Redlands Parkway Roundabout
ABOUT THE PROJECT
This $5 million project for CDOT converted the existing signalized intersection at SH 340 (Broadway) and Redlands Parkway in Colorado to a roundabout. Ulteig provided construction management, inspection and public information services. The project’s top goal was to decrease accidents at the intersection, the vast majority of which were rear-end and left-turning accidents.
LISTENING TO OUR CLIENT
CDOT asked to keep the intersection open throughout project. The Ulteig team designed a temporary roundabout, which allowed traffic to continuously flow without stopping construction. The temporary roundabout also helped expedite the project timeline.
By eliminating the need for short-term traffic light signals and a reduction in other traffic control devices, the temporary roundabout design saved approximately $250,000. Most important, there were zero CDOT-reportable accidents when the temporary roundabout was in effect. The final roundabout has reduced the queue at the intersection from one minute, 35 seconds to 25 seconds.