Brent Pharesbphares@iastate.edu email >
Bridge Research Engineer, BEC
Zachary Hanszhans@iastate.edu email >
About the research
Provide guidance to county engineers for replacement or upgrading bridge and bridge approach guard railing by:
- Determining the criteria and guidelines used by other states for bridge and approach guardrail implementation for low and very low-volume roads.
- Performing benefit/cost analysis for using bridge and approach guardrails based on traffic levels and road classifications.
- Investigating the use of non-standard and innovative bridge and approach guardrails for low-volume roads.