Where is this located? It lies under the street and parking area on 9th Street about fifty feet from the corner of 9th and Harris Avenue.
What’s special about this place? This vault is a large concrete structure that lies under the pavement and is designed to hold a lot of water – an amazing capacity of up to 90,000 gallons. What was an empty lot that might have infiltrated rain falling on the ground is now a four-story, mixed-use development. Lacking space above ground for stormwater capture and treatment, runoff is being collected in an enormous vault buried under the parking area on this street. An under-drain captures the filtered stormwater and pipes it under Harris Avenue where it finally enters Padden Creek.
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