US 550 Retaining Wall & Tunnel Repairs
About the Project
This Project will take place just south of Ouray in Ouray County on US Highway 550.
The work includes:
- Drilling stabilization anchors
- Upgrading the face of the retaining wall (Mile Point 88.6)
- Cleaning drainages
- Repairing cracks
- Repairing the tunnel liner in the Bear Creek Tunnel (MP 90.84)
The project will begin the week of July 20, 2026, and work is expected to be completed by late September.
Work this Week & Lane Closures for US 550 Retaining Wall & Tunnel Repairs
Project Facts
- Construction Cost: $1.9 million
- Contractor: Rock & Co
- Timeline: July 2026 to October 2026
- Location: US 550
- Nearest Town/City: Ouray
- Mile Point(s): MP 88.6
- County: Ouray
Project Benefits
Repair and maintenance of this retaining wall and tunnel will provide the following benefits:
- Protect this busy travel corridor
- Prolong the life and integrity of the existing structures
- Prevent dangerous driving conditions
- Reduce highway maintenance costs
Work Schedule
Normal working hours will be Monday through Friday from 7 a.m. to 7 p.m., and weekend work is possible.
Traffic, Trail & Backcountry Impacts
With heightened fire activity occurring in the area, the project team is well prepared to adjust road construction to accommodate emergency traffic and evacuation routes. Other impacts include:
- Motorists will encounter 24/7, single-lane, alternating traffic guided by temporary traffic signals at the retaining wall
- Motorists should plan for 15 to 20 minute delays
- Full nighttime closures may occur intermittently during the week from 9 p.m. to 5 a.m.
- An 11-foot width restriction will be in place (tunnel clearance is 13 ft. 9 in.)
- Access to trailheads and scenic overlooks will remain open
- Backcountry 4x4 travelers driving on the Alpine Loop from Lake City to Ouray should be aware of the US 550 traffic impacts and delays
- Refer to COtrip.org for real-time travel conditions and road closures
