Transportation

When a fuel tanker accident caused extensive fire damage to the Sikanni Chief River Bridge—a prestressed concrete bridge along the Alaska Highway in northern British Columbia—swift, expert evaluation was essential to restore safe passage on this key transportation corridor. Therefore, WSP engaged BDI to support the emergency structural assessment efforts following the incident. Our role was…

Carrying I-275 over Tampa Bay, the Bob Graham Sunshine Skyway Bridge is a cable-stayed structure that plays a vital role in Florida’s transportation network. To support long-term performance monitoring and asset management, the Florida Department of Transportation (FDOT) contracted BDI to install a structural health monitoring system focused on capturing vibration behavior of the bridge.…

Fremont, Ballard, and University Bridge are double-leaf bascule bridges located in Seattle, WA. All three bridges operate frequently, with Fremont in particular being one of the most frequently opened moveable drawbridges in the US. The bridges also have significant historical and aesthetic significant to Seattle, and are all listed on the National Register of Historic…

The Robert O. Norris, Jr. Bridge is slated for replacement beginning in 2028. In the interim, critical repairs are underway to ensure the bridge continues to safely serve the surrounding communities. These repairs are scheduled for completion by September 2026. BDI is proud to support the Virginia Department of Transportation (VDOT) in this important effort.…

As part of the evaluation of the Newark Airport Monorail Guideway, BDI completed live-load testing, deflection modeling, and a 90-day continuous monitoring program to assess how the guideway was performing under real-world operating conditions. Instrumentation was installed at three representative sections of the guideway, with sensors placed on both the track girders and supporting piers.…

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…

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…

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,…