UTC 2022 Funding - Cycle 1 Research Projects

Project No.: CY1-OSU-UARK-01
Title: Nature-Based Solutions (NBS) for Climate Resilient Culverts
Performing Institutions: Oklahoma State University and University of Arkansas
Principal Investigators: Jaime Schussler, Oklahoma State University; Norb Delatte, Oklahoma State University; Andrew Braham, University of Arkansas
Start and Anticipated Completion Dates: 10/1/2023-9/30/2024
Abstract: Culvert design must consider structural design, hydraulic design, environmental and site consideration, joint performance, and service life. The design service lives (DSL) of culverts range between 15-20 years; however, most U.S. DOTs DSL are currently 50-75 years. Changes in weather patterns have resulted in increased storm frequency and intensity, leading to increased stormwater runoff and sediment yields; however, the rigidity of the culverts has not allowed the conveyance to adapt. Downstream implications include flooding, washouts, and damages leading to costly emergency repairs. This has altered stream behavior and disproportionately affected aquatic species. Research in the Northwest has shown that culverts disrupt natural movement patterns, which impact local ecosystems. The main objective of this research is to identify culvert characteristics that lead to vulnerability under changing weather patterns and develop nature-based solutions (NBS) for culverts through partnerships.
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