Military Access, Mobility & Safety Improvements Project Update Week of May 21

Travel Advisory

May 19, 2023 - Southeastern Colorado - Southbound Interstate 25 closure for overhead sign structure installation

Colorado Springs — As part of the Military Access, Mobility & Safety Improvement Project (MAMSIP), the Colorado Department of Transportation and contractor SEMA Construction will close southbound Interstate 25 at South Academy Boulevard on Tuesday, May 23 and Wednesday, May 24 from 10 p.m. to 4 a.m., to install an overhead sign structure just north of the CO 16/Fort Carson Gate 20 Interchange. This closure is necessary to maintain safety for the traveling public.

Northbound I-25 traffic will be diverted at Mesa Ridge Parkway to use the Mile Point 132 off- and on-ramps to continue on northbound I-25 on Tuesday and Wednesday night from 9 p.m. to 5 a.m.

Also, there will be a right lane closure on southbound I-25 from South Academy Boulevard to Santa Fe Avenue on Monday, May 22 and Tuesday, May 23 from 10 a.m. to 2 p.m. for erosion control maintenance.

These closures are necessary for the safety of the traveling public.

Detour for southbound I-25 will be in place:

  • Southbound I-25 traffic will take Exit 135 off-ramp to eastbound South Academy Boulevard
  • Traffic will be diverted south to US 85/87 (CanAm Highway) where they will re-enter southbound I-25
  • Northbound I-25 traffic will take exit 132 off-ramp and re-enter the on-ramp to continue north
  • Possible traffic slowdowns, expect delays
  • Plan additional time to travel through the area
Detour Map for Southbound I-25 Closure
Detour Map for Southbound I-25 Closure

Traffic Impacts

Overhead sign structure installation on southbound I-25 (MP 132)

  • Tuesday, May 23 and Wednesday, May 24, 10 p.m. to 4 a.m.
    • Full closure of southbound I-25 (MP 135-132)
    • Detour of southbound I-25 at South Academy Boulevard
  • Tuesday, May 23 and Wednesday, May 24, nightly 9 p.m. to 5 a.m.
    • Northbound I-25 traffic will utilize off- and on-ramps to continue northbound on I-25 at MP 132

Erosion control maintenance

  • Monday, May 22 and Tuesday, May 23 from 10 a.m. to 2 p.m.
    • Southbound I-25 right lane closure from South Academy Boulevard to Santa Fe Avenue

Project Overview

Interstate 25 – Safety and Efficiency Improvements

The improvements to I-25 addressed in this project are located along an approximately 7.5-mile segment of south I-25 beginning at South Academy Boulevard and extending to the Santa Fe Avenue (U.S. 85/87) exit at Fountain (MP 128), which exits to Gate 19 of Fort Carson. The project includes:

  • Replacement of two bridges crossing over South Academy Boulevard
  • Widening of both inside and outside shoulders and installing safety improvements
  • Concrete surface treatment overlay to provide an improved riding surface
  • Installation of median barrier
  • Rehab and widening work on four bridges
  • Installation of an I-25 southbound deceleration lane at the interchange with CO 16

Safety Benefits

CDOT conducted a safety assessment for the corridor to evaluate the magnitude and nature of safety problems and analyze the causes of crashes. These transportation improvements are mitigation measures to reduce crashes, improve infrastructure, and address physical deficiencies that contribute to crashes in the corridor. Over the next 20 years, the project is estimated to result in fewer deaths, injuries and crashes on the four MAMSIP corridors.

Project Information

About the Military Access, Mobility & Safety Improvement Program Build Grant

Colorado Department of Transportation (CDOT) has initiated a program to deliver more efficient and safer mobility along I-25, Colorado Highway 94, South Academy Boulevard, and Charter Oak Ranch Road, enabling economic stability and development. The Military Access, Mobility & Safety Improvement Program is partially funded through an $18 million BUILD grant award from the US Department of Transportation. The delivery of these improvements will strengthen and enhance the redundancy of strategic movement between the nationally significant El Paso County military installations of Fort Carson, Peterson Space Force Base, Cheyenne Mountain Space Force Station, and Schriever Space Force Base.

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.
  • Stay Alert! Expect the unexpected.
  • Watch for workers. Drive with caution.
  • Don't change lanes unnecessarily.
  • Avoid using mobile devices such as phones while driving in work zones.
  • Turn on headlights so that workers and other drivers can see you.
  • Be especially alert at night while driving in work zones.
  • Expect delays, especially during peak travel times.
  • Allow ample space between you and the car in front of you.
  • Anticipate lane shifts and merge when directed to do so.
  • Be patient!

Download the COtrip App!

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