New Striping on I-70 Mountain Express Lane to Help to Improve Operations and Safety

September 30, 2016 - Denver Metro Colorado/CDOT Region 1 - Yellow Striping Will Help to Improve Driver Awareness of Express Lane


CLEAR CREEK COUNTY — Drivers on the I-70 mountain corridor will notice a new solid yellow stripe and signage to denote the boundary of the I-70 Mountain Express Lane. This operational improvement comes on the tail of a successful first summer season where all lanes of traffic benefitted from more consistent, faster speeds and reduced travel time.

The solid yellow line, replacing a solid white line, will help to increase safety and overall driver awareness of where to enter and exit when the lane is operation. The new striping will also help to increase safety during non-operational days to delineate when the Express Lane is not in use and the shoulder can be used for by emergency service vehicles and disabled vehicles.

The Colorado Department of Transportation continues to look for opportunities to increase operations on this corridor. For example, in spring 2017, dynamic signing will be installed to provide even better information to drivers as they travel through the area.

CDOT reminds drivers that the I-70 Mountain Express Lane is only open weekends and holidays. When the Express Lane is not open, roadway signage indicates it is closed and is used as a shoulder for emergency purposes.

Learn more about Express Lanes at and more on the High Performance Transportation Enterprise (HPTE) at