Helm Civil was the prime contractor on the successful I-74 River Bridge Demolition, a project requiring the removal of 4,250 LF twin suspension bridges and viaduct spans over the Mississippi River. As the general contractor, Helm leveraged its expertise in marine work and complex bridge demolition to navigate stringent environmental regulations, limited site access, and tight timelines. Innovative solutions, including a floodable jacking barge with a support tower for truss removal and controlled explosives for tower and suspension cable demolition, ensured precise and efficient execution while protecting the surrounding environment. 

With a commitment to safety, efficiency, and engineering excellence, Helm Civil completed the project under budget, on schedule, and with nearly 100,000 accident-free-hours. Our ability to develop and implement advanced demolition techniques, such as sheeting containment cells to safeguard endangered mussels, highlights our industry leadership in tackling complex infrastructure challenges. Helm’s performance on this project reinforces our reputation as a trusted partner for high-stakes, large-scale demolition and construction projects.