Transportation
Emergency Monitoring of Bridge Closed Due to Settlement
BDI was engaged by the Virginia Department of Transportation (VDOT) to support emergency monitoring efforts at the Route 644 bridge over the Meherrin River in Brunswick County, VA. The bridge had been closed due to settlement at its central pier, possibly due to scour, which prompted the need for real-time tracking of structural movement during…
Read MoreMonitoring the Marine Parkway Bridge for Long-Term Performance
BDI was selected to design and install a permanent structural health monitoring (SHM) system for the Marine Parkway Gil Hodges Memorial Bridge in New York City. Working in collaboration with CRC Associates and the Triborough Bridge and Tunnel Authority (TBTA), BDI developed a custom monitoring solution as part of mechanical and electrical upgrades to this movable bridge…
Read MoreStructural Evaluation of I-81 Bridges Following Concrete Repairs
The Virginia Department of Transportation engaged BDI to perform a comprehensive structural evaluation of two twin reinforced concrete T-beam bridges along Interstate 81 in Smyth County, VA — an essential corridor for heavy truck traffic. After a construction contractor completed concrete repairs, including the application of a latex-modified concrete (LMC) overlay to the bridge decks,…
Read MoreValidating Concrete Overlay Performance on a Key Interstate Corridor
To ensure the long-term performance of two twin reinforced concrete T-beam bridges carrying Interstate 81 over Tattle Branch Road in Smyth County, Virginia, the Virginia Department of Transportation (VDOT) engaged BDI to evaluate recent concrete repairs. These bridges serve a vital role on a heavily traveled truck route, making structural reliability a top priority. Following the contractor’s application…
Read MoreDrone-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…
Read MoreUSDA 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…
Read MoreCLT 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…
Read MoreCDOT 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…
Read MoreBonnet 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…
Read MoreBCR BMW – Heavy Haul
Supporting Safe Heavy Transport for BMW Spartanburg Expansion In support of Barnhart Crane & Rigging’s (BCR) 2023 transport operations to the BMW Spartanburg Plant in Greer, South Carolina, BDI was engaged to provide structural evaluation services critical to the transport permitting process. BCR’s project involved hauling superheavy equipment with gross vehicle weights ranging from 746…
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