Wanapum Dam and Priest Rapids Dam, located on the Columbia River in central Washington, are hydroelectric dams which have operated since 1963 and 1961, respectively. The structures play a crucial role in the region’s power generation, along with supporting irrigation, recreation, and fish passage. Both dams are owned and operated by the Grant County Public…
Red Cliff Bridge is a cantilevered steel arch bridge located near Red Cliff, Colorado. Towering approximately 200 ft over Eagle river, it is one of Colorado’s most iconic bridges and has been listed on the National Register of Historic Places since 1985. The bridge was completed in 1941 and has required significant repair and restoration…
Project Description As part of Herbert, Rowland & Grubic, Inc.’s evaluation of cracking observed at the Mid-Centre County Wastewater Treatment Plant (WWTP), BDI was requested to help the evaluation process by monitoring key areas of the facility during operational and seasonal periods to aid in identifying the root cause of the deterioration found on site.…
BDI was contracted to provide the inspection, evaluation, and testing of the Marshall Space Flight Center Test Stand 4670 in Huntsville, Alabama, specifically levels 12-15. The Test Stand consists of four post-tensioned concrete legs that are 30 square ft along the top and 48 square feet along the bottom. These four legs support a platform…
BDI was contracted by Delta Oaks Group (DOG), Environmental Resources Management (ERM), and Dominion Energy to investigate a former landfill in Montrose, Virginia. The project team needed to better understand the extent and depth of a landfill cover that had been installed in 1978, despite the absence of historical construction records, site plans, or geotechnical…
BDI partnered with the Arkansas Department of Transportation (ARDOT) to perform a comprehensive nondestructive evaluation (NDE) of bridge decks within the I-30, I-440, and I-530 interchange in Little Rock, Arkansas. The project aimed to identify and map deck deterioration, providing a detailed assessment of overall bridge deck condition. To perform a full bridge deck evaluation…
BDI partnered with the Louisiana Department of Transportation and Development (LADOTD) to perform a comprehensive nondestructive evaluation (NDE) of four major I-10 bridge structures spanning the Reserve Relief Canal and Lake Pontchartrain. Covering approximately 18 miles of bridge deck, the project presented a unique inspection challenge that was efficiently addressed using BDI’s vehicle-mounted testing technologies.…
The Delaware Memorial Bridge, which carries I-295 across the Delaware River between Delaware and New Jersey, is a critical transportation link for the region. As part of preservation efforts the Delaware River Bridge Authority had an ultra-high performance concrete (UHPC) deck installed on the bridge deck. To evaluate the effectiveness of the repair, BDI was…
BDI partnered with engineers to support a routine National Highway Institute (NHI) bridge inspection of the I-380 Bridge over the Delaware and Lackawanna Railroad near Scranton, Pennsylvania. The bridge’s complex geometry and challenging access conditions made traditional bridge inspection methods less efficient, creating an ideal application for drone-based bridge inspection technology. To improve inspection coverage…
BDI was contracted by the Grant County Public Utility District to evaluate the condition of spillway gate anchor bars at Priest Rapids Dam in Washington State. As a key component of the Columbia River hydroelectric system, the dam relies on these concrete embedded anchor bars to safely support and operate its spillway gates. Because the…