I-70 Floyd Hill Project Update
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Heads Up! Construction in the West Section of the Project, between Idaho Springs (Exit 241) and the Hidden Valley/Central City Parkway Interchange (Exit 243), is expected to begin on Wednesday, March 20, weather depending. Motorists will see overnight lane closures to set up the work zone, repair pavement and prepare for a traffic shift.
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I-70 Lane and Shoulder Closures
- Expect overnight, mobile single-lane closures on eastbound and westbound I-70 between Idaho Springs/Stanley Road (Exit 239) and Hidden Valley (Exit 243) to install construction signage in the West Section of the Project.
- Westbound I-70:
- 7 p.m. to 6 a.m., Wednesday, March 20
- 8 p.m. to 5 a.m., Thursday, March 21
- 9 p.m. to 5 a.m., Friday, March 22
- Eastbound I-70:
- 7 p.m. to 6 a.m., Wednesday, March 20, and Thursday, March 21
- 7 p.m. to 9 a.m., Friday, March 22
- 8 p.m. to 6 a.m., Tuesday, March 19, through Thursday, March 21 - Expect overnight, double right lane closures on eastbound I-70 between US 6 (Exit 244) and mile point 246 for temporary barrier maintenance.
- 7 a.m. to 5 p.m., Thursday, March 21 - Expect a daytime right shoulder closure on eastbound I-70 between Homestead Road (Exit 247) and the US 6 (Exit 244) interchanges for utility work.
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US 40 Traffic Impacts
- 7 a.m. to 5 p.m., Monday, March 18, through Wednesday, March 20 - Expect alternating, single-lane traffic on US 40 between CR 65 and Homestead Road for utility work.
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Upcoming Traffic Impacts
In late March, crews will shift westbound I-70 traffic to the south toward the median in the East Section of the Project between County Road 65/Beaver Brook (Exit 248) and east of the US 6 interchange (Exit 244), resulting in narrower lanes and shoulders. Eastbound I-70 will remain in its current alignment.
Motorists will see increased work through the corridor as construction in the West Section begins. In the West Section, traffic on eastbound and westbound I-70 will be shifted toward the outside shoulders by early April so crews can work in the median. In addition to overnight lane closures, motorists can expect narrower lanes and shoulders and reduced speed limits through the work zone.
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Caption: In the West Section of the Project, the phase 1 traffic shift will push westbound I-70 traffic to the north and eastbound I-70 traffic to the south toward the outside shoulders. The work zone will be in the median, separating westbound and eastbound I-70 traffic.
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Genesee Wildlife Crossing
Eastbound and westbound I-70 between Genesee (Exit 254) and Mile Point 255 - Expect daytime, single left-lane closures on westbound I-70, 10 a.m. to 3 p.m., Monday, March 18, through Thursday, March 21, and on eastbound I-70, 10 a.m. to 3 p.m., Tuesday, March 19, and Wednesday, March 20. To learn more about the Genesee Wildlife Crossing project, visit the project website here.
US 40 & Floyd Hill Roundabouts
US 40 east of County Road 65 - The full closure of US 40 east of County Road 65 has been extended until 5 p.m., Friday, March 22, due to weather. The closure will not impact the I-70 and CR 65 (Exit 248) interchange. This closure is necessary for crews to install curb, gutter and guardrail, remove asphalt, and pave the detour and roadway for the roundabout at US 40 and CR 65. Motorists should detour using I-70. To learn more about the US 40 & Floyd Hill Roundabouts project, visit the project website here.
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Clear Creek Greenway Trail Closure
The Clear Creek Greenway trail remains closed between the US 6 (Exit 244) and Hidden Valley (Exit 243) interchanges for construction and utility work in this area. This work is scheduled to last until spring 2024, but trail users can expect ongoing trail impacts and closures through the end of 2027. This one-mile portion of the trail will be an active construction zone and will be unsafe for multi-use travel. Other segments of the trail will remain open.
There is currently no alternative route for this trail closure. The Project is actively working on solutions for alternative trail access through 2026. Please plan ahead and continue to check this webpage prior to Clear Creek Greenway Trail use. For up-to-date information, visit bit.ly/ccgreenway.
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Caption: The Clear Creek Greenway Trail is closed from US 6 (Exit 244) to Hidden Valley/Central City (Exit 243). There is an alternate parking location and access to open trail at Game Check Station Trailhead and Park.
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I-70 Floyd Hill Deconstructed Video Series
The I-70 Floyd Hill Project recently launched a new video series called “I-70 Floyd Hill Deconstructed.” This video series provides an inside look at the various construction activities required to build a project of this magnitude and meet the people who make it possible.
Click on the links below to watch videos from the I-70 Floyd Hill Deconstructed series.
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I-70 Mountain Corridor-Wide Traffic Impacts
- Reduced speed limits as low as 45 MPH, narrower lanes and shoulders, and increased truck traffic entering and exiting the work zones. Heed the speed limit, do not follow trucks into the work zone, go slow for the cone zone and do not drive distracted.
- All construction activities are weather-dependent and subject to change. For real-time travel information, visit COTrip.org.
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About the Project
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 implementing environmental mitigation to create safer wildlife movements and improve air and water quality, stream conditions and recreation.
Construction began in July 2023 and is expected to conclude in late 2028.
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