Tennessee Department of Transportation’s State Route 107/Sgt. Elbert Kinser Bridge Replacement

Tennessee Department of Transportation’s State Route 107/Sgt. Elbert Kinser Bridge Replacement is a rapidly delivered, technology‑driven emergency project that restored a critical community lifeline while building lasting resilience. Remnants of Hurricane Helene caused historic flooding across East Tennessee, sending a 70‑foot wall of water through Greene County and destroying the SR 107 bridge. Compounding the damage, the Nolichucky River altered its course, leaving unstable banks and unpredictable hydraulic conditions that made traditional construction methods unviable. Required detours exceeding 30 minutes delayed emergency response and placed the region’s economic stability at risk. In response, Tennessee DOT launched the SR 107 Emergency Bridge Replacement with one urgent mission: restore safe access as quickly as possible while delivering a structure capable of withstanding future extreme weather events. The project marked Tennessee DOT’s first Progressive Design‑Build delivery and became a statewide model for accelerating recovery without compromising safety, quality, or environmental stewardship. Crews mobilized, and work began within 72 hours of the disaster. The $60.44 million project served as a proving ground for innovation born of necessity. Progressive Design‑Build, real‑time hydraulic and geotechnical modeling, three-dimensional design technology, digital scheduling platforms, and extensive use of precast components allowed design and construction to advance simultaneously. An engineered temporary causeway enabled safe access to the site and was later repurposed for long‑term riverbank protection. Today, restored connectivity supports emergency response, school access, freight movement, and local businesses, while the resilient design reduces long‑term maintenance needs and strengthens economic stability for the region.

Leave a comment