Fish Passage Restoration



The Coastal Program and the Nature Conservancy have been working together to conserve ecologically important habitats in the rainforest archipelago of Southeast Alaska, including the Harris River watershed on Prince of Wales Island. The watershed is important for salmon and other sport fish, and has been degraded over many years due to periodic logging activities and undersized culvert stream crossings that cause stream channel degradation and create fish passage barriers.


The Coastal Program has been providing technical and financial assistance to replace culverts with bridges to restore natural stream functions, and habitat connectivity. These restoration projects benefit pink, chum and coho salmon, and cutthroat trout and Dolly Varden char. These bridges also reduce infrastructure maintenance costs and improve public safety.





Example of undersized culvert.
Credit: USFWS

Culvert removed and grading of stream banks.
Credit: USFWS

Installation of bridge deck.
Credit: USFWS

Bridge Construction complete.
Credit: USFWS