Colorful Play Barn - The pump house is now the play barn. Most of the pumps, compressors, and piping are still in place. The 3000 hp (2,200 kW) compressor’s 10 short ton (9 t) fly-wheel ran continuously to keep the plant running 24 hours a day. In this building air was compressed for the oxygen-extraction process, the oxygen was then pumped to the generators for the first stage of gas manufacturing, and the final product was compressed and pumped to either the storage tank or down the lines of main to customers.
Gas Works Park in Seattle, Washington is a 19.1 acre (77,000 m²) public park on the site of the former Seattle Gas Light Company gasification plant, located on the north shore of Lake Union at the south end of the Wallingford neighborhood. Gas Works park contains remnants of the sole remaining coal gasification plant in the US. The plant operated from 1906 to 1956, and was bought by the City of Seattle for park purposes in 1962. The park opened to the public in 1975. (Source - Wikipedia)