Infrasense Surveys Highway Bridge in Binghamton, NY to Map Rebar Depth and Quantify Corrosive Effects in the Concrete

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Infrasense surveys New York bridge deck with Ground Penetrating Radar to produce comprehensive condition maps and reports of rebar depth and concrete condition.

Bridge Carrying RTE 363

GPR is a cost-effective testing method that can be performed at any scale, from a single bridge deck to hundreds.

Infrasense mobilized to the city of Binghamton, New York to non-destructively test a bridge carrying RTE 363. The testing method of choice was Ground Penetrating Radar (GPR) which provides maps of rebar depth and rebar level deterioration.

The subsurface bridge data was collected using one of Infrasense’s custom field vehicles, implementing a set of 2 GHz horn antennas feeding into a SIR30 radar acquisition unit, both of which are manufactured by GSSI. The scan rate was regulated with a distance measurement instrument attached to the tire of the vehicle. For bridge deck surveys, a scan is collected every 2-inches of vehicle travel providing a high-resolution dataset.

GPR is a cost-effective testing method that can be performed at any scale, from a single bridge deck to hundreds. Once on site, Infrasense can collect GPR data on a bridge in minutes, often with no need for traffic control or lane closures. The field data is post-processed using Infrasense’s proprietary software, which is specifically catered to bridge deck condition assessments. The output of the analysis includes quantities and maps of rebar cover and concrete deterioration.

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Lori McCormick
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