Stormwater Park North

This project consists of a detached remnant shoreline forest that includes the impervious slabs of now demolished out-buildings of a defunct plywood mill. The hillside forest is dominated by bigleaf maple, red alder and some second-growth Douglas fir. This area presents a meaningful opportunity to address water quality issues with green infrastructure and forest restoration. The objectives for this project are to install neighborhood-scale green infrastructure to treat 2.24 ac-ft/day (730,000 gallons/day) of urban runoff that flows directly into Budd Inlet and to create a publicly-accessible community space that supports education, recreation, and art. This overall project will consist of three phases.

Phase 1: Installation of a hydrodynamic separator to remove sediment and other macro-pollutants from the stormwater, and a flow control structure to divert 40% of the pre-treated stormwater into a constructed 13,000 sq ft wetland, which will improve water quality through infiltration, aeration, and vegetative uptake.


Phase 2: Installation of a compact engineered filtration unit to treat remaining 60% of peak flows by immobilizing and volatilizing pollutants, including nutrients, metals, and hydrocarbons.


Phase 3: Construction of an elevated public boardwalk with water-themed art installations to align with the City of Olympia’s Comprehensive Plan and to create a sense of place with themed ‘Gateways’ throughout the city.



Other West Bay Woods Locations

Stormwater Park South

West Bay Park Connector

All Preserves

Deschutes river Preserve

Green Cove Creek

Cooper Crest Forest

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