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

File Language:
English


Filetype [PDF - 10.15 MB]

Details

  • Creators:
    Baral, Darshan ; Tritico, Hans M.
  • Corporate Creators:
    Youngstown State University
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • 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
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/26796/dot_26796_DS1.pdf
  • File Type:
    Filetype[PDF - 10.15 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha256:3074727ac9e5ae7b136ff8e2cc19445a163b0ef3451c252448c1a6e4fc176844
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