Preliminary Study of Scour in Bottomless Culverts

Many traditional culvert designs develop into fish barriers due to excessive channel degradation. Increased concern for and interest in better facilitating fish migration or passage through culverts have fostered alternative culvert designs. Such culvert designs include "buried-invert" and "bottomless" culverts. The goal of buried-invert and bottomless culvert designs is to minimize discontinuity between the adjacent natural channel reaches by, in most cases, installing a culvert of sufficient size as to span the entire channel width. The large culverts minimize the discontinuities in channel width and flow velocities between the culvert and the adjacent channel reaches. The buried-invert or bottomless culvert geometries also help natural sediment transport processes. Bottomless culvert research, to date, has primarily focused on fish passage; there is a limited understanding of the hydraulic characteristics of bottomless and buried-invert culverts.

• Record URL:
  http://www.dot.state.ak.us/stwddes/research/assets/pdf/fhwa_ak_rd_06_05.pdf
• 
• Corporate Authors:

  Utah Water Research Laboratory

  8200 Old Main Hill
  Logan, UT  United States  84322-8200

  Alaska Department of Transportation and Public Facilities

  Research, Development and Technology Transfer, 2301 Peger Road
  Fairbanks, AK  United States  99709-5399

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Crookston, Brian M
  • Tullis, Blake P
• Publication Date: 2006-12

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Photos; References; Tables;
• Pagination: 127p

Subject/Index Terms

• TRT Terms: Channels (Waterways); Culverts; Design; Fishes; Hydraulics; Migration; Scour; Sediments; Streambeds; Substrates (Waterways)
• Uncontrolled Terms: Fish passage; Flow velocity
• Subject Areas: Bridges and other structures; Design; Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 01044287
• Record Type: Publication
• Report/Paper Numbers: FHWA-AK-RD-06-05
• Contract Numbers: T2-02-08 RES-04-004
• Files: TRIS, USDOT, STATEDOT
• Created Date: Mar 21 2007 3:20PM