Christine E. Carrigan, P.E., Ph.D. Expert Witness
Curriculum Vitae

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Specialties & Experience of this Expert Witness

General Specialties:

Civil Engineering and Transportation

Specialty Focus:

roadside safety, guardrail, run-off-road crashes, barrier end treatments, guardrail terminals, impact attenuators, crash cushions, bridge rail, median barrier, cable barrier, concrete barrier, tree or pole crash, rollover, bridge pier, guardrail design, highway design, highway construction


PhD, Worcester Polytechnic Institute; MS, Worcester Polytechnic Institute; BS, Worcester Polytechnic Institute

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

Civil Engineer (serving clients nationally) providing highway, roadside, and traffic safety expert consulting services with particular focus in these areas: Run-off-road crashes involving passenger vehicles, heavy trucks, and/or buses; crashes with highway barriers (e.g., guardrails, bridge rails, median barrier), terminals, crash cushions, and attenuators, tree/pole crashes; rollovers; highway design and construction, and highway safety. Dr. Carrigan has or is currently conducting research funded by the National Academy of Science’s National Cooperative Highway Research Program (NCHRP), the Federal Highway Administration (FHWA), and a variety of other government and industry sponsors. Dr. Carrigan’s active research interests include the in-service performance of roadside features and hazards; development of models from crash data to represent the impact of design changes on crash frequency and severity; risk-analysis of highway and roadside designs; and the development of cost-effective and risk analysis design tools. Dr. Carrigan has developed design guidance for inclusion in national publications such as the AASHTO Roadside Design Guide and the AASHTO LRFD Bridge Specification. She has developed models for inclusion in the AASHTO Highway Safety Manual. Dr. Carrigan has consulted on the development of roadside design and highway safety guidance including bridge rail selection guidelines, median and roadside barrier selection and placement guidelines, and pier protection guidelines. She is currently developing guidance for the conduct of ISPEs. She is a member of the Transportation Research Board Committee on Roadside Design and the chair of the In-Service Performance Evaluation (ISPE) subcommittee. She is also a member of the Committee on Geometric Design. She is a registered professional engineer the States of AZ, CT, IL, ME, MA, MS, OH, SC, TX, WS and holds an NCEES Model Law record.