I-70 Floyd Hill bridge work ramps up with two overnight westbound I-70 closures next week

I-70 Floyd Hill bridge work ramps up with two overnight westbound I-70 closures next week Dec. 9, 2025 - Denver Metro/Central Colorado - Motorists can detour using US 6 (Exit 244) off- and on-ramps https://www.codot.gov/news/2025/december/overnight-i70-floyd-hill-closures https://www.codot.gov/@@site-logo/siteLogo.png

Travel Advisory

Dec. 9, 2025 - Denver Metro/Central Colorado - Motorists can detour using US 6 (Exit 244) off- and on-ramps

Clear Creek County - Major bridge construction advances on the Colorado Department of Transportation's I-70 Floyd Hill Project in mid-December, requiring two overnight closures of westbound Interstate 70 between the US 6 (Exit 244) off- and on-ramps near Idaho Springs. Crews will build a temporary framework to support the upcoming construction of a concrete cast-in-place segmental bridge over live traffic on I-70. Once complete, the segmental bridge will carry westbound I-70 in a new alignment that will improve both safety and operations on this vital stretch of highway.

Rendering of the completed I-70 Floyd Hill Project alignment looking southwest, with westbound I-70 braiding over eastbound I-70 at the bottom of Floyd Hill and the new US 6 frontage road that connects to Hidden Valley/Central City Parkway (Exit 243) interchange. The new westbound I-70 viaduct will be a concrete cast-in-place segmental bridge.

Traffic Impacts:

Westbound I-70 closure details

Crews will require two overnight full closures of westbound I-70 between the US 6 (Exit 244) off- and on-ramps.

• 9 p.m., Monday, Dec. 15, to 5 a.m., Tuesday, Dec. 16
• 9 p.m., Tuesday, Dec. 16, to 5 a.m., Wednesday, Dec. 17

Detour: Westbound I-70 traffic will merge into one lane and exit at the US 6 (Exit 244) off-ramp, and then turn left to access the US 6 (Exit 244) on-ramp to return to westbound I-70. Flaggers and uniformed traffic control will be at the interchange to direct traffic.

Westbound I-70 traffic will merge into one lane and exit at the US 6 (Exit 244) off-ramp, and then turn left to access the US 6 (Exit 244) on-ramp to return to westbound I-70.

All work is weather-dependent and subject to change. If weather impacts this work, crews will shift the construction schedule and closures could occur on Wednesday, Dec. 17, and Thursday, Dec. 18, from 9 p.m. to 5 a.m. Stay informed by signing up for text alerts by texting floydhill (one word) to 21000.

Upcoming holiday travel hours

As holiday travel increases, the I-70 Floyd Hill Project is committed to keeping I-70 moving. There will be no planned traffic impacts related to the I-70 Floyd Hill Project on eastbound and westbound I-70 the following dates:

• 6 a.m., Saturday, Dec. 20, through 6 a.m., Monday, Jan. 5, 2026

Project Information

The I-70 Floyd Hill Project will improve eight miles of the I-70 mountain corridor, from west of Evergreen to eastern Idaho Springs. The project will deliver a third westbound I-70 travel lane, which will function as an Express Lane, to improve the current two-lane bottleneck. Other major elements include constructing a missing two-mile section of the frontage road between Evergreen and Idaho Springs, building an eastbound I-70 extended on-ramp for slow-moving vehicles, improving traffic flow and access at interchanges and intersections within the project limits, improving sight distance on roadway curves, improving the Clear Creek Greenway trail and creating safer wildlife movements.

Construction began in July 2023. I-70 will be in its new alignment in 2028, with the entire project expected to conclude in 2029.

For additional information about this project:

• Call the project information line at 720-994-2368 (CDOT)
• Text floydhill to 21000 to sign up for text alerts
• Email the project team at: [email protected]
• Visit the project website at: codot.gov/projects/i70floydhill

Know Before You Go

Travelers are urged to "know before you go." Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

• Road conditions and travel information: COtrip.org
• Download the COtrip Planner app: bit.ly/COtripapp
• Sign up for project or travel alerts: bit.ly/COnewsalerts
• Check scheduled construction lane closures: bit.ly/laneclosures
• Connect with @ColoradoDOT on social media: X, Facebook, Instagram and YouTube

Remember: Slow For The Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

• Do not speed in work zones. Obey the posted speed limits.
• Stay Alert! Expect the unexpected.
• Watch for workers. Drive with caution.
• Don't change lanes unnecessarily.
• Avoid using mobile devices such as phones while driving in work zones.
• Turn on headlights so that workers and other drivers can see you.
• Be especially alert at night while driving in work zones.
• Expect delays, especially during peak travel times.
• Allow ample space between you and the car in front of you.
• Anticipate lane shifts and merge when directed to do so.
• Be patient!

Download the COtrip App!

The new free COtrip Planner mobile app was designed to meet the growing trend of information on mobile and tablet devices for the traveling public. The COtrip Planner app provides statewide, real-time traffic information, and works on mobile devices that operate on the iOS and Android platforms. Visit the Google Play Store (Android devices) or the Apple Store (iOS devices) to download!