bld20100657-Scotts-E1.pdf
DATE: October 19, 2010
TO: Craig Hanway
chanway@cads-inc.com
FROM: Jeanie McConnell, Engineering Program Manager
RE: Application #: bld20100657
Project: Scotts Bar & Grill Outdoor Seating & Parking Lot Expansion
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Project Address: 8115 Lake Ballinger Way / 8115 244 St SW
During review of the above noted application, it was found that the following information,
corrections, or clarifications are needed. Please redline plans or submit three (3) sets of revised
plans/documents with a written response to each of the items below to Theresa Umbaugh.
City of Edmonds handouts, standard details and development code can be referenced on the City
website.
GENERAL
1.Please provide an itemized cost estimate, including units and unit prices.
As no right-of-way improvements are proposed, a performance bond will not be required
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from the Engineering Division for the subject proposal.
Inspection fees for this project will be calculated at 2.2% of the 120% City approved
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estimate for all improvements.
2.Please revise City of Edmonds approval block on all civil plan sheets to state City Engineering
Division instead of City Engineer.
3.Please submit a traffic impact analysis that shows payment of mitigation fees for the additional
restaurant area. Refer to city handout E82 for additional information.
SHEET A1-SITE PLAN
1.Parking stall width should be called out as 8.5(typical).
STORM DRAINAGE REPORT
The following comments are provided by Jerry Shuster, Stormwater Engineer, in review of the
drainage report and civil plans prepared by JRR Engineering and dated 9/8/2010 & 9/9/2010
respectively.
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1.Site Classification: The report should include a discussion how the site was categorized per
Edmonds Community Development Code (ECDC) Chapter 18.30 and the Stormwater
Supplement (See Engineering Handout E72 for more information). This information should
include the amount of land disturbing activity and a detailed accounting of the new impervious
surface. Once categorized, each applicable minimum requirement per the Edmonds Stormwater
code Supplement should be identified and a discussion on how this design complies with each
requirements should be included.
2.Minimum Requirement#6, Runoff Treatment - The presented information in the report does not
show compliance with the Edmonds Stormwater Code Supplement Sections 5.6.2.1 (oil control)
and 5.6.2.2 (phosphorus treatment) (assuming the site has 5,000 sf or more of pollution
generating impervious surface - please verify this assumption). Rethink the approach to water
quality to comply with these sections of the Edmonds Stormwater Code Supplement, if
applicable.
3.Minimum Requirement #7, Flow Control - The allowable discharge rates for this
site assumes the pervious areas on site have compost-amended soils per the 2005 SWMMW.
Include this in the plans for all disturbed pervious areas . Also, if areas are bypassing the flow
control facility, include the areas and show what areas are being substituted for these bypassed
areas.
4.Runoff Modeling and Detention System Sizing- Section 5.7.3.1 of the Edmonds Stormwater
Code Supplement lists the approved continuous runoff models. KCRTS V4.4.2 used in the
Report is not one of the approved runoff models; only WWHM3 or MGS Flood are accepted
using the "Puget Sound East" precipitation time series.
5.The conveyance calculations on page C-12 of the Drainage Report are difficult to follow. It is
unclear which of the 6 pipes on the sheet C-3 are described in the table. Include CB#'s "From"
and "To" to make this table clearer.
SHEET C-1 DEMOLITION & EROSION CONTROL PLAN
1.Please revise the Construction Sequence as follows:
a.Move the utility locate note to its own line and revise to read: Call one call at 1-800-
424-5555 for utility locates.
b.Revise Note #9 to read: Remove TESC measures once site has been permanently
stabilized and as approved by the City inspector.
2.Clearly identify the limits of disturbance/clearing for the entire project area.
3.There is a significant amount of information provided on this plan sheet, which is making it
difficult to pick out the pertinent details. Would it be possible to lighten the survey information
and bold or cloud the erosion control notes?
4.Identify tree removal and retention consistent with landscape plan.
5.Indicate tree protection measures, to be installed at drip line.
6.The impervious area calculations only identify the improvement area. Please revise to include
the total improvement area (pervious & impervious). In addition, please incorporate the
impervious area table provided in handout E72 into the plan sheet.
bld20100657-Scotts-E1 Page 2 of 4
SHEET C-2 DETAILS
1.Please note on which sheets the details apply within the plan set.
SHEET C-3 GRADING, DRAINAGE & CIVIL SITE PLAN
1.Please revise the detention pipe elevation view to include the following:
a.Storm filter #2 elevation
b.Show polypropylene ladder rungs within the manhole structures
c.Add note that shear gate handle shall hang on the ladder rung when shear gate is in the
closed position.
2.Revise the location of the retaining walls and rockeries to be consistent with what is shown on
the site plan and landscape plan.
3.More clearly identify the detention pipe sections in plan view. As noted above under Sheet C-1,
maybe the survey information could be lightened and the pertinent information clouded or bold.
4.Revise the Drainage System Information as follows:
a.CB#6- revise to include inlet from the storm filter basin.
b.CB#7 indicates connection of a rockery drain, which should bypass the detention system.
See also, note #8 below. Please revise accordingly.
c.Please indicate where Ex. CB#3 is shown in plan view.
d.Ex. CB#2 indicates an 8 outfall to the west, but the outfall has not been shown in plan
view. Where does this pipe connect to the storm system? See also, note #9 below.
5.Include a copy of Sheet A1 with the civil plans, as reference only, for parking lot striping and
layout.
6.Slopes within the parking lot are in excess of the 6 percent allowed by code. Pursuant to ECDC
18.95.020 the city engineer may waive the maximum slope requirement, up to a maximum of 14
%, if the applicant can demonstrate that an increase in the slope maximum will not result in
conditions that may pose a hazard or otherwise endanger the publics health, safety or welfare.
Any request for waiver should address the criteria for approval provided in the code section.
7.Clearly specify new areas of curb to be constructed and reference extruded curb detail as
applicable.
8.The plans indicate connection of a 4 PVC drain pipe from a retaining wall in the NW part of
the site draining to the detention system. All drains from retaining walls or footing drains
must be connected to the downstream of the site's proposed detention system.
9.This sheet does not show the the storm drainage piping all the way to the connection with the
City System on 244th St SW, but should.
SHEET C-4 UTILITY PLAN
1.Revise plan sheet to show how Ex. CB#2 connects to the on-site storm drainage system and on
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out to the City storm system in 244.
SHEET C-5 DETAILS
1.Please note on which sheet the access/driveway detail applies in the plan set. The proposed
driveway and parking lot areas do not show continuous slope to one side of the access aisle.
Please revise accordingly.
bld20100657-Scotts-E1 Page 3 of 4
SHEET C-6 NOTES
1.Revise General Note #3. Delete the last sentence discussing field changes and asbuilts and
replace with separate line items as follows:
a.
DEVIATIONS FROM THESE PLANS MUST BE APPROVED BY THE ENGINEER OF
RECORD AND THE LOCAL GOVERNING AUTHORITY.
b.
CONTRACTOR SHALL RECORD ALL APPROVED DEVIATIONS FROM THESE PLANS
ON A SET OF "AS-BUILT" DRAWINGS AND SHALL SUMMARIZE ALL AS-BUILT
CONDITIONS ON ONE SET OF REPRODUCIBLE DRAWINGS FOR SUBMITTAL TO
THE OWNER PRIOR PROJECT COMPLETION AND ACCEPTANCE. A SET OF AS-
BUILT DRAWINGS SHALL BE SUBMITTED TO THE CITY OF EDMONDS PRIOR TO
FINAL APPROVAL OF THE BUILDING OCCUPANCY/FINAL PROJECT APPROVAL.
2.The Water Distribution notes do not appear to be applicable to this project.
3.Please remove City of Edmonds code (18.30.050) notes from the plan set. A new stormwater
code has been adopted and therefore these verbatim notes can no longer be found in the code.
Please contact me at 425-771-0220 or by e-mail at mcconnell@ci.edmonds.wa.us if you have
specific questions regarding these plan corrections.
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