Thalweg profile maintenance for aquatic organism passage at roadway culverts

Research output: Contribution to conferencePaperpeer-review


A countersunk culvert design variant was studied for maintenance of streambed stability, and fish and aquatic organism passage, at a roadway crossing. Previous studies and construction of countersunk and oversized culverts have mimicked adjacent riffle structures, and have considered—over brief time intervals—the initial placed and evolved sediment gradations, inscribed channel forms, and fish utilization of these channels and sediments. Challenges to these installations include the long-term stability of any placed sediments within a culvert section, and the potential reduction in base level due to the lowered culvert elevation within the channel profile.
Original languageEnglish
Publication statusPublished - 24 Jun 2009
Event2009 ASABE Annual International Meeting - Grand Sierra Resort, Reno, United States
Duration: 21 Jun 200924 Jun 2009


Conference2009 ASABE Annual International Meeting
Abbreviated titleASABE 2009
Country/TerritoryUnited States


  • culvert
  • aquatic passage
  • thalweg profile
  • sediment transport


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