US 34 Now Open from Mile Points 72 to 74

What does this mean?

The nearly two-mile section of highway just west of Waltonia, closed from November 2017 to late March 2018, is again open for travel. This means permit holders who live in the Big Thompson Canyon now have more direct access to Estes Park without having to use County Road 43. US 34 will remain closed until late May to commuters living outside the canyon.

Is this section of US 34 open for unrestricted travel?

Because there is still ongoing work, canyon residents will still need to follow pilot cars during the permitted travel times of:

  • 6 to 8:30 a.m. daily;
  • 4 to 7 p.m. Monday through Thursday; and
  • 4 to 8 p.m. Friday through Sunday.

Additional travel times are available each day at 4:30 a.m., 10:30 a.m., 1 p.m., 10 p.m. and midnight by scheduling in advance through the project's Resident Scheduling Service (RSS). To schedule travel times, call 970-667-1005, or view the permits for residents section on our home page.

What work was done in this area?

This is an entirely new roadway. Deep below the pavement, CDOT added riprap (rock) to make the road more resilient and protect against future high water and potential flooding. Although it can only be seen in the photos shown here, the addition of a concrete grout that filled in the gaps between the rock creates a more solid foundation for the roadway thereby significantly reducing potential erosion from the river.

Though it might not be noticeable, work done in this area includes:

  • excavated 3,500 square yards of asphalt and hauled away 32,000 cubic yards of roadbase material;
  • installed 8,800 tons of rock material beneath the road surface;
  • put in 475 cubic yards of grout in between the rocks;
  • laid 675 tons of asphalt road base;
  • completed 500 feet of river restoration; and
  • crushed 15,000 cubic yards of subbase and topsoil.

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