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November 2026

New I-25 Auxiliary Lanes Improve Safety and Traffic Flow in Colorado Springs

COLORADO SPRINGS, CO — The Colorado Department of Transportation (CDOT) and its contract partner, SEMA Construction, have substantially completed improvements along Interstate 25 between Fillmore Street and Garden of the Gods Road in Colorado Springs, Colorado. CDOT held a ribbon cutting to celebrate the project’s progress, along with the Powers Boulevard (Colorado Highway 21) and Airport Road Diverging Diamond Interchange Project, and the collection of projects known as MAMSIP (Military Access, Mobility, and Safety Improvement Project).

"What we've delivered in this region through the CDOT 10-Year Plan and what we continue to deliver is a story of people coming together from across different levels of government," CDOT Executive Director Shoshana Lew said. "This celebration shows progress and is really an endorsement for the collaborative partnership that has happened here in El Paso County."

As part of CDOT’s 10-Year Plan, this project added continuous acceleration and deceleration lanes in both directions of I-25, improving traffic flow and providing motorists with additional space to safely merge onto and exit the interstate. CDOT’s 10-Year Plan is Colorado’s roadmap for prioritizing and investing in critical transportation projects across the state over the next decade.

"In 2019, CDOT launched an ambitious initiative to establish long-term transportation priorities culminating in the adoption of the 10-year strategic plan in 2020," District 9 Colorado Transportation Commissioner Hannah Parsons said. "It's a privilege for me as a Colorado Transportation Commissioner to see the completion of these vital projects."

In addition to the added lanes, the project included resurfacing I-25, curve slope adjustments to improve roadway drainage, the addition of concrete median barrier, and several safety-critical bridge improvements, including the reconstruction and widening of the I-25 bridges over Ellston Street and repairs to the bridge deck on the Garden of the Gods Road overpass.

The intelligent transportation system infrastructure was upgraded, including fiber optics and ramp-metering equipment. These improvements allow traffic conditions to be monitored and help adjust ramp-meter timing to better manage traffic flow and reduce backups.

“An important part of CDOT’s 10-Year Plan, this project addresses several important needs along this section of I-25,” Region Transportation Director Shane Ferguson said. “The new auxiliary lanes will help improve traffic flow and give drivers more space to safely merge and exit, while the bridge, roadway, and technology improvements will support the long-term safety and reliability of this corridor.”

The 10-Year Plan Strategic Project Pipeline, or “10-Year Plan”, is Colorado’s roadmap for prioritizing and investing in critical transportation projects across the state over the next decade. This 10-Year Plan is a targeted subset of CDOT’s broader Statewide Transportation Plan, Your Transportation Plan, translating long-term vision into an action-oriented investment strategy.

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Ditch Witch West