US 6 Bridges Design Build Project

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

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Construction Update

Upcoming Activities:

In August, the US 6 Project team will start its final push to finishing the project this fall by completing several activities. Much of this work is taking place on the east end of the project corridor between Federal Boulevard and the I-25 interchange and requires various short-term closures and detours.

In recent weeks, crews shifted the eastbound US 6 lanes at the off-ramp to I-25 to open up more room in the US 6/I-25 interchange to complete the final ramp tie-in and moved Federal on-ramp traffic to eastbound US 6 onto the permanent braided ramp bridge to provide more room alongside the eastbound lanes of US 6 to continue building the collector-distributor lanes.

Ongoing and upcoming construction activities include:

  • The week of August 10
    • Crews started daytime milling and paving work in the median of I-25 near the US 6 bridge to finalize the grade of the highway lanes through this section. When this work progresses into the northbound lanes of I-25, the milling and paving operations will be done at night and will require various single and double lane closures.
  • Friday, Aug. 14 – Monday, Aug. 17
    • Crews will shift southbound Federal traffic into its final alignment and do additional paving work on the north and south sides of the bridge as well as signal work at the 5thAvenue intersection and slope paving work along the westbound US 6 off-ramp to Federal. To complete this work, the following traffic impacts will be in place from 10 p.m. Friday until 5 a.m. Monday:
      • Southbound Federal Boulevard will be completely closed at 8th Avenue
      • Northbound Federal Boulevard will be reduced to one lane of travel
      • Both US 6 off-ramps to Federal Boulevard will be closed

All businesses along Federal will remain accessible while this work is done and a flagger will be positioned at 8th Avenue to assist southbound Federal drivers who want to access the businesses that are between 8th and 7th avenues.

While both off-ramps from US 6 to Federal are closed, drivers will be directed to exit at Sheridan Boulevard and go south on Sheridan to Alameda and east on Alameda to Federal.

Southbound Federal drivers will directed west on 8th Avenue to Knox Court, south on Knox to 1st Avenue and east on 1st Avenue back to Federal.

  • Friday, Aug. 21 – Monday, Aug. 24
    • The US 6 flyover ramp bridges to I-25 will be closed so crews can replace the neoprene strips (glands) in each of the bridge expansion joints that help protect the bridge deck from intruding water and debris. This work will require closing both the eastbound US 6 flyover ramp to northbound I-25 and the westbound US 6 flyover to southbound I-25.
  • Friday, Aug. 28 – Monday, Aug. 31
    • If crews are unable to finish the gland replacement work scheduled for the previous weekend, additional closures of either/both of the US 6 to I-25 flyover bridges could be necessary this weekend as well.

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:

  • The southbound I-25 off-ramp to eastbound US 6 is closed and will reopen in summer 2015.
  • The Lowell on-ramp to eastbound US 6 will remain closed until Summer 2015.
  • 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 Osage Street on-ramp to westbound US 6 is closed while crews continue reconstruction of the US 6 bridges over I-25 and the BNSF railroad tracks. To detour around this closure, motorists should take Osage Street to 3rd Avenue, 3rd Avenue to Santa Fe Drive, Santa Fe Drive to 8th Avenue, 8th Avenue to Kalamath Street, and Kalamath Street south to access westbound 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.

Explore Commuting Options

If you find it too stressful to drive through the US 6 corridor while it is under construction, you might want to explore alternative modes of transportation. This could include using the Regional Transportation District’s West Rail Line or bus services. Click here for information on RTD’s light rail service. For information on bus fares and schedules, click here.

Exploring carpool or vanpool services is another option you might want to pursue. Click here to access an online trip planner where you can input your starting location and destination address into a database to see if there are existing carpool or vanpool services in your area.

If biking or walking are more your speed for short trips, click here for tips on getting to your destination by foot or bicycle.

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