The Rainbow Bridge is a historic steel through-arch bridge spanning the Neches River, connecting Port Arthur and Bridge City in Southeast Texas. Completed in 1938,
the structure was engineered with a 680-foot main span and approximately 177 feet of vertical clearance, allowing large maritime vessels to navigate the busy
industrial waterway below. The bridge served as a critical transportation link for the region and is recognized for its engineering significance, earning a place on the
National Register of Historic Places. Today, the structure continues to play an important role in regional mobility while standing as one of the most recognizable bridges in Southeast Texas. Southern Road & Bridge performed extensive maintenance and structural rehabilitation on the bridge as part of a Texas Department of
Transportation preservation initiative. The work focused on restoring key structural elements and improving long-term durability to ensure the historic crossing
remains safe and reliable for the communities and industries that depend on it.
- OWNER: Texas Department of Transportation
- PROJECT NO: 02243009
- DURATION: 269 Working Days
- COMPLETION DATE: April 2026
- WORK PERFORMED:
- Full-depth concrete deck restoration to repair and strengthen the bridge driving surface
- Structural steel railing repairs along the bridge span
- Replacement of 1,200 structural rivets critical to maintaining the bridge’s steel connections
- Replacement of four steel member pins, essential components supporting the bridge’s structural integrity
- Coordinated construction operations during a full bridge closure with regional traffic diverted to nearby crossings
- Accelerated project execution resulting in completion ahead of the original construction schedule
