Utility Location Technologies for Strategic Highway Research Program 2 (SHRP2)

STREAM EM MCGPR unit being towed behind a pickup truck

Cardno uses advanced subsurface utility locating technologies as part of FHWA investigations.

The Strategic Highway Research Program was authorized by Congress to find strategic solutions to improve highway safety, reduce congestion, and improve maintenance methods for roads and bridges. In SHRP Phase 2, the program expanded to include research of two advanced utility locating technologies: Multi-Channel GPR (MCGPR) and Time-Domain Electromagnetic Induction (TDEMI). Supplemental mapping of utilities, continuous depth and elevation utility profiles, voids, in-recorded rebar, vault dimensions, construction rubble, legacy rail beds and more were among the information that SHRP2 data identified.

The mandate of the Research program is to learn more about the limitations and advantages of technologies in a variety of situations. Investigations were conducted through state Departments of Transportation (DOT) projects in Arkansas, Ohio, Oregon, and Virginia. Cardno was selected to be part of the SHRP2 investigative team for six of the eight projects due to our depth of expertise in Subsurface Utility Engineering and geophysical investigations for DOTs across the U.S. as well as our involvement in SHRP Phase 1.

Cardno’s skilled team of geophysicists and utility engineering professionals prepared data collection, data processing, integration and analysis of the effectiveness of Multi-Channel GPR (MCGPR) and Time-Domain Electromagnetic Induction (TDEMI). The findings will improve understanding of the limitations and advantages of these technologies in a variety of situations. Cardno's team also documented the advantages of using these technologies to find other subsurface anomalies and features.

The Federal Highway Administration (FHWA) is planning to submit a final report of findings in the summer of 2019.