US 287 and US 40 Passing Lanes

Project Facts

  • Cost: $9.4 Million
  • Contractor:  Castle Rock Construction
  • Timeline: March 2021 - December 2021
  • Location:  US 287 between Limon and just south of Kit Carson, Lincoln and Cheyenne Counties

US 287/US 40 Passing Lanes project map

Project Location Map

About the Project:

US 287 is a critical connection for moving freight across the country. Slow moving freight traffic along this two-lane rural highway causes long traffic backups, travel delays for motorists and significant safety concerns for the traveling public.

The project will improve safety and mobility by providing space and opportunities for vehicles to safely pass slower-moving traffic.

CDOT Region 4 was awarded a National Highway Freight Program Grant to construct passing lanes on this segment of highway.


Project Schedule

Construction scheduled to start in mid-March​

Phase 1 includes passing lane sites 1, 5 and 6:​

  • Site 1: MP 407.28 – 408.43​
  • Site 5: MP 435.80 – 437.40​
  • Site 6: US 40 MP 123.25 – 124.50​

Phase 2 includes passing lane sites 2, 3 and 4

  • Site 2: MP 409.95 – 411.39​
  • Site 3: MP 414.00 – 414.90​
  • Site 4: MP 417.90 – 418.3

Traffic Impacts

Anyone traveling this corridor can expect throughout the project:​

  • Single-lane, alternating travel through the work zone. ​
  • Flaggers will direct single-lane, alternating traffic. ​
  • Width restrictions of 12 feet will be in place 24 hours a day.​
  • Speed reductions will be in place of 50 mph during working hours.