This project is a collaboration between trout unlimited and the service S national fish passage program, coastal program, and partners for fish wildlife program to finalize the development of…

This project is a collaboration between trout unlimited and the service S national fish passage program, coastal program, and partners for fish wildlife program to finalize the development of engineering designs and implementation plans to replace an undersized concrete box culvert on strawberry creek at the central avenue stream crossing in mckinleyville, CA. The existing structure is a complete barrier to upstream fish passage, including all life stages of coho salmon (ESA listed), steelhead trout (ESA listed), coastal cutthroat trout, and pacific lamprey. In addition, IT is undersized and incapable of proper hydrologic and geomorphic functioning during large stream flow events. This project will provide the additional funding required to complete required geotechnical investigations and development of 100 engineered design plans for replacement of the existing structure with a properly sized, natural stream-bottom arched culvert that will provide full, inimpeded fish passage for all species and life stages of fish and aquatic organisms, as well as proper hydrologic and geomorphic functioning of 100-year flood stream flows. Trout unlmited will serve as the funding recipient and project manager for the project. GHD will provide lead engineering services as a sub-contractor, with assistance from michael love associates (MLA), who will finalize the hydraulics analysis to support culvert type selection, and crawford associates INC. (CAI) who will complete the geotechnical investigation and report. The service will be substantially involved in the project through assistance with project coordination, participation in project planning meetings, review and editing of engineering design reports, and assistance with project data collection as needed.