The Ostrich Creek Culvert Improvements project is a stormwater project that will replace three culverts along Ostrich Creek with upsized fish passable culverts. The project will be a substantial improvement to the City’s stormwater conveyance system on the west side of Bremerton. The Ostrich Creek headwaters are just north of Pendergast Park and the creek runs down to Ostrich Bay in West Bremerton. The creek is significantly encumbered by pipes and culverts that damage its fish bearing capabilities. While the replacement of just three culverts will not fix all of the fish barriers along the creek, it is an important first step. Additionally, in consideration of development in West Bremerton, particularly within the Ostrich Creek water shed, these culvert improvements will be designed to handle a greater capacity of water. Generally, the entire creek will be evaluated to determine the appropriate size and culvert type at each location. Read on for more information about the 3 culverts.
Ostrich Creek crosses under Price Road in an undersized round culvert that failed in 2005, washing out part of Price Road with it. The road and culvert were repaired, but the culvert is overdue for permanent replacement. Culvert size, type, and associated stream rehabilitation will be determined during design.
Kitsap Way near SR 3
Ostrich Creek’s passage under Kitsap Way is nearing the end of its useful life. It is undersized, threatening the cemetery upstream with flooding when it backs up, and failure of the culvert could cause emergency closures of Kitsap Way. Replacement of the culvert will present challenges because of limited right of way, and the busy roadway above. Special attention will be paid to construction methods, and traffic control plans during design to mitigate impacts to traffic during construction.
The City rehabilitated a portion of stormwater pipe that runs along Brentwood Way several years ago. As mitigation for that project the City agreed to replace the Ostrich Creek passage under Brentwood with a fish passable culvert. Culvert size, type, and associated stream rehabilitation will be determined during design.
Project Progress and Schedule
The Public Works Trust Fund loan agreement with the Public Works Board has been approved by City Council and executed by the Mayor. The City is proceeding with the selection of an engineering firm to undertake the design of the project. Selection should be complete, and design underway by mid to late October, 2018. Design of the project, and required permitting will continue through-out 2019. Public outreach take place during 2019. Please consider signing for the project’s email list in order to receive project notifications and updates: News Flash - Ostrich Creek Culverts. Construction phasing and schedule will be determined during the design phase, and may span more than one construction season due to the complexity of these projects and environmental permit conditions.
About the Funding Source
The City has secured a low interest Public Works Trust Fund loan to replace the three culverts along Ostrich Creek. The Public Works Trust Fund loan program is an excellent funding source for the project because the need for the project has been identified on the City’s Capital Improvement Plan for many years. Many factors, including location, improvement type, and cost has precluded these projects from being funded by grant sources. A PWTF loan is a better option than a bond because it has a lower interest rate, has no fees, and is a better type of debt for the City. The loan will be repaid over the course of 20 years from Stormwater Utility funds.