thumb|330px|right|Aerial view of Harbor Island and the [[West Seattle Bridge/Spokane Street Viaduct from the southeast]]

right|thumb|upright|Harbor Island

Harbor Island is an artificial island in the mouth of the Duwamish River in Seattle, Washington, United States, where it empties into Elliott Bay. Built by the Puget Sound Bridge and Dredging Company, it was completed in 1909 and was then the largest artificial island in the world, at 350&nbsp;acres (1.4&nbsp;km<sup>2</sup>). Since 1912, the island has been used for commercial and industrial activities including secondary lead smelting, shipbuilding and repair, bulk petroleum storage, metal fabrication and containerized cargo shipping. Warehouses, laboratories and other buildings are located on the island.

Harbor Island was made from 24 million yd<sup>3</sup> (18 million m<sup>3</sup>) of earth removed in the Jackson and Dearborn Street regrades and dredged from the bed of the Duwamish River.

See also

  • List of structures on Elliott Bay#Harbor Island

References

  • Harbor Island: Blocks 4000 thru 4005 and Blocks 4018 thru 4030, Census Tract 99, King County, Washington United States Census Bureau