OR 39: Alameda Ave. Partial Viaduct
Construction begins on the Crater Lake Parkway (OR Highway 39) near Esplanade Street
A contractor working for the Oregon Department of Transportation began a $1.2 million dollar replacement project of the OR39 Alameda Avenue partial-viaduct in January 2011. Traffic will be restricted to one lane in each direction on the Crater Lake Parkway for 4-6 months.
January 7, 2011 - ODOT Begins Construction on Alameda Viaduct
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For the most current traffic conditions in the project area, visit TripCheck.
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- Replace the existing viaduct (half bridge) structure that is over the Bureau of Reclamation canal with a wall.
- Widen the viaduct to accommodate the sidewalk approaches at either end.
- Replace the existing substandard railing.
|Why this project is needed|
The viaduct was built in 1949. The last inspection was done in June, 2010 and rates the viaduct as “fair to poor.” The deck is in poor condition and has extensive cracking and de-lamination (coming apart). The girders in the superstructure that supports the deck are cracking and showing signs of general deterioration. There are also cracking and deterioration problems with the substructure (caps, columns and footings).
Scouring underneath the Alameda Ave. partial viaduct.
In addition, there is ongoing soil erosion and undermining of the existing structure’s foundation. Past attempts to control the erosion included applying a layer of concrete to the face of the embankment. This has not proven to be very effective, as the soils continue to erode, and continues to be a maintenance problem.
The viaduct has substandard railings and shoulders. On either side of the viaduct there are sidewalks but they end at the viaduct forcing pedestrians to walk along the highway shoulder.
|How ODOT plans to solve these problems|
|The existing viaduct will be removed and replaced with a cast-in-place retaining wall. The area behind the wall will be filled and the roadway re-built on the fill material. |
An overhang that attaches to the retaining wall will be built that supports a sidewalk and guardrail.
Construction is planned during the winter months when the canal is typically drained. Construction is expected to take 4-5 months.
| Final Plans:
|| August 2010|
| Contract bid let:
|| October 2010|
| Construction begins:
|| Winter 2011|
| Construction completed:
|| Spring 2011 |
|Estimated Total Project Cost|
|$1.2 million |
||Office Phone |
||Construction Project Manager