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US 6 Bridges Design Build Project

U.S. 6 over I-25 was originally constructed in 1958.

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Hotline: 720-881-5540
Email: US6BridgesInfo@cig-pr.com
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The I-25 Gap Lane Project

Click here to learn more about CDOT's I-25 Gap Lane Project.

Construction Update

Upcoming Activities:

Overnight closure of southbound I-25: On Sunday night, July 27, crews will remove various sign bridge structures on I-25 between US 6 and Alameda Avenue in preparation for the I-25 Gap Lane Project. This work requires an overnight closure of southbound I-25 between US 6 and Alameda Avenue between the hours of 10 p.m. and 5 a.m. From 10 p.m. to midnight, southbound I-25 traffic will divert west on US 6 to Federal Boulevard, then south on Federal to 5th Avenue to enter eastbound US 6 and reconnect with southbound I-25. At midnight the eastbound 5th Avenue on-ramp to eastbound US 6 will need to close, so at that time southbound Federal drivers will continue to Alameda, then go east on Alameda to reconnect with southbound I-25. Northbound Federal Boulevard drivers will continue to Colfax Avenue to access I-25. Also at midnight, crews will close the eastbound and westbound US 6 on-ramps to southbound I-25. The left two lanes on northbound I-25 will also be closed between Alameda Avenue and US 6 beginning at, 9 p.m. All lanes will reopen by 5:30 a.m. Monday.

Initial I-25 Gap Lane Project work: There will be work each night, Monday through Thursday, on I-25 between Alameda Avenue and the US 6 interchange to prepare the roadway for the upcoming I-25 Gap Lane Project. Nightly work will continue for approximately the next month in preparation of a full weekend closure of I-25 in early August. This work will require nightly lane closures as needed on I-25 between the hours of 8 p.m. and 5 a.m.

US 6 roadway re-striping: Each night, watch for various lane closures as needed on eastbound US 6 near Federal Boulevard while crews re-stripe the roadway in preparation for an upcoming traffic shift. Work will occur at night between the hours of 7 p.m. and 5:30 a.m.

The traffic shift will occur later in the summer and will include moving all six lanes of US 6 traffic to the eastbound (south) side of the highway. This will result in temporary closures of the westbound US 6 off-ramp to Lowell/Perry as needed, scheduled to last through fall 2014.

US 6 over South Platte River: Crews will pour the new bridge deck on the US 6 bridge over the South Platte River over the nightTuesday, July 29, from 7 p.m. to 5:30 a.m. This will require a overnight full closure of the South Platte River Trail. The on-street detour route for cyclists riding south will be to use 7th Avenue, Bryant Street, 2nd Avenue, Tejon Street and Bayaud Avenue to reconnect with the trail. Cyclists going northbound will follow the same detour in reverse.

This work will also require various lane closures in both directions on US 6 as needed.

Ongoing Impacts:

Commuters are advised to use caution and drive carefully through the new traffic alignment on US 6. Lanes have been narrowed slightly and the posted speed limit reduced to 45 mph.

Ongoing traffic impacts currently in place:

  • 5th and Decatur drainage line installation: Daily, during the hours of 7 a.m. to 5 p.m., commuters should be on the lookout for various lane closures in either direction on 5th Avenue for continued drainage line installation.
  • The Lowell on-ramp to eastbound US 6 is closed for approximately six months and there will be a temporary, six month closure of the westbound US 6 off-ramp to Lowell/Perry coming up in mid-June. More information to follow.
  • The Bryant Street on and off-ramps are also closed for about one year for construction of the collector-distributor roads on both sides of US 6.
  • The northbound I-25 off-ramp to eastbound US 6 is closed for approximately six months while crews reconstruct the ramp and bridge over the BNSF railroad tracks. To detour around this closure, northbound I-25 motorists should exit at 8th Avenue and go east to Kalamath, then go south on Kalamath to US 6.
  • All lanes on Federal Boulevard have been narrowed and southbound Federal is reduced to two lanes as efforts are under way to rebuild this bridge over US 6.

Project Links:

Project Contacts

Project Hotline:
720-881-5540

E-mail address:
us6bridgesinfo@cig-pr.com