Drone-Assisted Inspection of the I-380 Bridge over Delaware and Lackawanna Railroad

BDI partnered with Pickering, Corts & Summerson to assist their National Highway Institute (NHI) routine inspection of the I-380 near Scranton, Pennsylvania bridge over Delaware and Lackawanna Railroad. The bridge’s complex geometry and limited accessibility presented challenges for traditional inspection methods. To enhance visual coverage and documentation, BDI provided drone inspection services, enabling access to…

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USDA Forest Service

Bridges with unknown reinforcement and/or material properties present a unique challenge for owners. Lack of adequate structural information, often caused by lost or damaged plans, prevents these structures from being properly evaluated, and leads to uncertainty about the adequacy of these bridges for current design, legal, and permit loads. To help bridge owners facing this…

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DeCordova Bend Dam: Ultrasonic Tomography

The DeCordova Bend Dam forms the Lake Granbury Reservoir on the Brazos River southeast of Granbury, TX and was constructed between 1966 and 1969. In conjunction with other consultants, BDI performed concrete material sampling and a nondestructive evaluation (NDE) at select portions of the dam to facilitate operational and structural improvements to the dam. A…

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DeCordova Bend Dam: Ultrasonic Testing

The DeCordova Bend Dam forms the Lake Granbury Reservoir on the Brazos River southeast of Granbury, TX and was constructed between 1966 and 1969. In conjunction with other consultants, BDI performed concrete material sampling and a nondestructive evaluation (NDE) at select portions of the dam to facilitate operational and structural improvements to the dam. A…

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DeCordova Bend Dam GPR

The DeCordova Bend Dam forms the Lake Granbury Reservoir on the Brazos River southeast of Granbury, TX and was constructed between 1966 and 1969. In conjunction with other consultants, BDI performed concrete material sampling and a nondestructive evaluation (NDE) at select portions of the dam to facilitate operational and structural improvements to the dam. A…

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CLT Instrumentation

Charlotte Douglas International Airport (CLT) is undergoing a major expansion with the addition of a fourth parallel runway. Scheduled to open in 2027, the new 10,000-foot runway is designed to accommodate increasing passenger traffic and enhance operational efficiency. To support their research on pavement performance, the University of North Carolina at Charlotte (UNC Charlotte) partnered…

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CDOT Load Ratings

The Colorado Department of Transportation (CDOT) required updated load ratings for a series of off-system bridges. In collaboration with Benesch Engineering, BDI conducted load ratings for 36 prestressed concrete bridges in accordance with AASHTO LRFR and CDOT rating specifications. Using AASHTOWare Bridge Rating (BrR) software, BDI delivered efficient and accurate analyses, supporting CDOT’s efforts to…

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Bonnet Carre Spillway Visual Inspection

The I-10 Bonnet Carre Spillway Bridges are twin bridges carrying I-10 EB and WB over the Bonnet Carre Spillway and Lake Pontchartrain. The bridges, completed in 1972, are each 11 miles long. The superstructures are comprised of prestressed concrete girder and steel girder spans with reinforced concrete deck. The substructures are comprised of primarily reinforced…

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Big Creek Dams 5 and 6 Concrete Material Testing

Big Creek Dams 5 and 6 impound water along Big Creek near Big Creek, California and were constructed in 1921 and 1923, respectively. New increases to minimum instream flows (MIF) require increasing the diameter of existing MIF conduits through the dams. The dam owner contracted a consultant to design the larger MIF conduits and associated…

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Big Creek Dams 5 and 6 – Anchor Testing

Big Creek Dams 5 and 6 impound water along Big Creek near Big Creek, California and were constructed in 1921 and 1923, respectively. New increases to minimum instream flows (MIF) require increasing the diameter of existing MIF conduits through the dams. The dam owner contracted a consultant to design the larger MIF conduits and associated…

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