The Colorado Department of Transportation announced on Apr. 17 that it has started repairs on seven culverts in Mesa and Montrose Counties, using advanced technology designed to extend the lifespan of these structures.
Culverts play a key role in keeping roadways safe by providing essential drainage. The department is implementing an advanced liner with a 50-year design life for six culverts along US Highway 50, from just east of Cerro Summit at Mile Point 108 to Cimarron at MP 112.3, and one under Interstate 70 near the Utah-Colorado border at MP 4.4. The project is scheduled to run from mid-April through August.
This technology allows crews to rehabilitate pipes without digging trenches or removing the existing pipe. The liner is pulled into place and inflated with a special tool, creating a smooth internal surface while minimizing disruption to traffic. According to the Colorado Department of Transportation’s official website, this approach reduces time spent on repairs and limits impacts for motorists.
Shoshana Lew, executive director for the Colorado Department of Transportation, said, “Though often invisible to drivers, culverts provide essential drainage that keeps roadways safe and operable. Several years ago, CDOT and the Transportation Commission worked to fund an initiative dedicated specifically to culvert repair, to ensure these vital assets are functioning properly for years to come. This innovative project is a direct result of that focused effort.”
Repairing culverts with inflatable liners typically takes only hours per site after clearing debris and cleaning each pipe; most operations are completed within one day per location. Lane shifts and shoulder closures are expected during working hours from Monday through Friday between 7 a.m. and 5 p.m., as outlined by project officials.
The Colorado Department of Transportation oversees transportation infrastructure across Colorado according to its official website. It builds and maintains interstates, U.S., and state highways while also supporting aviation and transit projects as reported by CDOT. The department aims for integrated solutions that enhance quality of life statewide according to its mission statement.
For real-time updates on this project or others across the state, motorists can visit COTrip.org.



