A firm can offer no better qualifications than successfully completed projects of a relevant nature. The majority of HWA’s experience comes from its wide range of public works projects. These projects have included buildings, waterfront structures, parks and recreational facilities, roadways, highways, bridges, tunnels, water systems, sewer and stormwater systems, dams, and solid and hazardous waste facilities. Below is a selected listing of representative projects.



Hazardous Waste
240th St SE Bridge Replacement
Bothell, Washington York Bridge Replacement
Redmond, Washington Fairview Ave Bridge Replacement
Seattle, Washington Broadway Bridge Replacement
Everett, Washington
Tacoma Dome Station
Tacoma, WashingtonUSAID Annex
Conakry, Republic of GuineaSavery Hall Renovation
University of Washington, Seattle, Washington
Tacoma Dome Station
Tacoma, WashingtonBothell Crossroads
Bothell, WashingtonEast Marine View Drive
Everett, Washington

Parks and Recreation

Pedestrian Bridges

Solid Waste
North Creek Trail
Bothell to Everett, Washington Riverview Park Master Plan
Kent, Washington
Weller St Pedestrian Bridge
Seattle, Washington 44th Ave Pedestrian Bridge
Lynnwood, Washington Quileute Indian Reservation, Observation Deck/Pedestrian Bridge
LaPush, Washington
Bow Lake Recycling/Transfer Station
Tukwila, Washington Everett Landfill Study/Monitoring
Everett, Washington Indian Road Quarry Dump Site
Skagit County, Washington

Surface/Storm Water


SW 142nd St & 6th Ave SW Environmental Investigation & Infiltration Evaluation
Burien, WashingtonKitsap County Stormwater
Kitsap County, Washington Riverview Park Master Plan
Kent, Washington
Bothell Crossroads Bothell, Washington 41st St Overcrossing
Everett, Washington Olympic View Drive Rehabilitation
Lynnwood, Washington
Lake Stevens Wastewater Treatment Plant
Lake Stevens, Washington Lakewood Interceptor
Marysville, Washington Camp Casey Reclaimed Water Infiltration Feasibility
Whidbey Island, Washington