The Colorado Department of Transportation (CDOT) announces that contractor United Companies has completed resurfacing a seven-mile section of Colorado Highway 133, from the summit of McClure Pass to about one mile south of the Town of Redstone.
The project utilized Hot-In-place Recycling (HIR), an innovative and efficient process that repairs and rehabilitates deteriorated highways with specialized equipment. In a HIR process, 100% of existing road material is rejuvenated, reused and mixed with small quantities of new asphalt, resulting in less waste and fewer truck trips to bring in new materials. The HIR process also proceeds much faster than a conventional overlay, moving at 20 to 40 feet per minute, and allows two to four lane miles of roadway to be repaired daily.
Total costs are reduced by about 40 percent compared to a traditional asphalt removal and replacement project, according to SGM Project Engineer Mike Fowler. "Hot In-place recycling was a very good application for this segment of CO 133, that was still in relatively good condition, but needed some preventative maintenance to avoid a much costlier replacement project in the future," he said.
Crews also replaced and upgraded 12,000 linear feet of guardrail as part of this project. The recently completed chip seal was the final step in the process. In addition to providing a more skid-resistant driving surface, a chip seal extends the life of a roadway by providing a protective top coat. The chip seal layer helps to shed water and keep it from seeping into the asphalt and freezing, which causes cracks and potholes, and is why CDOT does chip seal operations on a periodic basis when the underlying pavement is still in good condition.
Earlier this year a similar treatment was applied on Highway 133 along the segment by Somerset and Paonia Reservoir.