2015-17 Funding -- $1,100,000 [$900,000 for Phase I construction per 11/03/2015 agreement here; $200,000 for Phase II design per 4/21/2016 approval of Flood Authority staff recommendation here.]
Project Financials -- See separate project financials website here.
Description --Centralia is applying for funds to construct upstream storage on China Creek modeled after the Johnson Creek Brookside Wetland project in Portland, OR. It is intended to use excavated naturally shaped landforms, stream channel friction and natural in stream fish habitat features to slow down and store runoff from the upper China Creek watershed during high flow runoff events. Delaying the peak flow runoff from the upper basin (approximately 70% of the watershed, generating 40% of the runoff flow) will allow China Creek to transport runoff from the urbanized middle basin (approximately 15% of watershed, generating 50% of runoff flow) reducing the frequency and/or intensity of flooding downtown.
Flood Hazard Reduction Benefits -- The flood benefits of the project include reduced/eliminated flooding of downtown businesses, preserving access along main travel corridors for emergency vehicles and the public, and improved emergency response time during flood events. The project will also recreate the China Creek ecosystem within the project boundary. The beneficiaries are local business owners, the public and the public employees who serve the public during flood events, fish and wildlife.
Project Status --On-Track, Underway.
Schedule/Milestones -- Current schedule is as follows (see past schedule accomplishments here):
