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Beginning Sunday, March 22, at 8 p.m., US 6 will be closed between US 40 and SH 119 to accommodate planned work on the Peaks to Plains Trail project. The highway will reopen Saturday, March 28 at 5 p.m. This closure limits access to I-70 from Golden; access to Black Hawk and Central City from Golden will remain open.

As always, contact the Public Information Team at 303-569-9972 or [email protected] for more information. You can also check out the project blog at

About This Work
This six-day closure will allow crews to install an underpass for the Clear Creek County section of the trail just east of Tunnel 5. This will enable the trail to safely “cross” US 6 and follow the Creek and join up with the Jefferson County portion of the trail. The underpass is a critical connector for the new, 4-mile trail, and will be 8 feet wide, 10 feet tall and 126 feet long.

Crews will work in two, 12-hour shifts to complete the work on time. In order to complete this work, guardrail, asphalt and bridge slabs will be removed. Then, crews will dig into the ground and set a large, pre-constructed concrete culvert into place. Dirt and other excavated materials will then be “backfilled,” or replaced.

For Your Safety
The highway will be closed to traffic for the safety of the traveling public. Motorists are encouraged to plan alternate routes to I-70 from Golden in advance of travel. Once again, travel to Black Hawk and Central City will not be impacted.

This construction work will require crews to dig a hole in the ground that is deeper than the deep end of a swimming pool. Heavy equipment and machinery will be needed in order to complete the underpass. There will be no room to safely navigate the traveling public around the work, making it necessary to completely close the road.

All local emergency service providers have been notified of the closure, and signs will be posted to notify local motorists.

In case of inclement weather, backup dates for this work will be Sunday, March 29, at 8 p.m. through Saturday, April 4, at 5 p.m.

The images enclosed depict a map of the construction zone, and what the finished product will look like.


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