ASPHALT PATH
PROPOSED 10'
ASPHALT PATH
4:1
WETLAND
2%
2%
WETLAND
EXISTING GRADE
EXISTING
GRADE
PROPOSED GRADE
PROPOSED GRADE
2%
MOW STRIP
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7d
Figure 7d
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
30
0
10
20
30
0 10 20 30 40 50 60 70 80 90 100 107
I I'
PROPOSED RAILROAD BRIDGE
80"
EXISTING GRADE
PROPOSED GRADE CONC PED PATH
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7e
Figure 7e
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
30
0
10
20
30
0 10 20 30 40 50 60 70 80 90 100 110 115
J
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
30
0
10
20
30
115 120 130 140 150 160 170 180 190 200 210 220 230230
J'
50:1
PROPOSED LOW MARSH PROPOSED HIGH MARSH
EXISTING GRADE
PROPOSED GRADE
TYPE 1 TOPSOIL
TYPE 2 TOPSOIL
PROPOSED
ASPHALT PATH
4:1
4:1
PROPOSED HIGH MARSH
25:1
PROPOSED
FRESHWATER
WETLAND
PROPOSED RIPARIAN 2%
EXISTING GRADE
PROPOSED GRADE MATCHLINE - SEE BELOWMATCHLINE - SEE ABOVEDRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7f
Figure 7f
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
NOTE: Wood placements are schematic. Locations
will be determined in final construction documents.
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
20
30
40
20
30
40
0 10 20 30 40 50 60 70 80 90 92
K K'ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
10
20
30
10
20
30
0 10 20 30 40 50 56
L L'
6" TYPE 1 TOPSOIL OVER ON-SITE SALVAGED SANDY SOIL
PROPOSED 6'
CRUSHED GRAVEL PATH PROPOSED 10' ASPHALT PATH
FRESHWATER POND
2%
WET
BIOSWALE
6" TYPE 1 TOPSOIL
SALVAGED COBBLE
LARGE WOODY
DEBRIS
EXISTING GRADE
EXISTING GRADE
PROPOSED GRADE
MOW STRIP
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7g
Figure 7g
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
NOTE: Wood placements are schematic. Locations
will be determined in final construction documents.
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
0 10 20 30 40 50 60 70 80 90
M
ELEVATION IN FEET (MLLW)HORIZONTAL DISTANCE IN FEET - NO VERTICAL EXAGGERATION
0
10
20
0
10
20
90 100 110 120 130 140 150 160 170 180
M'
PROPOSED RAILROAD BRIDGE
STREAMBED SUBSTRATEBEACH SAND
BEACH SAND MATCHLINE - SEE BELOWMATCHLINE - SEE ABOVEDRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7h
Figure 7h
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
PROPOSED
RAILROAD BRIDGE
PROPOSED PEDESTRIAN BRIDGE
PUGET SOUND PROPOSED STREAMBED PROFILE
12" STREAMBED SUBSTRATE
EXISTING GRADE
PROPOSED GRADE
EXISTING STREAMBED PROFILE
LUND'S GULCH CREEK
Elevation in Feet (MLLW)HORIZONTAL DISTANCE IN FEET
5x VERTICAL EXAGGERATION
0
10
20
30
0
10
20
30
0 50 100 150 200 250 300 350 400 450 500 520
N N'
4%
0.6%
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Sections.dwg Figure 7i
Figure 7i
Cross Sections
Meadowdale Beach Park and Estuary Restoration Project
PUGET SOUND
PICNIC TABLE (TYP)
TOPSOIL TYPE 2
TOPSOIL TYPE 1
8' WIDE
CRUSHED ROCK PATH
10' WIDE
ASPHALT PATH
40'
PEDESTRIANBRIDGE
ELEVATED PATH SEGMENT6' WIDE
CRUSHED ROCK PATH
RESTROOM ENCLOSURE
FOOTWASH AND LANDSCAPE BOULDER
DRINKING FOUNTAIN
PEDESTRIAN EDGE WALL
10' WIDE
ASPHALT PATH
BRIDGE ABUTMENT WINGWALLS
CONCRETE
PLINTH
BENCH (TYP)
SHEETPILE WALL
AND CONCRETE CAP
EXISTING PICNIC SHELTER
CURB WALL
10' WIDE
CRUSHED ROCK PATH
ROCK ARMOR AND
RAILROAD BRIDGE
DRAFT
0 50
Feet
HORIZONTAL DATUM: Washington State
Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
NOTE: Wood placements are schematic.
Locations will be determined in final
construction documents.
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Materials.dwg Figure 8a
Figure 8a
Construction Materials Plan (1 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
6" TYPE 1 TOPSOIL
6" TYPE 2 TOPSOIL
6" TYPE 1 TOPSOIL OVER
ON-SITE SALVAGED SANDY SOIL
12" BEACH SAND/GRAVEL
LARGE WOODY DEBRIS
ROCK ARMORING
STREAMBED AND SWALE COBBLES
CRUSHED ROCK PATH OR TRENCH
ASPHALT PATH/PAD
CONCRETE PATH/PAD
PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
EXISTING WETLAND TO BE PROTECTED
SWALE LOG EDGING
CHAIN LINK FENCE
PICNIC TABLE
BENCH
SNAGS
EXISTING OHWM
EXISTING MEAN HIGHER HIGH ELEV
BNSF RIGHT OF WAY
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
LUND'
S
G
U
L
C
H
C
R
E
E
K
6" TYPE 1 TOPSOIL OVERON-SITE SALVAGED SANDY SOIL
PICNIC TABLE (TYP)
8' WIDE
CRUSHED ROCK PATH
10' WIDE
ASPHALT PATH
40'
PEDESTRIANBRIDGE
ELEVATED PATH SEGMENT6' WIDE
CRUSHED ROCK PATH
RESTROOM ENCLOSURE
DRINKING FOUNTAIN
BRIDGE ABUTMENT WINGWALLS
CONCRETE
PLINTH
BENCH (TYP)
EXISTING PICNIC SHELTER
CURB WALL
MOW STRIP
10' WIDE
CRUSHED ROCK PATH
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Materials.dwg Figure 8b
Figure 8b
Construction Materials Plan (2 of 3)
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
NOTE: Wood placements are schematic.
Locations will be determined in final
construction documents.
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
6" TYPE 1 TOPSOIL
6" TYPE 2 TOPSOIL
6" TYPE 1 TOPSOIL OVER
ON-SITE SALVAGED SANDY SOIL
12" BEACH SAND/GRAVEL
LARGE WOODY DEBRIS
ROCK ARMORING
STREAMBED AND SWALE COBBLES
CRUSHED ROCK PATH OR TRENCH
ASPHALT PATH/PAD
CONCRETE PATH/PAD
PEDESTRIAN BRIDGE
ELEVATED PATH SEGMENT
EXISTING WETLAND TO BE PROTECTED
SWALE LOG EDGING
CHAIN LINK FENCE
PICNIC TABLE
BENCH
SNAGS
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
ROAD RESURFACING, REGRADING AND STABILIZATION
ROAD RESURFACING,
REGRADING ANDSTABILIZATION
DRAFT
0 50
Feet
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Materials.dwg Figure 8c
Figure 8c
Construction Materials Plan (3 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
6" TYPE 1 TOPSOIL
ASPHALT
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet
VERTICAL DATUM: NAVD88
MATCHLINE - SEE ABOVEMATCHLINE - SEE BELOWFIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
Lund's Gulch Creek
Puget Sound
Ranger Residence
Picnic Shelter
Restroom Shelter
Pond
Access Road
¬A
¬G
¬H ¬E
¬C
¬D¬F
¬B
[0 200
Feet
LEGEND:
OHWMOHWM BufferSand Lance Spawning
Continuous Eelgrass
Patchy Eelgrass
Wetland
Wetland BufferProject AreaMean Higher High Water (+9')
Publish Date: 2018/02/28, 1:07 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-02\Figure9_wet-stream-nshore_r2.mxd
Figure 9Wetland, Stream, and Nearshore Habitat Existing ConditionsMeadowdale Beach Park and Estuary Restoration Project
SOURCES:Confluence Environmental Company2017 Eelgrass SurveyAnchor QEA 2017 Wetland, Stream,and Marine DelineationWDFW Forage Fish Spawning Data,2003¬A
!
!
!!
!!
!!
Lund's Gulch Creek
Puget Sound
Ranger Residence
Pond
¬A
ADA Access Road
¬G
¬H ¬E
¬C
¬D¬F
¬B
[0 200
Feet
Marine Impact (Enhancement)Stream Impact (Enhancement)Wetland Impact (Fill)Buffer Impact (Enhancement)Buffer Impact (Fill/Paving)
OHWM
OHWM BufferWetlandWetland Buffer
Project AreaMean Higher High Water (+9')Snohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:11 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-02\Figure10_impacts_r2.mxd
Figure 10Marine, Wetland, and Stream Potential Permanent ImpactsMeadowdale Beach Park and Estuary Restoration Project
¬A
Puget Sound
Ranger Residence
Picnic Shelter
Restroom Shelter
Access Road
[0 300
Feet
LEGEND:Inundated by 100-year flooding with velocity hazard (wave action)Outside the 100- and 500-year floodplainsProject AreaSnohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:32 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-01\Figure11_floodplain.mxd
Figure 11Floodplain Existing ConditionsMeadowdale Beach Park and Estuary Restoration Project
SOURCES:FEMA Flood Hazard Areas (1999)obtained from Snohomish County
Puget Sound Ranger ResidencePicnic Shelter
Restroom Shelter
Access Road
[0 300
Feet
Erosion Hazard AreaSevere Erosion Hazard AreaLandslide Hazard AreaSlope < 33%Slope > 33%
Earth Subsidence and Landslide AreaMinimum Buffer Adjacent to HazardProject AreaSnohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:34 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-01\Figure12_geohazard.mxd
Figure 12Geologic Hazards Existing ConditionsMeadowdale Beach Park and Estuary Restoration Project
SOURCES:City of Edmonds and SnohomishCounty
10891112121
2 1210108892522 2324152013141
6
171819152
011
12
1314 1617181818
192
1
21
21
2222
2324151520121213131414
1
6 1617171
8
192122232424152
0
25131314161718181819
212223
241010101010101515202020201
5
2011
11
11
12
12
12
131
4
1
414
1616161616 17
1818181818 191919
21PUGET SOUND
DRAFT
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet.
VERTICAL DATUM: NAVD88
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Planting.dwg Figure 13a
Figure 13a
Planting Plan (1 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
RIPARIAN ENHANCEMENT PLANTING
RIPARIAN PLANTING
FRESHWATER WETLAND PLANTING
HIGH TIDAL MARSH PLANTING
LOW TIDAL MARSH PLANTING
BACKSHORE BEACH PLANTING
LAWN
PROPOSED CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
EXISTING MEAN HIGHER HIGH ELEV
BNSF RIGHT OF WAY
10
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
25222324 2627283540
36 37 38 39
4142
5560653531
31
32
323232
33
3334
34
362
5 3035
2
1
21
21
2222
23242626 2627 28
2
9
31
32
3
3
3
4
36
20253021222324242426272829
313233
25 303
5
35
3540452223
24
2
6 2
7
2
8 2931323334343436373839 4142434446512025301818181818191919212223242627
2727
282
828
292929
31 32 33LUND'
S
G
U
L
C
H
C
R
E
E
K
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Planting.dwg Figure 13b
Figure 13b
Planting Plan (2 of 3)
0 50
Feet
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet.
VERTICAL DATUM: NAVD88
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
RIPARIAN ENHANCEMENT PLANTING
RIPARIAN PLANTING
FRESHWATER WETLAND PLANTING
HIGH TIDAL MARSH PLANTING
LOW TIDAL MARSH PLANTING
BACKSHORE BEACH PLANTING
LAWN
PROPOSED CONTOUR
TREE TO REMAIN
EXISTING WETLAND TO BE PROTECTED
10
FIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
40
4
5
50
39
4142
43
4
4
4
6
47
48
4955606570758085909510010511011512012540455
0
37
38 39 4142434446
47
48
49
5
1
1151201
2
5
12
5
13
0
DRAFT
0 50
Feet
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Planting.dwg Figure 13c
Figure 13c
Planting Plan (3 of 3)
LEGEND:
PROPERTY BOUNDARY
PROJECT BOUNDARY
HORIZONTAL DATUM: Washington
State Plane North, NAD83, U.S. Feet.
VERTICAL DATUM: NAVD88
MATCHLINE - SEE ABOVEMATCHLINE - SEE BELOWFIGURE LOCATION KEY
Meadowdale Beach Park and Estuary Restoration Project
DRAFT
Publish Date: 2018/03/06 3:37 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Planting.dwg Figure 14
Figure 14
Planting Schedule
PLANT SCHEDULE - ALL SPECIES ARE NATIVE TO PUGET SOUND REGION
SYMBOL COMMON NAME SPECIES NAME SIZE SPACING REMARKS
RIPARIAN ENHANCEMENT
TREES
Sitka Spruce Picea sitchensis 5 gal.30' O.C.Evergreen
Western Red Cedar Thuja Plicata 5 gal.30' O.C. Deciduous
Western Hemlock Tsuga heterophylla 5 gal.30' O.C.Evergreen, moist deep soil
RIPARIAN
TREES
Big-leaf Maple Acer macrophyllum 5 gal.12' O.C. Deciduous
Red Alder Alnus rubra 5 gal.12' O.C. Deciduous
Oregon Crabapple Malus fusca 5 gal.12' O.C. Deciduous
Sitka Spruce Picea sitchensis 5 gal.12' O.C.Evergreen
Shore Pine Pinus contorta var. "contorta"5 gal.12' O.C.Evergreen, Full sun
Douglas-Fir Pseudotsuga menziesii 5 gal.12' O.C.Evergreen, Full sun
Hooker Willow Salix hookeriana 5 gal.12' O.C. Deciduous
Scouler Willow Salix scouleriana 5 gal.12' O.C. Deciduous
Western Hemlock Tsuga heterophylla 5 gal.12' O.C.Evergreen, moist deep soil
Western Red Cedar Thuja Plicata 5 gal.12' O.C.Evergreen
SHRUBS
Vine Mape Acer circinatum 2 gal.6' O.C. Deciduous
Saskatoon Serviceberry Amelanchier alnifolia 2 gal.6' O.C. Deciduous
Redosier Dogwood Cornus sericea 2 gal.6' O.C. Deciduous
Beacked Hazelnut Corylus cornuta 2 gal.6' O.C. Deciduous
Oceanspray Holodiscus discolor 2 gal.6' O.C. Deciduous
Tall Oregon Grape Mahonia aquifolium 2 gal.6' O.C.Evergreen
Indian Plum Oemleria cerasiformis 2 gal.6' O.C. Deciduous
Pacific Ninebark Physocarpus capitatus 2 gal.6' O.C. Deciduous
Nootka Rose Rosa nutkana 2 gal.6' O.C. Deciduous
Thimbleberry Rubus parviflorus 2 gal.6' O.C. Deciduous
Red Elderberry Sambucus racemosa 2 gal.6' O.C. Deciduous
Common Snowberry Symphoricarpos albus 2 gal.6' O.C.Deciduous
GROUNDCOVERS
Vanilla-leaf Achlys triphylla 1 gal.4' O.C. Deciduous
Wild Ginger Asarum caudatum 1 gal.4' O.C. Deciduous
Salal Gaultheria shallon 1 gal.4' O.C.Evergreen
Low Oregon Grape Mahonia nervosa 1 gal.4' O.C.Evergreen
Swordfern Polystichum munitum 1 gal.4' O.C.Evergreen
FRESHWATER WETLAND
TREES
Black Hawthorn Crataegus douglasii 5 gal.12' O.C. Deciduous
Hooker Willow Salix hookeriana livestake 3' O.C.Deciduous
Scouler Willow Salix scouleriana livestake 3' O.C. Deciduous
SHRUBS
Redosier Dogwood Cornus sericea 2 gal.6' O.C.Deciduous
Black Twinberry Lonicera involucrata 2 gal.6' O.C. Deciduous
Salmonberry Rubus spectabilis 2 gal.6' O.C. Deciduous
EMERGENT
Slough Sedge Carex obnupta 10-in plug 2' O.C.Deciduous
Darkthroat shooting star Dodecatheon pulchellum 10-in plug 2' O.C.Deciduous
Skunk Cabbage Lysichiton americanus 10-in plug 2' O.C.Deciduous
Small fruited Bulrush Scirpus microcarpus 10-in plug 2' O.C.Deciduous
Hardstem Bulrush Schoenoplectus acutus 10-in plug 2' O.C.Deciduous, Full sun
American Three-square Scirpus americanus 10-in plug 2' O.C.Deciduous
Piggy-back plant Tolmiea menziesii 10-in plug 2' O.C.Deciduous
HIGH TIDAL MARSH
EMERGENT
Douglas Aster Aster subspicatus 10-in plug 2' O.C.Deciduous
Lyngby's Sedge Carex lyngbyei 10-in plug 2' O.C.Deciduous
Tufted Hairgrass Deschampsia cespitosa 10-in plug 2' O.C.Deciduous
Puget Sound Gumweed Grindelia integrifolia 10-in plug 2' O.C.Deciduous
Pacific Silverweed Potentilla anserina ssp. Pacifica 10-in plug 2' O.C.Deciduous
American Three-square Scirpus americanus 10-in plug 2' O.C.Deciduous
Henderson's Checker-bloom Sidalcea hendersonii 10-in plug 2' O.C.Deciduous
LOW TIDAL MARSH
EMERGENT
Lyngby's Sedge Carex lyngbyei 10-in plug 2' O.C.Deciduous
Pacific Silverweed Potentilla anserina ssp. Pacifica 10-in plug 2' O.C.Deciduous
BACKSHORE BEACH
EMERGENT
Coastal sand verbena Abronia latifolia 10-in plug 2' O.C.Deciduous
Sea thrift Armeria maritima 10-in plug 2' O.C.Deciduous
Coastal Strawberry Fragaria chiloensis 10-in plug 2' O.C.Evergreen
Puget Sound Gumweed Grindelia integrifolia 10-in plug 2' O.C.Deciduous
Dunegrass Leymus mollis 10-in plug 2' O.C.Deciduous
LAWN
ECO TURF See Specifications Seed
Meadowdale Beach Park and Estuary Restoration Project
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Publish Date: 2018/03/06 3:38 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Arch-Elevation.dwg Figure 15
Figure 15
Restroom Enclosure
Meadowdale Beach Park and Estuary Restoration Project
Lund's Gulch Creek
Puget Sound
Ranger Residence
ADA Access Road
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¬H ¬E
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¬D¬F
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[0 200
Feet
LEGEND:Temporary Water DiversionTemporary Work PadsLaydown AreaTemporary Staging and Stockpile Area
OHWMOHWM BufferWetlandWetland Buffer
Project AreaMean Higher High Water (+9')Snohomish County / City of Edmonds Boundary
Publish Date: 2018/02/28, 1:35 PM | User: bsevertsenFilepath: Q:\Jobs\SnohomishCounty_0723\MeadowdaleBeachPark\Maps\2018-02\Figure16_Temp_elements_r1.mxd
Figure 16Construction ElementsMeadowdale Beach Park and Estuary Restoration Project
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Publish Date: 2018/03/06 3:38 PM | User: tgriga
Filepath: K:\Projects\0723-Snohomish County\Meadowdale Park\Permits\0723-RP-Arch-Elevation.dwg Figure 17
DRAFT
Figure 17
Haul Route
Meadowdale Beach Park and Estuary Restoration Project
Project Area
Anticipated Haul Route for
Meadowdale Beach Park Project
SOURCE:
City of Edmonds Comprehensive Transportation
Plan, June 2015.
Proposed Haul Route
Attachment 2
Construction Methods
Construction Methods A2-1 July 2018
CONSTRUCTION METHODS
To complete the work, the existing limited-access road into the park would be used for delivery of
construction equipment and materials and for removing excess excavated soils for the railroad bridge
replacement and estuary restoration. Rail access may be used for delivery of some equipment and
materials, pending additional discussions with BNSF and future contractor selection.
The general construction sequence is anticipated as follows:
1.Improve access road for construction
2.Deliver equipment and materials
3.Provide diversion for creek
4.Install temporary work pads adjacent to the railroad bridge
5.Replace culvert with railroad bridge
6.Remove temporary work pads
7.Excavate railroad berm under new bridge to proposed estuary subgrade, stockpile, and haul
8.Excavate area east and west of railroad berm for estuary, stockpile, and haul
9.Install new pedestrian bridge
10.Conduct final material placement, park restoration and improvements, and planting at beach
area, estuary, and riparian buffer
11.Install permanent stormwater/drainage and other utility improvements
12.Finish access road repaving
In-water construction work would be planned to accommodate work windows for fish species as
determined by the Corps, WDFW, USFWS, and NOAA Fisheries. Work windows include July 1 to
October 1 for anadromous fish species and March to July for sand lance. Work adjacent to the beach
would be within the 100-year floodplain.
Railroad Bridge, Estuary, and Beach Construction Methods
During the approved in-water work window, a temporary diversion would be created at the upstream
portion of Lund’s Gulch Creek. The diversion would involve the placement of multiple 36-inch-diameter
corrugated metal pipe culverts, along with sandbags to divert creek flow into the pipe. The pipes would
be routed to the beach area, where they would extended as far into the water as practicable, and the
discharge would be dispersed. This diversion would allow for stream work to be conducted in the dry
and minimize potential impacts to water quality.
With the stream diversion in place, the beach area adjacent to the railroad bridge would be temporarily
graded to accommodate the temporary work areas needed for railroad bridge construction. Streambed
substrate would be removed and salvaged. Temporary work areas would be established as follows:
•Temporary work pads consisting of quarry spalls capped with crushed surfacing base course
would likely be required on both the beach and lawn sides of the railroad tracks. Thesetemporary work pads would be approximately 30 feet wide along the length of the new railroad
Construction Methods A2-2 July 2018
bridge alignment and a 50- by 50-foot section would be brought up to the rail elevation would be required south of the proposed bridge location on the beach side of the embankment.
•Laydown areas in a 30-foot boundary on both sides of the temporary work pads would also berequired for staging bridge components.
•A temporary staging and stockpile area on the lower lawn area where the estuary is proposed
would be needed during railroad bridge construction.
•A second temporary staging and stockpile area for equipment and material would also likely be
needed on the upper lawn (outside of existing wetlands) during estuary construction.
Railroad bridge construction would be sequenced to maintain live track conditions throughout
construction, and the bridge would be constructed one track at a time. All work associated with the
railroad bridge would be coordinated with BNSF. Temporary shoring would be installed between the
tracks to allow excavation during construction of the first half of the bridge. Temporary shoring may be
continuous sheetpile wall or driven H-piles with steel sheet lagging, depending on the contractor’s
preference. Steel H-pile bridge foundations would be driven during BNSF work windows. The remainder
of the bridge would be constructed using BNSF standard precast concrete components that meet
applicable Federal Railroad Administration, American Railway Engineering and Maintenance-of-Way
Association, or internal BNSF requirements.
Approximately 2,000 cy of existing railroad embankment material (sand and rock of varying size) would
be removed using an excavator. The excavated embankment material is assumed to require disposal at
an approved off-site upland facility. The existing box culvert would be removed using a rubber tire crane
and excavator. Any concrete debris would be hauled off site and disposed of at an approved upland site.
A rock curtain would be installed at the northern bridge abutment. A gravity block wall would be
installed and backfilled on the south end of the bridge instead of a rock curtain wall to support the
embankment and accommodate the pedestrian path proposed to go under the new railroad bridge.
Perforated pipe would be installed to drain water from the gravity block wall, and 245 feet of chain-link
fence would be installed along the pperimeter of the BNSF right-of-way.
Once the railroad bridge is constructed and the regulatory work window opens for the marine
environment, the new channel would be graded out into the estuary and the beach area would be
regraded to support the widened creek mouth. The beach area would be restored with sand substrate
and revegetated with backshore/supratidal vegetation.
Grading of the new channel and estuary areas would occur during low tide cycles, using machinery.
Machinery would not be allowed to enter the water, to minimize disturbance to sediment in the estuary
and the potential for leaks or spills of hazardous materials. The estuary tidal marsh restoration would
include excavation of nearly 17,000 cy of material landward of the railroad (excluding the berm removal
for the railroad bridge). Excavation in the estuary area may require management of groundwater near
the surface depending on conditions at the time of construction.
Construction Methods A2-3 July 2018
Estuary excavation would require removal of at least 40 trees. Material placement within the pocket
estuary would include gravel/cobble streambed substrate, sand/gravel fish mix substrate, beach sand,
and topsoil for wetland plants. All removed trees would be used as large woody materials (approximately
19 uncut logs with rootwads and 34 cut logs of rootwads or tree tops) or reinstalled as snag features
(10 features) within riparian planting areas. Twelve of the largest woody debris pieces would be placed
within the pocket estuary, with an additional 15 pieces placed near the bridge abutments; 22 medium-
size pieces would be located within the existing stream channel, and 4 within the restored pond. These
large wood features would provide additional habitat structure and complexity, providing pools and
slow-water habitat that is supportive to juvenile salmonids. Eight snag features would be installed north
of the existing creek channel and two south of the creek; all snags would be located within riparian
habitat areas as habitat for cavity-nesting birds. The estuary and riparian areas would be revegetated
with native vegetation.
Park Uplands Construction Methods
Upland Demolition
Upland demolition and removal of park features would occur from land and would include removal of
the restroom enclosure, site furnishings, volleyball court, lower creek bank armoring, select trees, and
lawn, ornamental, and invasive vegetation. Best management practices would be employed during
proposed demolition work to address potential erosion or hazardous material spills. All debris from
upland demolition would be collected and disposed of at an approved upland site.
Site Grading Grading would be performed using typical equipment including dump trucks, front-end loaders,
backhoes, and/or tracked excavators. Imported sand, habitat gravel, topsoil, or other substrate materials
would be brought to the site using dump trucks. Materials would be placed using either a backhoe or
tracked excavator for rock and a tracked excavator or a front-end loader and bulldozer for beach gravel.
Materials would be placed in the dry.
Park Paths and Pedestrian Bridge Park recreation paths would primarily consist of asphalt trails within the site as shown in the figures in
Attachment 1. Base and top course would be imported to build these features, and material would be
placed using a tracked excavator or a front-end loader and bulldozer. The recreation paths would also
include a pedestrian bridge and a 40-foot-long elevated path segment.
Construction of the pedestrian bridge would involve land-based equipment. Concrete footers would be
formed at the site. The pre-fabricated bridge would be delivered via truck, and would be assembled
using a crane. The south end of the pedestrian bridge would connect to the elevated path segment.
The elevated path segment would consist of a 6-foot-wide ADA-compliant trail with fiberglass grating
for the decking, elevated a minimum of 1.5 foot above the existing grade by a substructure and
foundation. Foundations and substructure would consist of diamond pier-supported foundations with
Construction Methods A2-4 July 2018
treated timber posts, cross beams, and joists. Substructure members (beam, joists, etc.) would only be in
contact with foundations, not the soil, water, or sediments. Diamond pier foundations would consist of
pre-cast concrete pier heads that secure clusters of four steel pipe bearing pins. Light construction
equipment and hand tools would be used to install the elevated path segment.
Restroom Enclosure, Picnic Shelter Updates, and Site Furnishings
The restroom enclosure (Figure 15) would primarily consist of a concrete pad and footings, steel
columns, log beams, and laser-cut steel panels for the surround. The roof would be standing seam metal.
To install the restroom enclosure, a concrete pad with board-formed concrete upstands would be placed
using a cement truck and hand tools. Steel columns would be installed into the concrete upstands and
the steel panels welded to them. Peeled log beams would be installed with bracket hardware to the steel
columns, with cedar rafters resting on the log beams. The standing-seam metal roof system would
consist of plywood sheathing on the rafters, a weather resistive barrier, flashing as needed, and the
standing-seam metal roofing panels. The portable restroom units would be installed within the restroom
enclosure and maintained by a portable restroom service.
The existing stone cladding at the base of the picnic shelter columns would be removed and replaced
with a laser-cut steel surround, similar to the restroom enclosure, and a new concrete cap. There would
be no change to the existing structure of the picnic shelter, and the existing roof sheathing would
remain; only the roofing material would be replaced with new panels to match the adjacent restroom
enclosure.
Site furnishings, including picnic tables and a foot wash and drinking fountain, would be surface-mount
installed based on manufacturers’ instructions, on concrete pads in the locations shown on the figures in
Attachment 1.
Planting and Habitat Restoration/Enhancement
Native plants would be placed in the riparian buffer and all areas of exposed soil based on the planting
plan (Figures 13 and 14). The existing freshwater pond feature in this area would be enhanced by placing
salvaged streambed cobbles to provide shallow water habitat, placing large woody material for added
structure, and planting the banks with riparian vegetation. Woody plantings would include a riparian
fringe around the pocket estuary, as well as enhancing existing riparian areas with conifer interplanting
along Lund’s Gulch Creek. Park restoration and plantings would be timed to be initiated once all grading
is complete. Temporary irrigation (2- to 5-year operation) would be installed to support new riparian
planting areas.
Road Access, Parking, and Drainage Improvements Construction Methods
The limited-access road would be improved by the contractor at the start of construction to establish a
minimum longitudinal slope of 15% to allow for equipment and materials access. Access road downhill
shoulder reinforcement would be provided where necessary by installing soil nails (spiral nail
reinforcement). The access road would be resurfaced with new asphalt paving near the end of project
Construction Methods A2-5 July 2018
construction. Standard grading equipment would be used. Engineered fill and base course would be
imported to establish the road bed where grading changes would occur. The existing lower parking area
would be restriped to provide parking that meets current Snohomish County Code requirements and to
accommodate an additional ADA-compliant parking stall.
The paved swale along the existing roadway would be replaced with a rock-lined drainage swale installed
over a flexible impermeable liner. Catch-basin inlets and storm drains would be added at the bottom of
the roadway and in the ADA parking area, along with stormwater conveyance to a wet biofiltration swale.
The biofiltration swale would be installed along the toe of the slope adjacent to the pathway near the
picnic shelter and restroom enclosure, and stormwater pipe would be installed from the biofiltration
swale under the paved recreation path to a cobble-lined swale outletting in the restored estuary at the
MHHW line. Stormwater runoff from paved pathways would sheet flow to adjacent landscaping for
dispersal. Runoff from building roofs would be discharged to existing roof drain systems or to adjacent
landscaping for dispersal.