CO 21 Powers Blvd. & Research Parkway Interchange Construction

Work this Week
July 31 - August 4, 2022

On July 31 northbound CO 21 traffic will be shifted onto the Cottonwood Creek between Woodmen Road and Research Parkway. Shifting traffic onto the new portion of the roadway will allow crews to continue interchange reconstruction and complete the new roadway as part of the CO 21 and Research Parkway Diverging Diamond Interchange Project.

On the night of July 31, crews will conduct single lane closures on CO 21 between Woodmen Road and Briargate Parkway to safely shift traffic to the west onto the new portion of the bridges. Motorists should expect delays.

Crews are currently constructing Research Parkway under the new CO 21 bridge as part of the Diverging Diamond Interchange. Crews will continue earthwork operations, median work, pave the new roadway and install new signal, light poles and overhead signage.

Traffic Impacts for the Week of July 31, 2022 include:

  • 9 p.m. until 6 a.m., Sunday, July 31:
    • Northbound CO 21 single lane closures between Woodmen Road and Briargate Parkway.
  • 9 a.m. until 3 p.m., Monday, Aug. 1 through Friday, Aug. 5:
    • Single lane closures and lane shifts on Research Parkway between CO 21 and Channel Drive to perform roadway removals for future paving.
  • 9 a.m. until 3 p.m., Wednesday, Aug. 3 through Friday, Aug. 5:
    • Single lane closures and lane shifts on Research Parkway between CO 21 and Grand Cordera Parkway to perform median work.

Current roadway alignment:

CO 21 Research Parkway Opening Map

Current traffic configuration

Every spring, the Federal Highway Administration (FHWA) and its partners sponsor National Work Zone Awareness Week, to bring attention to motorist and worker safety and mobility issues in and around work zones. On April 11, crews celebrated Work Zone Safety Week with a pancake breakfast and safety review on the Powers and Research Project.  

Work Zone Safety Gathering at Powers Blvd.

New alignment of Research Parkway

SB Opening Map

Research Parkway is open across Powers Boulevard (CO21). Direct through-access is still restricted on Research Parkway, through the interchange. CDOT will continue bridge and ramp construction as part of the new Diverging Diamond Interchange (DDI). This traffic configuration will be in place until the full DDI has been implemented, to allow for a safer work zone. Current traffic alignment:

  • Research Parkway has no direct through access across Powers Boulevard.
  • Northbound and southbound Powers Boulevard (CO 21) continues to have no impacts.
  • Access to Powers Boulevard from Research Parkway on the west side is limited to southbound access only, northbound and through access uses the signalized U turn south of the interchange.
  • Access to Powers Boulevard from Research Parkway on the east side is limited to northbound access only, southbound and through access uses the signalized U turn north of the interchange.
  • Crane mobilization is currently taking place onsite for future girder installation for bridge construction. Please use caution around heavy equipment in use on the project.
  • Other construction operations continue as crews work on the new southbound Powers Boulevard on-and off-ramps, continue constructing the new bridge, perform earthwork operations, future signal installation and curb and gutter installation.
Project Milestone

In a major milestone for interchange reconstruction, CDOT has set girders on the new Powers Boulevard (CO21) bridge over Research Parkway. Crews set sixteen total girders across the new bridge during two nighttime operations last week, see pictures and time lapse video below. Future operations for bridge construction include deck panel construction, pouring the new concrete deck and tying-in the new roadway to the bridge. Once completed the new Powers Boulevard bridge will increase traffic flow and allow free-flowing turns to and from Research Parkway. This project is part of CDOT’s on-going effort to improve interchanges along the corridor.

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.