Computational study of fish passage through circular culverts in Northeast Ohio.

Baral, Darshan; Tritico, Hans M.; Youngstown State University

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Computational study of fish passage through circular culverts in Northeast Ohio.

2013-11-01
By Baral, Darshan ; Tritico, Hans M.

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Creators:

Baral, Darshan ; Tritico, Hans M.

Baral, Darshan ; Tritico, Hans M. Less -
Corporate Creators:

Youngstown State University
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Culverts Design Environmental Impact Analysis Fishes Simulation Statistical Analysis Streamflow
Publication/ Report Number:

FHWA/OH-2013/10
Resource Type:

Tech Report
Geographical Coverage:

Ohio
Corporate Publisher:

Ohio. Dept. of Transportation. Office of Statewide Planning and Research
Abstract:

An investigation has been carried out in Northeast Ohio to determine the percentage of culverts that act

as barriers for fish passage and to identify the design parameters that can be associated with passage

success through stream simulation in two computer programs – FishXing and HEC-RAS. The results

from HEC-RAS shows that, out of 40 culverts analyzed, 55% are partial barriers and 45% are complete

barriers. A comparable analysis in FishXing analysis suggest that out of the 54 culverts analyzed, 11%

are partial barriers and 89% are complete barriers. Student’s t-tests (p ≤ 0.05) showed that the

difference in the average perched height between partial barriers and complete barriers was significant

for the output of both programs. Additional analysis was carried out in FishXing for greenside darter

and largemouth bass by increasing diameter, decreasing length, decreasing slope, increasing

Manning’s roughness (n) of culvert material, and embedding the culverts with gravel substrate (n =

0.04) independently to examine the effect of those parameters on passage success. For greenside

darter, embedding the culverts resulted in 36% of the culverts turning from complete barriers into

partial barriers and had a greater impact on increasing passage success compared to varying other

design parameters. Similar analysis for largemouth bass exhibited a less noticeable difference.
Format:

PDF
Funding:

SJN 134691
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:3074727ac9e5ae7b136ff8e2cc19445a163b0ef3451c252448c1a6e4fc176844
Download URL:

https://rosap.ntl.bts.gov/view/dot/26796/dot_26796_DS1.pdf
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Computational study of fish passage through circular culverts in Northeast Ohio.

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