Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
Please describe your roles and responsibilities related to permitting and load securement.
Please provide your general comments on bridge/tunnel strikes.
Date Prepared
Contact Information including Email and Telephone Number (optional)
Part II: General BrTS Questions
Do you consider bridge strikes to be a major problem in your day-to-day operations?
Yes
No
If you answered no, please explain
Has your firm experienced bridge strikes?
Yes
No
Are all BrTS recorded, documented, or reported to state authorities?
Yes
No
Which of the following is an accurate description of your knowledge related to BrTS?
I know where the frequently struck bridges are for my company (e.g., high-risk bridges) if any
I know where some frequently struck bridges are; but new locations emerge
I have limited knowledge of the whereabouts of the most frequent bridge hits, but it is easy to find them from our prior records
I have limited knowledge of the whereabouts of bridges we have struck, and it is difficult to find where they are due to the lack of data
We are particularly interested in countermeasures for OHV hits. What do you, as an industry representative, perceive as the primary cause of OHV bridge strikes? Please select 1 (less likely), 2 (somewhat likely), or 3 (very likely) for each.
Unpermitted OHV or other over-dimensional loads
Permitted drivers off authorized roadways
Driver’s lack of knowledge on their height of cargo
Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
Driver did not properly measure the height of their cargo
Improperly loaded equipment on truck trailers (e.g., irregular-sized cargo such as construction vehicles, wind turbines, equipment extending above vehicles)
Pilot or escort vehicle operator error
Load shifts and/or equipment failures (e.g., bed raises, boom raises) during the transport
Driver’s lack of recognizing or understanding low bridge warning signs
Driver’s reliance on non-commercial GPS that have no height restriction information
Driver does not have a detour option or ignores the detour
Use of an improper lane at the bridge (e.g., arch or truss) where vertical clearances vary by lane
Inadequate warning at or near bridges with low clearance
Change in pavement elevation due to weather conditions such as snow
Change in pavement elevation due to pavement projects (e.g., resurfacing)
Other (please specify)
Do your drivers always know the height of their cargo?
Yes
No
Are your drivers aware of any legal consequences associated with tunnel and bridge strikes?
Yes
No
Do you keep enforcement records on overheight violations?
Yes
No
Do not know
Do you have statistics on vehicle/cargo height violations?
Yes
No
I don’t know
Where would your drivers find roadway restrictions especially the height restriction along the route if a permit is not required?
DOT webpage such as 511 where lane-by-lane vertical clearance of a bridge can be found on an interactive online map
DOT webpage such as 511 where only minimum vertical clearance of a bridge can be found on an interactive online map
DOT webpage where lane-by-lane vertical clearance of a bridge can be downloaded/printed
DOT webpage where only minimum vertical clearance of a bridge can be downloaded/printed
Maps and atlases
Others (please specify)
Are your drivers aware of the protocol for reporting in cases of a bridge or tunnel strike?
Yes
No
Please describe the protocol you follow for reporting in case of a bridge or tunnel strike
Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
Part III: In Cab and Other Detection
Do you provide any in-cab detection or bridge hit prevention warning systems for drivers?
Yes
No
Does your company have any plans to install early warning over height vehicle detection systems in cabins?
Yes
No
If no, please explain.
If installed, does the “In Cab Detection System” work independently, or does it require a wifi/cellular internet connection?
Works independently
Requires a wifi or cellular connection
Other (please specify)
Are your regular routes pre-determined to avoid known low-clearance bridges?
Yes
No
Does your company use any GPS-based Vehicle Crash Prevention System with low-clearance bridge information?
Yes (please mention which ones)
No
Are you aware of FHWA’s Pilot Car usage requirements?
Yes
No
Do you do preliminary runs prior to moving loads with a pilot car?
Yes
No
It depends (please explain)
Part IV: Communications and Stakeholders
How do you communicate with state permitting and enforcement agencies? Do you sit on any advisory committees or panels? If so, please describe.
Do you participate in any joint committees/conferences/discussions with other haulers?
Do you know which states under-report the height posted on their signs?
Thank you! We value your feedback! Upon completion of the study, it will be our pleasure to share the outcome of the study with you. Please provide your contact information if you would like a copy of the final product.
Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
Suggested Citation:
"Appendix J: NCHRP08-139 Bridge and Tunnel Vehicle Strikes (BrTS) Assessment Survey Questionnaire (Motor Carriers)." National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
doi: 10.17226/28812.
There has been an increase in bridge and tunnel strikes in the United States, presenting significant hazards to both the vehicles involved and the structural integrity of bridges and tunnels. Nationally, there are over 15,000 bridge strikes annually, costing millions of dollars in repairs and posing serious safety risks. The pressing need for a comprehensive solution is evident.
National Academies of Sciences, Engineering, and Medicine. 2025. Prevention and Mitigation of Bridge and Tunnel Strikes. Washington, DC: The National Academies Press.
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