Current and Recent Projects

2025 -2026 Principal Investigator, South Dakota Department of Transportation, “South Dakota Rural Wildlife Crossing Study.”

2024-2026 Scientific Advisor and Team Member, sub-consultant to HDR, “Missouri’s Wildlife-Vehicle Collision Reduction Analysis and Hot Spot Mitigation Measures Feasibility Study.”

2023 – 2025 Principal Investigator, Washington Department of Fish and Wildlife, “Washington’s Habitat Connectivity Action Plan.”

2023 – 2025 Scientific Advisor to Massachusetts Department of Transportation on the development of the “State Wildlife and Transportation Action Plan.”

2023-2024 Principal Investigator, Idaho Transportation Department, “Identification of Wildlife-Vehicle Conflict Priority Hotspots in Idaho.”

2023-2025 Principal Investigator, Colorado Department of Transportation, “Evaluating the reliability and effectiveness of Colorado SH 13 wildlife mitigation measures.”

2023 – 2027 Principal Investigator Colorado Department of Transportation, “Evaluation of Wildlife Mitigation on US 160/SR152 Chimney Rock Overpass and Underpass.”

2023-2025 Principal Investigator, Utah Department of Transportation, “Evaluation of a Wildlife-Detection Driver Warning System at the SR 73 Wildlife Crosswalk.”

2019 - 2022 Principal Investigator, New Mexico Department of Transportation, “New Mexico’s Wildlife Corridors Action Plan.” Project for New Mexico Department of Transportation and Department of Fish and Game. In conjunction with DBS&A of Albuquerque, New Mexico.

 2018 - 2022 Principal Investigator, Federal Highways Pooled Fund Study, with Nevada Department of Transportation, “The Wildlife Vehicle Collision Reduction and Habitat Connectivity Pooled Fund Project TPF 5(358) Strategic Integration of Wildlife Mitigation into Transportation Procedures.”

 2020 - 2021 Researcher Sub-Consultant for Arizona Department of Transportation “Statewide Wildlife-Vehicle Conflict Study.” In conjunction with Michael Baker, Inc.

 2018 - 2019 Principal Investigator, Utah Department of Transportation, “Identification of Wildlife-Vehicle Conflict Hotspots in Utah.”

2018 - 2019 Researcher sub-consultant to Planning and Engineering Firm, WGM Group, Inc., Montana Department of Transportation, “I-90 Jens Safety Project,” research to determine wildlife use of existing box culverts and interchanges pre-fence.

 2018 - 2021 Principal Investigator, Colorado Department of Transportation, “US 160 Dry Creek Wildlife Study,” research on wildlife crossing, fence ends, and fence end treatments.

 2018 - 2019 Principal Investigator, Utah Department of Transportation, “US 191 Monitoring of Wildlife Crossings and Cattle Guards.”

 2017 - 2020 Principal Investigator, Utah Department of Transportation, “US-189; State Park to Rock Cut Passing Lanes,” research on wildlife crossing structures and escape ramps.

 2017 - 2019 Consultant to Principal Investigator, Texas Department of Transportation and University of Texas at Austin, “Incorporating Wildlife Crossings into TxDOT’s Project Development, Design and Operations.”

 2016 - 2018 Principal Investigator, Nevada Department of Transportation, “Prioritization of Wildlife-Vehicle Conflict in Nevada.”

 2016  Principal Investigator, Idaho Department of Transportation, “Idaho Wildlife Connectivity and Safety Solutions for US 20 and SH 87.”

 2015 - 2021 Co- Principal Investigator, Colorado Department of Transportation, “State Highway 9 Wildlife Mitigation Monitoring.”

 2015 - 2016 Principal Investigator, South Dakota Department of Transportation, “Reducing Wildlife-Vehicle Collisions in South Dakota.”

 2015 - 2017 Principal Investigator, Utah Department of Transportation, “Testing New Technology to Restrict Wildlife Access to Highways: Phase 2.”

 2013 - 2019 Principal Investigator, Utah Department of Transportation and Utah Division of Wildlife Resources, “Monitoring US 89 East of Kanab Paunsaugunt Wildlife Crossings.”

2013 - 2016 Principal Investigator, Utah Department of Transportation and Utah State University Utah Transportation Center, “Study of Wildlife Deterrents,” research and graduate student support.

2013 - 2014 Principal Investigator, Idaho Transportation Department, “Identification and Prioritization Method to Mitigate Idaho Roads for Wildlife.”

2012 - 2013, Scientific Advisor to North American Salts, Bighorn Sheep and Salt Deterrent, in Thompson Falls, Montana.

2011 - 2015, Co-Principal Investigator, Oregon Department of Transportation, two grants to create and conduct research of Lava Butte-Bend Wildlife Crossings.

2011 - 2012 Principal Investigator, Idaho Fish and Game, “Impact of Interstate 84 on the Sublet Mule Deer Herd in South Central Idaho.”

2010 - 2012 Consultant to Principal Investigator, Vermont Transportation Department, “Transportation and Wildlife Best Management Practices Research.”

2009 - 2011 Co-Principal Investigator, Washington Department of Transportation grant, “Permeability of Existing Structures for Terrestrial Wildlife.”

2008 - 2016 Principal Investigator, Montana Department of Transportation, “Evaluation of Wildlife Crossing Structures on US 93 in Montana’s Bitterroot Valley.”

2008 - 2009 Principal Investigator, Utah Division of Wildlife Resources grant, “Identifying wildlife crossing configurations for Utah wildlife.”

2007 - 2013 Principal Investigator, Utah Department of Transportation and Utah Division of Wildlife Resources, ‘Wildlife Crossings in Utah – Determining What Works and Helping to Create the Best and Most Cost-Effective Structure Designs’ also included a graduate student stipend.

2007- 2008 Principal Investigator for National Academies National Cooperative Highway Research Program grant, “New Approaches to Ecological Surveys.”

2004 – 2008 Co- Principal Investigator with John Bissonette, National Academies Transportation Research Board, National Cooperative Highway Research Program, extension for “Evaluation of the Use and Effectiveness of Wildlife Crossings.”