Fish passage through retrofitted culverts : final report.

Gregory, S.; McEnroe, Jeff; Klingeman, Peter; Wyrick, Josh

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Fish passage through retrofitted culverts : final report.

2004-11-01
By Gregory, S. ; McEnroe, Jeff ; Klingeman, Peter

File Language:

English

Details

Alternative Title:

Fish passage through retrofitted culverts.
Creators:

Gregory, S. ; McEnroe, Jeff ; Klingeman, Peter ; Wyrick, Josh
Corporate Creators:

Oregon. Dept. of Transportation. Research Unit
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:
Publication/ Report Number:

FHWA-OR-RD-05-05
Resource Type:

Tech Report
Geographical Coverage:

Oregon
Corporate Publisher:

Oregon. Dept. of Transportation. Research Unit
Abstract:

Long term and short term studies of fish movement were conducted at several retrofitted culverts within Oregon. This was done to assess the effectiveness of retrofitting culverts with baffles to improve fish passage. The long term results showed that the baffle equipped culverts do in fact allow fish passage, even though the fish in the study areas did not appear to move a great deal in any part of the study reaches. The short term results indicated a definite improvement in the ability of juvenile steelhead trout to move upstream after the addition of certain baffle configurations. Measurements of hydraulic conditions showed that the baffles do create areas of lower flow velocity, deepen the flow, and create resting pools. These observations indicate that fish can and do move through culverts retrofitted with baffles and that the addition of baffles can improve the ability of juvenile fish (especially steelhead trout) to move upstream through a culvert.
Format:

PDF
Funding:

SPR 325
Download URL:

https://rosap.ntl.bts.gov/view/dot/23016/dot_23016_DS1.pdf
File Type:

[PDF - 3.78 MB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:7a6ffc4cbedc2863747ce3a72824867400b5287da1eef49f3d3099360690e4c9c03c15786e25feeff8c52c304697fb61ad83a38092e1162c016143412d196fe4

File Language:

English

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