09/04/2026
From Tuesday, Sept. 8 to Tuesday, Sept. 22, the southbound US 85 off-ramp to CO 52 will be closed nightly, Sunday through Thursday, from 10 p.m. to 6 a.m. Crews will repair the CO 52 bridge over the South Platte River immediately west of the interchange. Due to the narrow work zone and the equipment needed to perform the work, a full ramp safety closure is necessary.
The signed detour route will direct southbound US 85 traffic to continue south to CO 7 to bypass the closure.
Other overnight US 85 ramp closures will be needed for asphalt paving. More information will follow regarding the schedule and travel impacts.
Drivers should expect possible delays Sunday through Thursday nights from 7 p.m. to 6 a.m. on CO 52 from Colorado Boulevard to US 85. Paving operations require single-lane alternating traffic controlled by flaggers. Uniformed traffic control officers or flaggers may briefly stop traffic at driveways and side streets to allow construction equipment to pass.
Before paving, crews mill the roadway by removing the top few inches of pavement. Temporary pavement markings are installed after paving, with final lane striping completed later. Drivers should expect rough road conditions and uneven pavement in active work zones.
All construction activities are weather-dependent, and schedules are subject to change.
More info can be found at CDOT’s website: https://www.codot.gov/projects/co52weldresurfacing