Projects

Traffic Impacts

For the week of June 11

General Overview

Southern Section Alignment: As progress continues in the southern section of the project on I-25 between Monument and Greenland, motorists will start to see wider lanes, less barrier and more permanent pavement in the area. Even with the improvements in this area, please remember it is still an active construction zone. Stay in the marked lanes, follow posted speed limits and make sure to keep a safe distance between you and the vehicle in front of you!

Remember: All construction schedules described below are weather-dependent and could change. 


Southbound I-25 Off-Ramp to County Line Road Closed

Overnight Tuesday, June 15, from 8 p.m. to 5 a.m., crews will require a closure of the southbound I-25 off-ramp to County Line Road (exit 163) for a traffic shift. For access to County Line Road, continue south on I-25 and turn around using the CO 105 interchange (exit 161).

Detour map for closure of southbound I-25 off-ramp

Northbound I-25 Ramps at Greenland Road Closed 

Overnight Wednesday, June 16, from 8 p.m. to 5 a.m., crews will require a closure of the northbound I-25 on- and off-ramps at Greenland Road (exit 167) for a traffic shift. For access to northbound I-25, head south on I-25 and turn around using the County Line Road interchange (exit 163). For access to Greenland Road, continue north on I-25, exit at the Upper Lake Gulch Road interchange (exit 172) and use the southbound I-25 off-ramp to Greenland Road.

NB on.jpgNB off.jpg

Watch for Intermittent Lane Closures

Overnight Wednesday, June 16, from 10 p.m. to 2 a.m., crews will require intermittent lane closures of southbound I-25 between Greenland Road (exit 167) and State Highway 105 (exit 161) for sign bridge installations. Motorists expect delays up to 20 minutes.

Overnight Thursday, June 17, from 10 p.m. to 2 a.m., crews will require intermittent lane closures of northbound I-25 between Baptist Road (exit 164) and Greenland Road (exit 167) for sign bridge installations. Motorists expect delays up to 20 minutes.

10-hour Northbound I-25 Single Lane Closure

Overnight Friday, June 18, from 7 p.m. to 5 a.m., crews will require an extended single lane closure of northbound I-25 between Greenland Road (exit 167) and Upper Lake Gulch Road (exit 172) for drainage installation. Motorists should expect delays and stay the course of northbound I-25.

Watch for One-Way Traffic for Deer Guard Installation

Watch for crews as they install deer guard (much like cattle guard) along roadways parallel to Interstate 25. Please pay extra attention while driving the areas listed below. All work is weather-dependent and subject to change. 
 

Estimated Start Date Duration Location Traffic Control
Beginning Thursday, June 17 2 to 3 weeks Greenland Road, east of the I-25 interchange Temporary signal for one-way traffic

 
These deer guards are part of the I-25 South Gap project's wildlife safety mitigation efforts, which are expected to reduce animal-vehicle crashes by 90%. Thank you for your patience. Please email [email protected] if you have any questions! 

Closures

* Remember: planned lane closures can be affected by weather. 

Closures Banner


Description Time Frame Work Detour

Overnight single lane closures northbound and southbound I-25
between Plum Creek Parkway and Monument

Sunday - Friday
June 13 - 18
8 p.m. to 5 a.m.

Guardrail and pothole repairs, guardrail removal, grading, traffic shifts, striping operations, pavement work, paving operations, fiber testing, emergency pull-out sign placement and barrier work.

One lane open in each direction of I-25.
Stay the course!

Full closure of the southbound I-25 off-ramp to Upper Lake Gulch Road

Ongoing closure until further notice
(Began Oct. 25, 2019)

Bridge demo and rebuild.

 

To access northbound I-25 from Larkspur, motorists should use the Upper Lake Gulch Road on-ramp to northbound I-25.

To access Larkspur from southbound I-25, motorists should use the southbound I-25 off-ramp to Spruce Mountain Road.

Full closure of the Upper Lake Gulch on-ramp to northbound I-25

Ongoing closure 
(Began in November 2020)

Bridge demolition and 
reconstruction; work on mainline I-25

Access northbound I-25 from the new Spruce Mountain Road bridge

Shoulder closures along northbound and southbound I-25 throughout the 18-mile project corridor.  

Monday - Friday
June 14 - 18
8:30 a.m. to 4 p.m.

Earthwork and erosion control

One lane open in each direction of I-25. 
Stay the course!

Frontage Road Banner

Description Time Frame Work Detour
Single lane closures and flagging operations
along East and West Frontage Roads 
Plum Creek Parkway and Sky View Lane (Tomah Road)

Monday - Friday
June 14 - 18
8:30 a.m. to 4 p.m.

Installation of fiber optic lines,
frontage road repairs and install
guardrail
Watch for flaggers who will direct traffic.
Residential access will be maintained. 
Thank you for your patience!
Flaggers will be present at the County Line Road, Greenland Road and Upper Lake Gulch Road interchanges to I-25.

Monday - Saturday
June 14 - 19 
8:30 a.m. to 4 p.m.

Bridge work Watch for flaggers who will direct traffic.
Residential access will be maintained. 

Project Offices in Castle Rock

A temporary construction office for CDOT and its contractor partner, Kraemer North America, is located near the intersection of Crystal Valley Parkway and the I-25 east Frontage Road. Please watch for vehicles entering and exiting the site throughout the duration of construction. Upon project completion, the area will be returned to its previous state; the asphalt will be removed and the area will be re-graded and seeded.


Safety for drivers and workers is our top priority during construction.

 Get project text alerts:
Text I25GAP to 21000.

 Get project emails:

* indicates required