Projects

Traffic Impacts

All work is weather dependent and will be rescheduled if operations cannot be completed.

View the Changes to Local Frontage Roads Factsheet

Construction Activities & Impacts

CO 56 CLOSED OVER I-25

The temporary closure continues on the Weld County Road 44/CO 56 bridge over I-25. With 47 days of work down, this closure will be in place for a maximum of 93 more days. The northbound on- and off-ramps at CO 56 will remain closed for a period not to exceed 31 days, and the southbound on- and off-ramps will remain open with only minor intermittent night and/or weekend closures. This closure is necessary to facilitate construction that improves the safety and traffic flow issues that exist currently. The 140-day CO 56 closure allows crews to make these safety improvements as quickly and safely as possible without closing I-25.
 
This will allow an extensive list of construction activities to be performed. A variety of detours will be in place.

Berthoud to Johnstown

Sunday and Monday, from 9 p.m. to 5 a.m., the southbound I-25 temporary off-ramp at Colorado Highway 56 will be closed to relocate concrete barriers.

Starting Saturday, Sept. 18 at 9 p.m. to Sunday, Sept. 19, at 9 p.m., CDOT will close the following roadways to divert traffic onto the newly built Colorado Highway 60 bridge:

  • The northbound I-25 on-ramp from CO 60
  • The southbound I-25 off-ramp to CO 60
  • The CO 60 bridge over I-25

The southbound I-25 on-ramp from CO 60 and the northbound I-25 off-ramp to CO 60 will remain open as part of the Colorado Highway 56 detour.

There will be several overnight closures of I-25 at CO 60 throughout the week of Sept. 19 in order to demolish the aging concrete bridge. Traffic will be diverted up and over the I-25 ramps at CO 60 and the CO 60 bridge over I-25 will also be closed during these times. See below for detours

  • Westbound CO 60 traffic will take the I-25 on-ramp at CO 60 and go north to East County Road 18. Traffic can turn around at E. CR 18 and take I-25 south to the CO 60 off-ramp where they will be able to make a right turn and continue westbound on CO 60.
  • Eastbound CO 60 traffic will take the southbound I-25 on-ramp from CO 60, then travel south to County Road 34 to turn around and go north to CO 60.
  • CO 56 eastbound – will follow the detour route above and travel eastbound on CO 60 then south on Colorado Boulevard.

Johnstown to Fort Collins

To construct new roadway along the I-25 median, single lane closures will take place on I-25 from Kechter Road to north of Prospect Road from 9 p.m. until 5 a.m., Sunday through Thursday.

To shift traffic into a new alignment, a full closure of the northbound I-25 off-ramp to Harmony Road will take place from 9 p.m., Monday, until 5 a.m., Tuesday. Northbound Harmony Road off-ramp traffic will continue north on I-25 to Exit 259/Prospect Road and turn left. Continue back onto southbound I-25 to Exit 265/Harmony Road.

Single lane closures on US Highway 34 at the Park-n-Ride parking lot entrance will take place from 9 p.m., Tuesday, until 5 a.m., Wednesday to realign traffic.

To tie in the new US 34 bridge to the southbound I-25 off-ramp, a full closure of the southbound I-25 off-ramp to US 34 will take place from 9 p.m., Friday, Sept. 17, until 5 a.m., Monday, Sept. 20. Southbound I-25 traffic will continue south on I-25 to Exit 255/ Colorado Highway 402 and turn left. Continue east to the northbound I-25 on-ramp to Exit 257/US 34.

To realign the US 34 ramps, a full closure of the southbound I-25 on-ramp from westbound US 34 is required from 9 p.m., Friday, Sept. 17 until 5 a.m., Saturday, Sept. 18, and again from 9 p.m., Saturday, Sept. 18 until 5 a.m., Sunday, Sept. 19. Single lane closures on US 34 will also take place nightly from 9 p.m. until 5 a.m., Friday, Sept. 17 through Sunday, Sept. 19. Southbound I-25 traffic from US 34 will go north on I-25 to Exit 259/ Crossroads Boulevard and turn left. Continue to the southbound I-25 on-ramp.

PERMANENTLY CLOSED
I-25 Frontage Road, south of CO 60

On Thursday, April 1, the Frontage Road, south of CO 60 closed permanently to install the new I-25 Express Lanes.

Frontage Rd Closure Map_SH 60_V2_Closeup.jpg


Work this Week

Sept. 19 - 25

Lane closures for the week of Sept. 19:

  • Sunday – Thursday: Nighttime single lane closure on I-25 between Kechter Road and Prospect Road.
  • Tuesday: Nighttime single lane closure on US 34 at the Park-n-Ride parking lot entrance.
  • Sunday – Monday: Overnight southbound I-25 temporary off-ramp at CO 56 will be closed to allow for the relocation of concrete barriers.
  • Tuesday - Friday: Daytime flagging operations on southbound I-25 at LCR 14.
  • Friday – Sunday (Sept. 17 -19): Nighttime single lane closures on US 34 over I-25.
  • Friday – Saturday (Sept. 17 – 18): Nighttime full closures of the southbound I-25 on-ramp from westbound US 34.
  • Friday – Monday (Sept. 17 – 20): 24/7 full closure of the southbound I-25 off-ramp to US 34.
  • Saturday - Sunday (Sept. 18 - 19): Overnight and daytime westbound traffic shift to new CO 60 bridge with southbound I-25 off- and on-ramp closures.
  • Sunday - Thursday (Sept. 19 - 23): Overnight nightly temporary closure of CO 60 over I-25.