CO 145 / US 550 Deep Patch & Wall Repairs

Project completed

About the Project

U.S. Highway 550, MP 90, two miles south of Ouray in Ouray County (10-foot width restriction will be in place at this location)
Work involves 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
Colorado Highway 145, mile point (MP) 24.5, about 12 miles north of Dolores in Montezuma County (10-foot width restriction will be in place at this location):
Work involves a ‘deep patch’ repair of the roadway and installation of a new rock buttress that provides slope stability underneath the roadway; guardrail replacement
CO 145, MP 49, about three miles north of Rico in Dolores County
Work involves removing the existing retaining wall material below the edge of the roadway; installing micro-piling and concrete pile caps with new back-fill material to secure the slope; follow-up highway surface repair; guardrail replacement

Cost: $1.5 million
Contractor: Oldcastle SW Group, Inc.
Timeline: April to October 2020
Location: CO 145 (MP 24.5) north of Dolores; CO 145 (MP 49) north of Rico; US 550 (MP 90) south of Ouray

US 550 South of Ouray (MP 90): Late July into October 2020