Duwamish Shipyard Inc - Harbour Facility in Seattle, Washington, USA

Duwamish Shipyard Inc is a harbour facility located at 5658 W Marginal Way SW in Seattle, Washington, within King County. The facility operates in the marine sector, focusing on shipbuilding and repair as indicated by its NAICS codes, which include ship building and repairing, marine cargo handling, and navigational services. Situated along the Duwamish Waterway, it serves as a key industrial hub for vessel maintenance and cargo operations in the Pacific Northwest. The facility operates under the regulatory framework of the United States, including the EPA's Vessel General Permit (VGP) and National Pollutant Discharge Elimination System (NPDES) permits for shoreside activities. As a harbour facility, it manages stormwater runoff and oil-water separation to comply with environmental standards. The shipyard's activities involve handling bulk and containerized cargo, with typical throughput scales for a medium-sized facility in the region. Duwamish Shipyard Inc plays a significant role in the local maritime industry, supporting commercial shipping and naval vessel maintenance. Its location on the Duwamish Waterway connects to the Port of Seattle, a major gateway for trade. The facility's operations contribute to the regional economy while adhering to environmental regulations to minimize impacts on the adjacent aquatic ecosystem.

The Duwamish Shipyard is located on the Duwamish Waterway, a tidal estuary that flows into Elliott Bay and Puget Sound. This area supports diverse marine life, including salmon and orcas, and is subject to strict stormwater management requirements under the EPA's NPDES program. The facility's shipbuilding and repair activities involve potential risks from oil spills, paint residues, and heavy metals, necessitating robust pollution control measures. Proximity to sensitive coastal habitats requires careful handling of hazardous materials and adherence to the Clean Water Act.