Infrasense Collects Driving Speed NDE Data on Beacon Street in Boston, Massachusetts

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Infrasense recently evaluated the condition of the Beacon Street Bridge Crossing Interstate 90 in Boston, MA. The deck evaluation was carried out using vehicle-based ground penetrating radar (GPR) and infrared thermography (IR) equipment operated at driving speeds.

Beacon St Bridge

Infrasense methods have addressed a variety of bridge structure types, including asphalt, concrete, and epoxy overlays, stay-in-place forms, slab on girders, one-way slabs, and box girders.

This past summer, while traffic was light, Infrasense evaluated the condition of the Beacon Street bridge, (Route 2) Eastbound over the I-90 Turnpike in Boston, Massachusetts. The evaluation was carried out using vehicle-based ground penetrating radar, as well as infrared thermography (IR) and high-resolution video (HRV) in order to assess the concrete conditions. All the testing was performed at driving speed with no lane closures and no disruption to traffic. The GPR and IR methods were carried out according to ASTM specifications D6087-08(2015) and D4788-03(2013), respectively.

Following the field testing, the data was transferred to Infrasense’s headquarters in Woburn, Massachusetts for quality assurance (QA) review, analysis, and reporting. The analysis was completed with the support of internally developed proprietary software. The software is specifically catered to the analysis of GPR, infrared, and visual data for bridge deck and pavement applications. The analysis of the Beacon Street bridge data resulted in quantities and maps of concrete deterioration, rebar-level delamination, patching, and spalling. These results are delivered in a comprehensive report with descriptions of the data collection procedures, equipment, analysis methods, and results obtained.

This past year, Infrasense evaluated the condition of over 1000 bridge decks including nondestructive testing of decks in Wisconsin, Missouri, Florida, New York, Massachusetts, Connecticut, Indiana, Pennsylvania, Rhode Island, Idaho, Louisiana, Ohio, and Washington D.C. Infrasense methods have addressed a variety of bridge structure types, including asphalt, concrete, and epoxy overlays, stay-in-place forms, slab on girders, one-way slabs, and box girders. We have handled structures ranging in size from small 20-foot long stream crossings to major river crossings and viaducts up to 3 miles in length.

About Infrasense, Inc.
Since 1987, Infrasense, Inc. has applied advanced technologies to address the most difficult challenges in subsurface scanning. Infrasense engineers extract critical information using non-destructive methods from a diverse range of structures. In addition to providing ongoing subsurface evaluation services to clients across the country, the firm has also conducted numerous research programs to advance the field of subsurface detection and nondestructive evaluation. To learn more about Infrasense and the services we provide, visit our website:
http://www.infrasense.com

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Ryan Grover
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