Only 3,500 feet of Ravenna Creek still flows in the open. The rest is buried in pipes. Every bioswale helps keep the visible stretch alive.
Apply for Pilot ProgramRavenna Creek used to run for miles through Northeast Seattle. Today, only about 3,500 feet of it sees daylight - the stretch through Ravenna Park. The rest was buried in pipes decades ago, paved over, forgotten. What's left is beautiful, fragile, and carrying the runoff from an entire watershed through a narrow corridor.
Properties near the park border the last open section of the creek. Your stormwater runoff reaches this stretch directly. When the creek runs high after a storm, it's partly because upstream properties - including residential lots in Ravenna - are sending unfiltered water straight into the system.
The soil is the same alderwood profile as the rest of the Puget lowlands: loose on top, hardpan underneath. Water hits the glacial till and moves laterally toward the creek. A bioswale intercepts that flow, filters it through engineered soil media and native plants, and releases clean water slowly. You walk through Ravenna Park. You love the creek. A bioswale is how you protect it from your own property.
Tailored stormwater and landscaping solutions for your property.
Custom bioswale design using native plants and engineered soil. Seven-layer bioretention captures up to 90% of stormwater and feeds clean water to Ravenna Creek.
Drainage assessment and stormwater solutions for Ravenna's residential lots. Reduce runoff, protect the creek, and lower your utility bills.
Native landscaping designed for Ravenna's established character. Low maintenance, high curb appeal, and watershed-positive by design.
We're selecting 5 founding homeowners for our first residential bioswale installations. Ravenna properties border the last open stretch of the creek - your impact is direct and visible.
Explore the Ravenna Creek Watershed