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2017-06-22 EWF.BLA.Pre-App Document.pdfALBarker Landscape Architects, P.S. 300268 th Ave Seattle, WA 98117 B A R K E R (206) 783-2870 LANDSCAPE ARCHM.CrS,P.S. barkerla.com Edmonds Waterfront Re -development Re: Option 2 Development Review Committee Meeting PRE-APP SUBMITTAL PACKAGE CONTENTS: 1. City of Edmond Pre-App Form 2. Plan sheets: a. L1_EWF Cover Sheet b. L2_EWF Survey c. L3.EWF.Site Plan.Overall Date: 06/22/17 Meeting Location: Edmonds Permitting 3. Draft Cultural Resources Monitoring and Discovery Plan (MDP for Edmonds Senior Center 5-30-17) PROJECT CALCS: 1. Project Area: 71,145 SF 2. Building square footage (roof area): 17,250 SF 3. Impervious surface area: a. Parking lot: 23,358 SF b. Concrete promenade/plazas/sidewalks: 11,210 SF 4. Landscape area: 8,980 SF PROJECT DESCRIPTION The City of Edmonds (City) is proposing to redevelop their central waterfront at the current Senior Center, including replacement of the Senior Center, removal of the parking structure over the beach, beach restoration and the construction of a walkway connector, new plaza and parking lot at the Senior Center, and a new connecting walkway on the beach in front of the Ebb Tide condominium building within a City easement for public access to the promenade to the south. The design team is led by Parks Director Carrie Hite and Capital Project Manager Henry Schroder, and the Senior Center staff. The design team members are preparing surveys, soil and cultural studies, design plans, presentation graphics, permit applications and supporting documents for this design, which will be used to assemble permit applications in 2017, for review and approval by the City, and to advertise for construction of the project construction in 2018. Design for the Ebbticle and Waterfront Center began in September 2015 the City began design and environmental permitting of the project. Pre -application meetings have been held with the City and the US Army Corps of Engineers (USACE) in 2015, several team meetings in 2016, and Page 1 of 4 Print Date: 6/22/2017 4:58 PM ALBarker Landscape Architects, P.S. 300268 th Ave Seattle, WA 98117 B A R K E R (206) 783-2870 LANDSCAPE ARCHM.CrS,P.S. barkerla.com an evaluation of City of Edmonds environmental permitting requirements. The Team also met with city and senior center staff and the Tulalip Tribal Respresentative along with WDFW on June 19, 2017. The project area contains historical fill overlying historical interticlal deposits and naturally deposited beach sediment. No cultural materials were observed in the samples collected from the beach stratum at the base of the stratigraphic sequence. The historical interticlal deposits between 5.8 and 10 feet below the surface contain scattered historical artifacts, such as metal fragments, bricks, and millwaste, but do not appear to contain significant historical cultural resources. In general, the historical fill is 5.4 feet to over 11.5 feet thick. There is heightened potential for encountering historical archaeological resources in the fill between about 5 and 6 fbs across the project area, where solid -cored wood, bricks, and historical cultural debris indicate structural remnants of the mills and buildings once in the project area may be present plan to recommend targeted archaeological monitoring of construction with contingency for additional archaeological investigations in these areas should any of the planned excavations reach that deep. Geotechnical & Archaeological Investigations: Following is a brief summary of the field exploration program and some preliminary information that might be helpful: a. 7 borings were advanced, each to a depth of 11.5 ft below the ground surface (bgs) and 1 boring to a depth of 36.5 ft bgs. b. A concrete slab was encountered beneath the asphalt concrete pavement section in half of the borings. c. At the locations explored, groundwater was observed at depths of 6 to 7 ft bgs at the time drilling d. At the locations explored, the upper 10 ft or so of the soil at the project site typically consists of sand with varying amounts of silt. A fair amount of the sand is clean, and above the groundwater table, this sand should have a favorable infiltration rate. e. Some of the borings encountered pockets of peat -like material that might be associated withsawdust generated by previous saw mills in the project area. f. The deep boring (advanced in the vicinity of the proposed bulkhead) encountered dense native soil between the depths of about 15 and 36.5 ft bgs. This soil should provide adequate support for the proposed bulkhead. The following permits are anticipated� JARPA, Section 10 Nationwide permit, Shoreline Conditional Use Permit, Grading Permits, Building Permits. The necessary environmental permits are anticipated based on the following assumptions. All project elements will be permitted together as one Federal project with two separate phases for work that is vulnerable to appeal- Phase 1 includes redevelopment of the Senior Center, the parking lot, and bulkhead removal/beach restoration; Phase 2 includes the Ebb Tide Walkway. USACE will be the lead federal agency. Page 2 of 4 Print Date: 6/22/2017 4:58 PM ALBarker Landscape Architects, P.S. 300268 th Ave Seattle, WA 98117 B A R K E R (206) 783-2870 LANDSCAPE ARCHM.CrS,P.S. barkerla.com Any interticlal eelgrass beds will not be impacted by project actions Proposed bulkhead/steps and stormwater outfall(s) will be located waterward of the mean higher high water (MHHW) elevation of Puget Sound. No excavation of hazardous materials will occur waterward of MHHW elevation. No excavation will occur in undisturbed native soil 0 Project will comply with Washington Department of Natural Resources guidelines for pile removal. 0 Excavation waterward of MHHW elevation will occur with equipment positioned on uplands. M Construction staging will occur landward of MHHW elevation, with the exception of the Ebb Tide Walkway, which may be constructed by barge. 0 Project will comply with current Washington State Department of Ecology (Ecology) stormwater manual requirements. 0 Project will be constructed on property owned or on an easement held by the City of Edmonds. Ebb Tide Walkway will be constructed waterward of the MHHW elevation. Project will be permitted under a Section 10 Nationwide permit and will not require an Individual permit. The project will not require an Individual Section 401 Water Quality Certification. The beach restoration element of the project will be mitigation for permanent impacts associated with the Ebb Tide Walkway construction. No off -site mitigation will be required. PROJECT QUESTIONS: 1. Promenade: Building code/accessibility requirements for any new sections of seawall, staircases, railings, ramps b. Are there any city standard details/standards we should follow to support safe pedestrian circulation arounclDoes the city have a standard detail for Edmonds Waterfront Center: a. Will two interior open stairs be allowable in the current code? b. Confirming code understanding that both interior stairs can be unenclosed c. Confirm hydrant locations -any additional ones required? d. Preferred location on fire department connection Exterior access to the fire sprinkler room required? 3. Raised Walkway at Ebb Tide: a. Building code/accessibility requirements for raised curbs and grating. We are proposing a 48" wide walkway with 12" tall x 36" wide Seawall/Seatwall, per Leif's direction. Is this design acceptable? b. Can new staircase south of walkway be rebuilt to the same standards as the existing one? 4. Parking Lot: Page 3 of 4 Print Date: 6/22/2017 4:58 PM ALBarker Landscape Architects, P.S. 300268 th Ave Seattle, WA 98117 B A R K E R (206) 783-2870 LANDSCAPE ARCHM.CrS,P.S. barkerla.com With appropriate signage and pavement markings indicating one-way circulation, can the driveway entrance/exit be 20' wide? Enclosure and location requirements for transformers and clumpsters. Frontage: a. Confirm that we are meeting street improvement requirements b. Can we locate the sidewalk on the parking lot (West side) of the streetscape planter strips and design the grading such that run-off can still travel across the sidewa I k(th rough trench drains) and into the bioretention planters? 6. Planting requirements: a. Are there acceptable tree species that can be planted in the project's viewshed corridor? What is the height limit for any view corridor trees/shrubs? 7. Are there any City Standards/Codes currently underdevelopment, which will apply to this project once they are complete? 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