Kakaako Pumping Station

Honolulu, United States

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Built in 1900, the Kakaʻako Pumping Station in Honolulu is a Richardsonian Romanesque sewerage facility designed by architect Oliver G. Traphagen, who was known for bold stone public works buildings in Duluth, Minnesota. The station's striking exterior features walls of local lava rock, large arched windows, and green tile roofing, crowned by a 76-foot smokestack. As Honolulu's first sewerage pumping station, it served the rapidly growing city's urgent sanitation needs until the Ala Moana Pumping Station assumed its functions in 1940. Located at Ala Moana Boulevard and Keawe Street between the Kewalo Basin and Downtown Honolulu, the building has remained largely vacant but is now undergoing restoration by the Hawaii Architectural Foundation under the jurisdiction of the Hawaii Community Development Authority. It is listed on the National Register of Historic Places.