1410 SEINER DR FISHERMAN JACKS 2025-08-21

WATERFRONT PLACE CENTRAL A17 PROJECT SITE — HH SUMMARY PORT OF EVERETT — PSA 1-2015-005 PND No. 154016 — 017.01 INTRODUCTION The document is intended to provide a supplemental summary of the proposed A8 project site drainage as it applies to the Irlaterfront Place Central (tiYlPC) Fisherman's Harbor— Hydrologic and Hydraulic Keport (2016 —POE HH Report), as prepared by PND Engineers in October 2016. 1. PROJECT DESCRIPTION The A8 Restaurant Building and Esplanade Wall project site is located within the Fisherman's Harbor District which is part of the greater WPC development. The project includes construction of a new restaurant building, approximately 6,000 square feet in size, and constructed to a "gray shell" finish. Utility connections extended to the building, metal and wood siding, and interior walls to be unfinished and without a concrete slab for flooring. Tenant improvement work will be conducted by two future tenants after this Contract is complete. Site improvements around the building include a concrete courtyard/eating space, two-way outdoor fireplace, landscaping, new sidewalk, lighting and new public access connection between Seiner Drive and the Esplanade. Additionally, a new concrete wall will be constructed running north -south along the east side of the current Fisherman's Harbor esplanade for over 500 feet. This concrete wall provides sitting benches and landscaping and serves as a separation point between the restaurant outdoor dining and pedestrians using the Port's public trail system. see attachment 3. 2. STORMWATER MANAGEMENT The A8 project site has progressed in detail significantly from the 2016 - POE HH Report, with project site consisting of four sub -drainage basins. A detailed basin summary map is provided in Attachment 1. • Sub -Basin 1 — Consists of 7,475 SF of new hardscape/landscaping and is non -pollution generating surfaces (Non-PGIS). Drainage from this sub -basin will drain to the landscaping on the western edge of the A8 parcel where it will be infiltrated into the landscaping or released to directly to the Central Marina Basin. • Sub -Basin 2 — Consists of 2,887 SF of new landscaping/wall features and is non -pollution generating (Non-PGIS). Drainage from this sub -basin will drain to the landscaping on the western edge of the Esplanade Wall where it will be infiltrated into the landscaping or released to directly to the Central Marina Basin. • Sub -Basin 3 — Consists of 8,448 SF of new building roof and is to be collected and discharged to the existing private stormwater system Fisherman's Harbor A (FHA). • Sub -Basin 4 — Consists of 3039 SF of new hardscape/landscaping and is non -pollution generating surfaces (Non-PGIS). Drainage from this sub -basin will discharge to the east to Seiner Drive where it is collected, conveyed and treated withing the existing FHA stormwater system. 3. IMPACTS ON THE FHA STORMWATER SYSTEM The 2016 - POE HH Report delineated 25 separate sub -basins that contribute surface runoff to the FHA stormwater system totaling 6.38 acres of tributary area. Sub -basin A14 from the 2016 analysis accounted for .257 acres be tributary to the FHA system. • Sub -Basin 1 and 2 drain west and either discharge to new landscaping ground cover or directly to the Central Marina basin. Therefore, they do not affect the existing stormwater system FHA. P JINJIDI