I-70 Exit 203 Interchange in Frisco | Construction Phase

About the Project

The project entails safety, mobility and operational improvements on I-70 at the Colorado State Highway 9 (CO 9) Frisco interchange (Exit 203) and the adjacent intersection on Lusher Court/Dillon Dam Road (DDR). The Interchange experiences congestion during peak travel times. 

This project will improve the capacity of the interchange by improving the westbound ramp and I-70 bridge. It also improves the eastbound ramps and adjacent intersection that affect the operation of this interchange.

Project Benefits

The project will improve:

• Mobility: Interchange improvements enhance economic vitality and mobility by reducing travel delays caused by crashes and congestion for all users, including the freight industry and tourists. Mobility improvements help regional transit such as Bustang and Summit Stage, the local transit agency that uses I-70.
• Safety: The interchange improvements will increase traveler safety for all users, including new bicycle and pedestrian connections across CO 9 and I-70.

Work Schedule

• Daytime work: Work will occur Monday through Saturday from 7 a.m. to 7 p.m. with occasional Sundays as needed
• Night work: Night traffic shifts are planned from 7 p.m. to 7 a.m. for barrier placement, striping operations and sanitary sewer installations

We encourage motorists, cyclists and pedestrians to plan for potential construction-related delays in the area and to follow all posted traffic switches and safety signage.

Traffic Impacts

Construction will occur in six phases:

• Phase I traffic switch: A temporary traffic switch will occur during nighttime hours for the I-70 ramps and CO 9
• Nighttime lane closures: CO 9 and I-70 closures will be limited to nighttime hours to lessen traffic impacts to the traveling public
• No full closures are expected during the first season of construction
• During the day, two lanes of travel will continue to flow
• Refer to COtrip.org for real-time travel conditions and road closures