I-70 Floyd Hill Project Update
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The Colorado Department of Transportation’s I-70 Floyd Hill Project began construction on the first section of the project on Thursday, July 6. While construction starts on the East Section of the project, which spans I-70 from County Road 65 to the bottom of Floyd Hill (approximately exits 248 to 244), motorists can expect corridor-wide impacts for crews to mobilize in the area, establish a safe work zone and install traffic control signage. This will require minor lane restriping, shoulder closures and installation of temporary barriers to separate the work area from I-70 travel lanes.
Motorists should expect narrower lanes and shoulders, reduced speed limits as low as 45 MPH and increased truck traffic entering and exiting the work zones. All construction activities are weather dependent and subject to change.
During construction, the existing I-70 travel lanes will remain open in each direction during peak daytime travel hours. Lane closure hours for the duration of construction will vary based on the season, day of week, number of lanes being closed and travel direction.
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Map of the I-70 Floyd Hill Project Work Zone
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Eastbound I-70 Traffic Impacts
- 10 p.m. to 6 a.m., Sunday, July 9 - Double left lane closures on eastbound I-70 from the Hidden Valley interchange (Exit 243) to the El Rancho interchange (Exit 251) for roadway repairs.
- 8 p.m. to 6 a.m., Monday, July 10 through Thursday, July 13 - Double lane closures on eastbound I-70 from the Hidden Valley interchange (Exit 243) to the El Rancho interchange (Exit 251) for roadway repairs and a traffic shift. One lane of traffic will remain open.
- 8 p.m. to 8 a.m., Friday, July 14 - Left lane closure on eastbound I-70 from the Hidden Valley interchange to the El Rancho interchange (Exit 251) for a traffic shift.
- 6 p.m. to 6 a.m., Tuesday, July 11, Thursday, July 13, and Friday, July 14 - The eastbound I-70 off-ramp to Homestead Road (Exit 247) will be closed for roadway repairs and a traffic shift. Detour: Continue on eastbound I-70 and turn around using the El Rancho interchange (Exit 251).
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Detour map for the eastbound I-70 off-ramp closure to Homestead Road
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Westbound I-70 Traffic Impacts
- 7 p.m. to 7 a.m., Sunday, July 9 through Tuesday, July 11 - Left lane closure on westbound I-70 from the El Rancho interchange (Exit 251) to the Hidden Valley interchange (Exit 243) to install traffic control signage and set up the work zone.
- 7 p.m. to 6 a.m., Wednesday, July 12 and Thursday, July 13 - Left lane closure on westbound I-70 from the El Rancho interchange (Exit 251) to the Hidden Valley interchange (Exit 243) to install traffic control signage and set up the work zone.
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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