CO 340 Redlands Roundabout

Work this Week
Aug. 13-17

Crews will install light poles, pull wire, install Americans With Disabilities Act (ADA)-compliant ramps at site A, patch asphalt and pave.

Project Facts

  • Cost: $5 million
  • Contractor(s): Elam Construction
  • Location: On CO 340 from mile point (MP) 8.5 to MP 9.63 in Mesa County, west of Grand Junction

Crews on this project are converting the existing Colorado Highway 340 (Broadway) and Redlands Parkway intersection into a roundabout. The team also will resurface the roadway, reconstruct pavement, improve guardrail and drainage, stripe, and upgrade sidewalks to comply with the Americans With Disabilities Act (ADA).


From 2010 to 2015, there were 28 at this intersection, the vast majority of which were left-turning, rear-vehicle collisons. Improving the safety of the CO 340 and Redlands Parkway intersection is CDOT's top goal, in addition to enhancing aesthetics of the intersection and addressing future projected traffic volumes.

Because roundabouts are so effective at reducing these types of accidents, CDOT can improve the safety at the intersection by constructing a roundabout.

Phase 3

Schedule & Traffic Impacts

  • Hours: 12 hours a day, Monday through Friday
  • There is an 9-foot width restriction for the duration of the project (no semi trailers allowed).

Phase 3 Overview

Work will consist of:

  • installing Americans with Disabilities Act (ADA) -compliant ramps, sidewalk, curbs and gutters, and wing walls and head walls;
  • and milling and paving, and overlaying the road with hot mix asphalt.
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