Evaluation of a small diameter baffled culvert for passing juvenile salmonids.

Mason Bryant

doi:10.2737/PNW-RN-384

Treesearch

Evaluation of a small diameter baffled culvert for passing juvenile salmonids.

Informally Refereed

Authors:

Mason Bryant

Year:

1981

Type:

Research Note

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RN-384

Source:

Res. Note PNW-RN-384. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 8 p

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Abstract

A 90-cm-diameter culvert with off-set baffles was set at a 10-percent gradient in an artificial stream channel on Admiralty Island, Alaska. Coho salmon, Dolly Varden char, and cutthroat trout, all less than 120-mm fork length, were able to move up the 9-m culvert. Additional work is needed to determine an upper discharge limit and to evaluate field installations.

Keywords

Fish habitat, culvert construction, road building (forest/logging), salmonids

Citation

Bryant, Mason D. 1981. Evaluation of a small diameter baffled culvert for passing juvenile salmonids. Res. Note PNW-RN-384. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 8 p