The Colorado Department of Transportation began a project on Colorado Highway 133 on the south side of McClure Pass on Monday, May 20, with anticipated completion in mid-October, weather permitting. The work, contracted to Anderson Drilling for $1.3 million, will reinforce a rock slip (fault) area between mile points (MP) 40.54 and 40.61, about five miles south of the Marble turnoff.
Specifically, the project will stabilize and reinforce a landslide below the roadway alignment to reduce the risk of further slipping or future rockslide events. Work items will involve:
• Excavation of approximately 3,750 tons (or 3,000 cubic yards) of rock material;
• Drilling approximately 18 caissons, 60 feet deep, into which vertical and horizontal reinforcing supports (or rebar cages) will be positioned;
• Installing 24-inch diameter rebar cages, which are circular sets of 18 60-foot-long sections of rebar;
• Constructing a tieback system, which incorporates high-strength steel strand anchors, that are grouted in-place to anchor the vertical caissons;
• Repairing and reconstructing the damaged roadway;
• Conducting earthwork and erosion control;
• Final striping and signing.
Through mid-October 2018, motorists can anticipate single-lane, alternating travel through the work zone. There will also be periodic full traffic holds of up to 15 minutes (please note, delays will exceed 15 minutes, as traffic queues must be cleared in each direction). Work hours are Monday through Friday, from 7 a.m. to 7 p.m.
There will be a 10-foot width restriction in place during work hours. Motorists are urged to avoid distractions when driving through the work zone and to go Slow for the Cone Zone!
This summer/fall, there will be three projects underway on Highway 133.
The Bowie resurfacing and bridge repair project is taking place between MP 11.43 and 23.8. This project is expected to be completed by late September. For more information, visit www.codot.gov/projects/co-133-resurfacing-in-delta-and-gunnison-counties. The project information line is 970-433-1853, and the project email is firstname.lastname@example.org.
A resurfacing project is scheduled between MP 43 and 50, north of the slip project. Details of the McClure Pass to Redstone resurfacing project will be announced when work begins.