As prime consultant, H&H is leading the replacement of the Connecticut River Bridge, a critical rail crossing just north of Long Island Sound, serving Amtrak, Providence and Worcester Railroad, and the Connecticut Department of Transportation Shore Line East service.
Originally constructed in 1907, the existing bridge has reached the end of its useful life, creating reliability challenges for both rail and maritime traffic. This project replaces the aging structure with a modern, resilient crossing that improves safety, strengthens system performance, and supports uninterrupted movement along the Northeast Corridor.
H&H’s role includes conceptual planning through final design and construction support, bringing together structural, geotechnical, rail systems, environmental permitting, and stakeholder coordination into a single, integrated approach. The result is an 11,600-foot, two-track movable bridge designed for a 70-mph operating speed, meeting current standards while maintaining service during construction through carefully staged upgrades to the catenary and signal systems. This approach reflects a consistent, scalable delivery framework that supports complex infrastructure programs from concept through construction.
At the heart of the design is one of the longest fixed trunnion bascule spans in the world. Innovative features, including a split counterweight system, redundant drive mechanisms, and advanced bearing configurations, enhance reliability, reduce maintenance demands, and provide long-term value for owners and operators.
Designed with the future in mind, the new bridge meets modern seismic criteria, accounts for sea level rise, and incorporates elevated mechanical and electrical systems for added resilience. A new control house and covered accessways also improve day-to-day operations and worker safety.
This project demonstrates how integrated expertise, disciplined delivery, and accessible leadership come together to help clients deliver critical infrastructure with confidence, today and into the future.
