OR 58: Salt Creek Tunnel and Half Viaducts
Important New Information
This project will not be completed in 2013, as planned. The construction schedule will be extended to the 2014 construction season. To learn more, click here.
|Construction and Closure Schedule|
The Monday through Thursday nighttime complete closures have ended for the 2013/2014 winter. The tunnel will remain open to all lanes of travel, 24-hours per day, 7-days per week from now until next spring.
During construction in 2014, there will be single lane restrictions with pilot cars and flaggers controlling traffic. There may be a few nighttime complete closures but ODOT is working closely with the contractor to keep the number to a minimum.
The project is located at the Salt Creek Falls Tunnel, east of Oakridge on OR 58 (Willamette Highway) at milepost 56.
Built in 1939, the tunnel needs serious repair and the adjacent west half viaduct, and the three east viaducts are failing and need to be replaced. The half viaducts have exposed reinforcement bar, severe cracks in concrete and are currently braced and supported by temporary timber bracing that ODOT maintenance put in place in 2008. In addition, the tunnel liner is cracked and leaking; the tunnel has limited vertical clearance; and the tunnel floor is in disrepair.
The OR 58: Salt Creek Tunnel and Half-Viaduct project will:
- Replace the half viaduct west of the tunnel
- Replace the three half viaducts east of the tunnel
- Repair the tunnel liner
- Lower the tunnel floor
- Construct variable message signs east and west of the tunnel.
Construction will take place over two construction seasons in 2012 and 2013. The vertical alignment of all four viaducts must be set in relationship to the new tunnel floor elevation. If the floor is not lowered now, while the viaducts are replaced, the opportunity will be lost for the life of the viaducts, which is approximately 75-100 years.
Significant delays in construction this season have affected the $9.37 million project to rebuild four half-viaducts and repair and improve the tunnel liner. ODOT and the contractor are in disagreement over the cause of the delays.
Consequently, a third construction season will be necessary to complete the project.
The schedule now shows that the following work will be completed in 2014:
- Construction of two remaining viaducts (bridges)
- Installation of two Variable Message Signs
- Completion of final paving and striping
While no final construction schedule has been established for 2014, ODOT will work to keep travel impacts to a minimum and any nighttime closures short-lived.
ODOT can assure motorists and commercial freight haulers that there will be no extended complete closure of the highway.
What was accomplished in 2013?
The contractor has completed:
- Lowering the tunnel roadway and sidewalks
- The tunnel liner concrete repairs
- Two of the four viaducts (bridges)
- The pile footing installation for all viaducts
- The tunnel lighting repairs
- The tunnel liner crack Injection and painting
- Installing all permanent signs
What was accomplished in 2012?
Capital Concrete Construction, the primary contractor on the project, completed much of what it set out to accomplish in the first season.
The Aumsville, Oregon firm:
- Lowered the tunnel floor by 18-inches
- Poured and paved the new tunnel floor
- Constructed a new, improved drainage system in the tunnel
- Placed approximately half of the foundation piles for the half viaducts
- Stayed on budget
Project Information Paper
For a postcard that can be printed and supplied to business customers,
Photos of Current Condition:
Please contact the Project Manager with questions or comments about the project. Media inquiries should be referred to the Public Information Officer.
Chuck Lemos, Project Manager, (541) 744-8080
Rick Little, Public Information Officer, (541) 726-2442