Colorado Department of Transportation and contractor Oldcastle SW Group Inc. have completed the project to repair and make safety improvements on Colorado Highway 145 and U.S. Highway 550 in Dolores, Montezuma and Ouray counties.
The project, completed ahead of schedule and under budget, has preserved the structural integrity of the highways with the repairs and reconstruction of retaining systems at the roadways’ shoulder edges. The work zones and work items included:
Colorado Highway 145, mile point 24.5, about 12 miles north of Dolores in Montezuma County. Work involved a “deep patch” repair of the roadway and installation of a new rock buttress that provides slope stability underneath the roadway.Guardrail replacement on Colorado Highway 145 about 3 miles north of Rico in Dolores County. Work involved removing the existing retaining wall material below the edge of the roadway, installing micropiling and concrete pile caps with new backfill material to secure the slope, and followup highway surface repair.Guardrail replacement on U.S. Highway 550, MP 90, 2 miles south of Ouray in Ouray County. Work involved retaining wall removal and replacement of two failing roadway sections with a crib wall system; follow-up highway surface repair and installation of new inlet and drainage culvert.For more information, visit www.codot.gov/projects/co145-us550-patchwallrepair.