NDT Inspection of Large Bridge Decks
May 18, 2018
GPR Inspection of 52 Bridges in New York
October 26, 2018

GPR Inspection of 19 Bridges in Missouri

A nondestructive inspection of 19 bridge decks on the Interstate 44 corridor between Springfield and Joplin, Missouri was conducted utilizing Ground Penetrating Radar (GPR). The objectives of the GPR inspection were to provide an up‐to‐date assessment of the physical condition of the concrete deck, including the overall quantity of deteriorated concrete within the bridge as well as the depth to the top reinforcement. The GPR bridge deck inspection was performed at highway speeds, without the need for traffic control. In addition to the GPR inspection, soundings were carried out on portions of selected bridge decks for correlation with the GPR results. The nondestructive inspection of the I‐44 bridge decks was conducted for the Missouri Department of Transportation, and Crawford, Murphy & Tilly, Engineers and Consultants.

A sample of some of the deliverables that we provided from the inspection are shown below.


GPR Delamination Probability Plan-View Mapping


GPR Reinforcement Depth Plan-View Mapping



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