News

C-470 Closed from Broadway to Lucent Boulevard Overnight Aug. 1 & 2 for Flooding Mitigation

July 31, 2018 -


DOUGLAS COUNTY—From 9 p.m. to 5:30 a.m. Aug. 1 and Aug. 2, travelers can expect full westbound closures of C-470 from Broadway to Lucent Boulevard as crews complete drainage work and install pipes to mitigate future flooding as part of the C-470 Express Lanes project.

For detour information, please see the map below.

North Detour:
Take the westbound Broadway off-ramp, turn right and continue to County Line Road. Turn left onto County Line Road, proceed to Lucent Boulevard and then turn left. Take Lucent Boulevard to the westbound C-470 on-ramp.

South Detour:
Take westbound Broadway off-ramp and turn left. Continue south on Broadway to Plaza Drive, and turn right. Take Plaza Drive to Lucent Boulevard, turn right and continue to westbound C-470 on-ramp.


  • Follow detour signs accordingly and go slow for the cone zone.
  • Construction is weather dependent and the schedule is subject to change.
  • For motorists on C-470, courtesy patrol is provided from 6 to 9 a.m. and from 3:30 to 6:30 p.m., Monday through Friday, to assist disabled vehicles at no cost to drivers.

More than 100,000 motorists currently use this segment of C-470 each day, with volumes projected to increase 40 percent by 2035. Construction is scheduled for completion in spring 2019.

Project Info

The $276 million C-470 Express Lanes project will increase mobility and user choice along 12.5 miles of the highway, between I-25 and Wadsworth Boulevard. On westbound C-470, crews will build two additional Express Lanes from I-25 to Colorado Boulevard, and one additional Express Lane from Colorado Boulevard to Wadsworth. On eastbound C-470, they will build one additional Express Lane between I-25 and Wadsworth Boulevard.

The project also includes full reconstruction of existing pavement, the addition of auxiliary lanes at selected locations, on- and off-ramp improvements, realignment of substandard curves, widening of existing bridges, replacing the bridges over the South Platte River, the installation of tolling equipment, and new C-470 trail underpasses at Colorado and Quebec.

When complete, motorists may use the Express Lanes on C-470 for a faster, more reliable commute in exchange for paying a toll, or drive the general-purpose lanes for free.

About Express Lanes

Express Lanes increase roadway capacity and help to manage congestion on the highways. The use of toll pricing during peak travel times provides an option for travelers, reduces delays, manages congestion and maintains reliable travel times.

HOV3/Express Lanes currently are open on I-25 from downtown Denver to 120th Avenue, on US 36 from Denver to Boulder and on the I-70 Mountain Express Lane. For more information, visit the Express Lanes website. To get an ExpressToll account and pass, visit expresstoll.com.

Colorado: The Official State Web Portal