CGRER researcher awarded for developing self-cleaning culvert


Dr. Marian Muste with his self-cleaning culvert design. (IIHR-Hydroscience & Engineering/University of Iowa)
Dr. Marian Muste with his self-cleaning culvert design to the left. (IIHR-Hydroscience & Engineering/University of Iowa)
Nick Fetty | July 14, 2016

University of Iowa Center for Global and Regional Environmental Research member Marian Muste was recognized earlier this year for his efforts in developing a self-cleaning culvert.

Region 3 of the American Association of State Highway and Transportation Officials Research Advisory Council recognized Muste’s project along with three others in the Midwest region. Muste’s project is among 16 nationwide to be dubbed the “‘Sweet Sixteen’ High Value Research Projects” of 2016.

Muste’s research – “Development of Self-Cleaning Box Culvert Design: Phase II” – examines a system that uses the natural power of a stream flow to flush out sediment deposits in culverts. The system does not require intensive maintenance and can be constructed in new culverts or retrofitted for old ones. The design prevents buildup of sedimentation or vegetation in culverts which during rain events can cause culverts to overflow and damage adjacent property.

The Iowa Department of Transportation has implemented Muste’s design in a culvert along Highway 1 in Iowa City. Muste and his research team have monitored the site since the new design was installed in 2013 and he said it has been “working very well.”

Muste – who also serves on the faculty of the Departments of Civil and Environmental Engineering and Geography – concluded his report by outlining the benefits of his design.

“Besides their primary role in sediment mitigation, the designed self-cleaning structure maintains a clean and clear area upstream the culvert, keeps a healthy flow through the central barrel offering hydraulic and aquatic habitat similar with that in the undisturbed stream reaches upstream and downstream the culvert. It can be concluded that the proposed self-cleaning structural solution ‘streamlines’ the area adjacent to the culvert in a way that secures the safety of the culvert structure at high flows while disturbing the stream behavior less compared with the traditional constructive approaches.”

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