King County’s Barton roadside rain gardens

See how King County used green infrastructure to build a CSO control facility in West Seattle King County’s Barton CSO Control project constructed 91 roadside rain gardens on 15 blocks in West Seattle.

The project, completed in 2015, is a type of green stormwater infrastructure. King County is responsible for regular maintenance of the roadside rain gardens year round. You can expect to see crews onsite at least monthly performing regular maintenance.