Frequent swing‑span openings on an aging US 17 bridge over the Neuse River caused chronic delays for motorists and vessel traffic and contributed to mounting safety concerns. By the early 1990s, the structure had fallen into severe disrepair, prompting the North Carolina Department of Transportation to advance what became the largest transportation public works project in the state at the time. STV served as the lead engineer and management consultant, guiding the planning, design and delivery of a landmark replacement bridge that enhances mobility, resilience and long‑term reliability for the New Bern region.
What challenges did STV address?
The new structure needed to accommodate hurricane‑force winds, vessel impacts and the navigational demands of a major waterway. Eliminating delays caused by the existing swing span required a high‑level fixed bridge with significantly improved geometry. The project also needed to weave a complex three‑level interchange into the surrounding transportation network, integrating eight ramp and loop bridges – some extending up to 3,000 feet.
What solutions did STV deliver?
After conducting a feasibility study, STV designed a 10,000‑foot‑long curved steel plate girder bridge that provides improved clearance and structural resilience. The team engineered advanced impact‑resistant features, mounted navigation lighting and an aircraft warning system. STV also designed the full three‑level interchange and guided planning and project management for the initiative. Despite four major hurricanes during construction, the project finished three months early and $26 million under budget.
How does this project benefit the community?
The new bridge reduces congestion, eliminates delays caused by swing-span operations, and provides a safer, hurricane-resistant crossing for residents, freight operators and visitors. Its improved interchange configuration supports smoother regional travel and strengthens long‑term mobility in a growing coastal area.
Key stats and accolades
- 10,000‑foot‑long curved steel plate girder bridge
- Three‑level interchange with eight ramp and loop bridges
- Completed three months early and $26 million under budget
- Named the sixth most significant engineering project in North Carolina history by ASCE
