Santa Fe to Eastbound C-470 Flyover Bridge Repairs

About the Project

CDOT is completing interim repairs on the southbound Santa Fe Drive (US 85) bridge to the eastbound C-470 flyover near Pier 7 in Douglas County. During a recent inspection, the team identified structural deterioration at the pier location. Crews will repair a pier cap and column at Pier 7 to help ensure the continued safety of the traveling public. Monitoring equipment has been installed and traffic control remains in place while repairs are completed.

Project Facts

  • Construction Cost: $2.5 million
  • Contractor: Ames Construction, Inc.
  • Timeline: February 2026 to fall 2026
  • Location: Southbound Santa Fe Drive (US 85) to EB C-470 flyover bridge, Pier 7
    • Nearest Town/City: LIttleton/Highlands Ranch
    • Mile Point(s): MP 200 to MP 201
    • County: Douglas
Santa Fe Bridge Repair Location Map
Aerial map showing the US 85 (Santa Fe Drive) bridge repair area between MP 200 and MP 201 near the C-470 interchange in Douglas County.

Project Benefits

  • Improve safety for motorists by addressing structural deterioration at Pier 7
  • Restore the bridge’s structural integrity
  • Continued reliability on this connection between Santa Fe Drive (US 85) and eastbound C-470

Work Schedule

  • Beginning Feb. 2, 2026, crews will work Monday through Friday during daylight hours
  • Additional overnight work may be required for specific closures or operational needs
  • Work and impacts are weather-dependent and subject to change.

Traffic Impacts

Motorists can expect the following impacts during the period of construction:

  • A single lane closure on C-470 westbound off-ramp to northbound Santa Fe will remain in place through the duration of the project
  • A two-week period of 24/7 work and lane closures are also anticipated later in the project
    • Dates will be shared as they are finalized
  • Motorists are urged to slow down and drive with caution through the work zone
  • Later this month, expect two consecutive nights of full closures on the westbound C-470 off-ramp and the eastbound C-470 flyover ramp.
    • A signed detour will be in place
  • Overweight load restrictions are in place for commercial motor vehicles on the bridge. Truck drivers should follow all posted weight-limit signage
  • Additional short-term lane and ramp closures, including single-night closures, may occur as construction progresses
  • Refer to COtrip.org for real-time travel conditions and road closures