Left turns from Powers Boulevard (CO 21) to Research Parkway relocated for interchange reconstruction

Travel Advisory

October 29, 2021 - Southeastern Colorado

Research Parkway Traffic Pattern

COLORADO SPRINGS — The Colorado Department of Transportation will close and relocate the existing left turn lanes from Powers Boulevard (CO 21) and Research Parkway in order to construct a portion of the new on- and off-ramps as part of the new Diverging Diamond Interchange (DDI). During this closure, left turns will be relocated north and south of Research Parkway on Powers Boulevard (CO 21). Vehicles will utilize the new signaled turnarounds and proceed back onto Powers Boulevard (CO 21) and turn right onto Research Parkway. Business and school access will remain open. 

Relocation of the left turn lanes will allow crews to mobilize earthwork and pave the new on- and off-ramps as well as the bridge. The new configuration will go into place Thursday, November 4. This closure will significantly reduce the construction timeline, reduce the need for noisy night time work activities and provide a safer temporary roadway condition to motorists and the project team. 

Once completed, the new Diverging Diamond Interchange will increase the flow of traffic by allowing free-flowing turns when entering and exiting Powers Boulevard (CO 21) from Research Parkway by eliminating left turns against oncoming traffic and reducing the number of traffic signals. In addition to building the new Diverging Diamond Interchange structure, with Powers Boulevard (CO 21) going over Research Parkway, the project will include new pavement to three miles of Powers Boulevard (CO 21) and add pedestrian/bicycle enhancements to improve access to schools in the area. The project is in response to the growth in the northeastern area of Colorado Springs along the Powers Boulevard (CO 21) corridor and is part of CDOT’s on-going effort to improve interchanges along the corridor.

Speed reductions to 45 MPH on Powers Boulevard (CO 21) and to 35 MPH on Research Parkway will be in place. Motorists should expect delays. 

All scheduled closures are weather permitting.To learn about project phases, funding procurement and the future configuration, please visit our Virtual Open House.

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