Gas Works Park National Register of Historic Places Listing

For five decades, the Seattle Gas Light Company plant pumped toxic waste straight into Lake Union. They manufactured gas from coal. The fires finally went cold in 1956, leaving behind a heavily poisoned, pitch-black peninsula. Most city officials wanted to scrape it clean. Designer Richard Haag stopped them. He looked at the towering, rusty oil-gas generators and saw beauty instead of blight. This was a wild concept for the 1970s. Haag saved the industrial skeletons. He transformed the old exhauster building into an open-air play barn, complete with brightly painted machinery.

That radical preservation effort earned the park its spot on the National Register of Historic Places in 2003. It represents a massive shift. Historically, cities just bulldozed their greasy industrial pasts to make room for generic lawns. Haag tried biology instead. He used a mix of oil-eating microbes, sawdust, and sewage sludge to heal the poisoned soil right on-site. It was cheap. And it actually worked, sparking a global trend of adaptive reuse. Today, crowds of families picnic under the shadow of those towering, rust-colored iron structures on the edge of the lake. It remains a gritty, brilliant triumph.