Traffic Impacts
Week of Nov. 17, 2019
Thank you for driving safely through the 18-mile I-25 South Gap project. The barrier and narrower lanes allow us to maintain two lanes in each direction during peak travel times, but require extra attention from motorists when traveling through the project corridor.
Remember - the speed limit is 60 mph throughout the entire construction zone, and CDOT has funded increased enforcement.
Read below to learn about anticipated traffic impacts on the project. Check Cotrip.org for current travel times.
Remember: all construction schedules are weather-dependent and could change.
Traffic Shifts near Sky View Lane require ramp closure
Major progress has been made just north of the Sky View Lane/Tomah Road exit. Now, crews can shift traffic and begin work on another phase of the project.
Overnight on Tuesday, Nov. 19, southbound I-25 traffic will shift toward the median on newly constructed pavement. The following night, Wednesday, Nov. 20, crews will shift northbound I-25 traffic toward the median on newly constructed pavement. This shift must occur so crews can work on the outside shoulders.
To safely pave and re-stripe for the shift, the Sky View Lane on-ramp to northbound I-25 will be closed from 8 p.m. Wednesday to 5 a.m. Friday morning. Please use either of the frontage roads north to Plum Creek Parkway to access I-25.
Please pay extra attention to this change.
Ramp Closures near Larkspur for Spruce Mountain Road Bridge Demo
Crews will require a series of ramp closures next week to demolish the remaining Spruce Mountain Road bridge over northbound I-25 lanes.
The following ramp closures must occur to keep the traveling public and crews safe during this demolition:
- On Sunday, Nov. 17, crews must close the Upper Lake Gulch Road on-ramp to northbound I-25 from 8 p.m. to 5 a.m. Detour: Use the Upper Lake Gulch Road on-ramp to southbound I-25, exit at Greenland Road and head east to use the on-ramp to northbound I-25. (See map below).
- On Tuesday, Nov. 19 through Thursday, Nov. 21, crews must close the southbound I-25 off-ramp to Spruce Mountain Road from 8 p.m. to 5 a.m. Detour: Crews will temporarily open the southbound I-25 off-ramp to Upper Lake Gulch Road for access to Larkspur.
Closures
* Remember: planned lane closures can be affected by weather.
| Description | Time Frame | Work | Detour | |
|---|---|---|---|---|
|
Single lane closures northbound and southbound I-25 |
Sunday-Friday |
Cable rail, |
One lane open in each direction of I-25. |
|
|
Single lane closures along northbound and southbound I-25 on |
Sunday-Friday |
Barrier installation, traffic shifts, |
One lane open in each direction of I-25. |
|
|
Single lane closures along northbound and southbound I-25 between |
Sunday-Friday |
Pavement work, barrier placement, paving operations, pothole repair and traffic shifts |
One lane open in each direction of I-25. |
|
| Full closure of the Spruce Mountain Road on-ramp to northbound I-25 |
Ongoing for 9 months |
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. |
|
| Full closure of the southbound I-25 off-ramp to Upper Lake Gulch Road. |
Ongoing for 9 months |
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. |
|
|
Closure of the Upper Lake Gulch Road on-ramp to northbound I-25. |
Sunday |
Bridge work |
To access northbound I-25, motorists should use the Upper Lake Gulch Road on-ramp to southbound I-25, exit at Greenland Road and head east to access the northbound I-25 on-ramp. |
|
| Closure of the I-25 off-ramp to Spruce Mountain Road
|
Tuesday through Thursday |
Bridge work |
The off-ramp to Upper Lake Gulch ramp will be temporarily open so drivers will have access to Larkspur. |
|
| Closure of the Sky View Lane on-ramp to northbound I-25 |
Wednesday, Nov. 20 at 8 p.m. |
Pave and restripe for traffic shift |
Use either the East or West Frontage Roads north to Plum Creek Parkway to access I-25. |
|
|
Shoulder closures along northbound and southbound I-25 throughout the 18-mile project corridor. |
Monday-Friday |
Fiber optic cable work. |
One lane open in each direction of I-25. |
| 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) |
Daytime Hours |
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 Greenland Road access to I-25 |
Monday-Saturday |
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.
Contact Us
- 720-745-5434
- [email protected]
- Text I25GAP to 21000 for alerts.