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dc.contributor.authorBell, Matthew
dc.contributor.authorAment, Rob
dc.contributor.authorFick, Damon
dc.contributor.authorHuijser, Marcel
dc.identifier.citationBell M, Ament R, Fick D, Huijser M editors. Final Report 2022: Improving Connectivity: Innovative Fiber-Reinforced Polymer Structures for Wildlife, Bicyclists, and/or Pedestrians - Final Report Transportation Pooled Fund Study, TPF-5(358). Nevada Department of Transportation, Carson City, NV.en_US
dc.descriptionThis work was sponsored by the Nevada Department of Transportation. The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the data presented herein. The contents d o not nec essarily reflect the official views o r policies of the State of Nevada at the time of publication. This report does not constitute a standard, specification, or regulation.en_US
dc.description.abstractEngineers and ecologists continue to explore new methods and adapt existing techniques to improve highway mitigation measures that increase motorist safety and conserve wildlife species. Crossing structures, overpasses and underpasses, combined with fences, are some of the most highly effective mitigation measures employed around the world to reduce wildlife-vehicle collisions (WVCs) with large animals, increase motorist safety, and maintain habitat connectivity across transportation networks for many other types and sizes of wildlife. Published research on structural designs and materials for wildlife crossings is limited and suggests relatively little innovation has occurred. Wildlife crossing structures for large mammals are crucial for many highway mitigation strategies, so there is a need for new, resourceful, and innovative techniques to construct these structures. This report explored the promising application of fiber-reinforced polymers (FRPs) to a wildlife crossing using an overpass. The use of FRP composites has increased due to their high strength and light weight characteristics, long service life, and low maintenance costs. They are highly customizable in shape and geometry and the materials used (e.g., resins and fibers) in their manufacture. This project explored what is known about FRP bridge structures and what commercial materials are available in North America that can be adapted for use in a wildlife crossing using an overpass structure. A 12-mile section of US Highway 97 (US-97) in Siskiyou County, California was selected as the design location. Working with the California Department of Transportation (Caltrans) and California Department of Fish and Wildlife (CDFW), a site was selected for the FRP overpass design where it would help reduce WVCs and provide habitat connectivity. The benefits of a variety of FRP materials have been incorporated into the US-97 crossing design, including in the superstructure, concrete reinforcement, fencing, and light/sound barriers on the overpass. Working with Caltrans helped identify the challenges and limitations of using FRP materials for bridge construction in California. The design was used to evaluate the life cycle costs (LCCs) of using FRP materials for wildlife infrastructure compared to traditional materials (e.g., concrete, steel, and wood). The preliminary design of an FRP wildlife overpass at the US-97 site provides an example of a feasible, efficient, and constructible alternative to the use of conventional steel and concrete materials. The LCC analysis indicated the preliminary design using FRP materials could be more cost effective over a 100-year service life than ones using traditional materials.en_US
dc.description.sponsorshipNevada Department of Transportation 1263 South Stewart Street Carson City, NV 89712en_US
dc.publisherNevada Department of Transportationen_US
dc.relation.ispartofView more projects and reports generated by TPF-5(358), please visit http://tpf-5-358-wvc-study.orgen_US
dc.relation.ispartofseriesNDOT Research Report;701-18-803 TO 2 Part 3
dc.rightsNo restrictions. This document is available through the: National Technical Information Service Springfield, VA 22161en_US
dc.subjectWildlife crossing, fiber reinforced polymer structure, fiber reinforced polymer materials, bridge, wildlife vehicle collision, highway safety, mitigation measureen_US
dc.titleImproving Connectivity: Innovative Fiber-Reinforced Polymer Structures for Wildlife, Bicyclists, and/or Pedestriansen_US
dc.title.alternativeFinal reporten_US
dc.typeTechnical Reporten_US
mus.relation.collegeCollege of Engineeringen_US
mus.relation.universityMontana State University - Bozemanen_US
mus.relation.researchgroupWestern Transportation Institute (WTI).en_US

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