West Weaver Creek FPIP at Oregon Street
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Project Gallery Five - West Weaver Creek, Trinity County
The Trinity County Migration Barrier Removal Project at West Weaver Creek and Oregon Street replaced an undersized, perched culvert with a concrete, Con-Tech bottomless culvert. The arch provides for full natural stream bed simulation and the flood capacity at the crossing was designed for the 100-year storm, preventing future culvert blockages, flooding, and blow-outs. This project was ranked as the highest priority project in Trinity County and the 8th highest priority project in the 5C area under the 5C Migration Barrier Inventory. The project restored access to approximately 3.75 miles of anadromous habitat for coho salmon and steelhead trout. Project funding was obtained through the CA Department of Fish and Game' Coastal Fisheries Recovery Grant Program, State Water Resources Control Board Proposition 204, and Trinity County in-kind matching funds. Unfortunately, the outlet pool at the old culvert had become quite a popular swimming hole!

 

PICTURE 5-1
Culvert is barrier to fish, but popular swimming spot


 

PICTURE 5-2
Crew constructs forms for footings


 

PICTURE 5-3
Arch units set in place



PICTURE 5-4
Arch units assembled


 

PICTURE 5-5
Bridge backfilled, road replaced & re-vegetation work


 

PICTURE 5-6
Bottomless bridge creates natural streambed



PICTURE 5-7
View from inside bridge


 

PICTURE 5-8
Bridge accommodates storm flow with ease


 

PICTURE 5-9
Bridge completed & performing well









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