CO 21 Powers Blvd. & Research Parkway Interchange Construction

Ongoing through December

Powers Boulevard and Research Parkway Interchange project will close and relocate the existing left turns lanes at the Powers Boulevard (CO 21) and Research Parkway interchange 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. There will be no impacts to business or school access.

CO 21 Research Pkwy Left Turn Map

Powers and Research Extended Closure

To significantly reduce the construction timeline, reduce construction costs to the taxpayer, reduce the need for noisy nighttime work activities, and provide a safer temporary roadway condition to the travelling public and project team the Colorado Department of Transportation will conduct a two-month closure of Research Parkway from the west side of Powers Boulevard (CO 21) to Channel Drive. 

This closure will restrict access on Research Parkway east of Powers Boulevard to construct a large portion of the new Diverging Diamond Interchange (DDI).  The two-month closures will be in effect 24/7 beginning early November.

During this closure northbound and southbound Powers Boulevard (CO 21) will not be impacted, but there will be no access to Powers Boulevard (CO 21) from Research Parkway on the west.

Not only will this closure improve safety for the public, but it will also accelerate the earthwork and initial bridge construction needed to raise Powers over Research, as well as the underground drainage work within Research. Business and school access will remain open with no impacts through the duration of the Research Parkway closure.

Powers and Research Extended Closure Map

Suggested detours:

  • Eastbound Research Parkway and Powers Boulevard bound traffic from the west side will turn left on Austin Bluffs Parkway, continue north to Briargate Parkway and turn right. Continue east to access Powers Boulevard (CO21) or continue to Grand Cordera Parkway, turn left and continue south to access Research Parkway
  • Westbound Research Parkway and Powers Boulevard bound traffic from the east side will turn right on Grand Cordera Parkway, continue north to Briargate Parkway and turn left. Continue west to access Powers Boulevard (CO21) or continue to Austin Bluffs Parkway, turn left and continue south to access Research Parkway.

Virtual Open House Presentation

Presentation Cover Page

Click the image to view the Presentation

About the Project:

The Colorado Department of Transportation is moving quickly to put stimulus funding to work in southeastern Colorado. Along with contractor partner Kraemer North America, CDOT will begin work on June 24 to improve the safety and accessibility of Powers Boulevard/Colorado Highway 21 between Mile Points 149 and 151 at Research Parkway.

Work will consist of replacing the current at-grade intersection with an innovative Diverging Diamond Interchange and constructing an overpass for Powers Boulevard/ Colorado Highway 21 traffic to move continuously through the intersection over Research Parkway (pictured below). In addition to building the new Diverging Diamond Interchange structure, with Powers Boulevard going over Research Parkway, the project will include new pavement to three miles of 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 corridor and is part of CDOT’s on-going effort to improve interchanges along the corridor.

Project Facts

  • Cost: $42 Million
  • Contractor: Kraemer North American
  • Timeline: May - November 2022
  • Location: Powers Boulevard (CO 21) at Research Parkway in El Paso County

Rendering of DDI

Powers Blvd. & Research Pkwy Bridge Rendering
(Click image to enlarge)

Powers aerial rendering

Powers Blvd. & Research Pkwy (Aerial) DDI Rendering
(Click image to enlarge)

Project Benefits:

The new Diverging Diamond Interchange will increase the flow of traffic by allowing free-flowing turns when entering and exiting Powers Boulevard/Colorado Highway 21 from Research Parkway by eliminating left turns against oncoming traffic and reducing the number of traffic signals.

How to Drive a DDI
CDOT Puts Stimulus Funding to Work for Coloradoans


Work Schedule

  • Work is scheduled to begin June 2021 and be completed by Fall 2022.

Traffic Impacts

  • 9 a.m. until 3 p.m., Monday, Nov., 1, Tuesday, Nov. 2, Thursday, Nov. 4 and Friday, Nov. 5:
    • Eastbound and westbound Research Parkway single lane closures between Channel Driver and Grand Cordera Parkway
  • 7 p.m. until 5 a.m., Thursday, Nov. 4:
    • Eastbound and westbound Research Parkway single lane closures and turn lane closures between Grand Cordera Parkway and Channel Drive
  • 9 p.m. until 6 a.m., Tuesday, Nov. 2 through Thursday, Nov. 4:
    • Northbound and southbound Powers Boulevard single lane closures between Woodmen Road and Briargate Parkway