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North Umpqua River Bridge
Description
The bridge at the Soda Springs Dam over the North Umpqua River is a pin-connected Pratt through truss. The pin-connected design would indicate the bridge was fabricated far earlier than its 1955 construction date. This bridge is more than likely a recycled bridge from another area and was placed it its current location in 1955 as part of the North Umpqua River Hydroelectric Project. The bridge is estimated to be built between 1900 and 1920.North Umpqua Hydroelectric Project is located in south central Oregon in a remote area of Douglas County, about 60 miles east of Roseburg. Constructed between 1947 and 1956, the eight hydroelectric developments use water primarily from the North Umpqua River and from two of its major tributaries, the Clearwater River and Fish Creek, to generate electricity.
(Hydro Project Data Courtesy of PacificCorp – North Umpqua River Project Overview)
Facts
- Overview
- Pratt through truss bridge over North Umpqua River on Soda Springs Road
- Location
- Douglas County, Oregon
- Status
- Replaced by a new bridge in 2010
- Future prospects
- Replaced as part of the Soda Springs Dam fish passage project in 2010.
- History
- Built 1955, Replaced 2010
- Design
- The North Umpqua River Bridge at the Soda Springs Dam is a pin-connected Pratt through truss.
- Dimensions
-
Length of largest span: 140.0 ft.
Total length: 172.9 ft.
Deck width: 14.1 ft.
Vertical clearance above deck: 20.0 ft.
- Approximate latitude, longitude
- +43.30306, -122.49660 (decimal degrees)
43°18'11" N, 122°29'48" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 10/540829/4794593 (zone/easting/northing)
- Quadrangle map:
- Toketee Falls
- Inventory number
- BH 29953 (Bridgehunter.com ID)
Related Bridges
- Mott Bridge (Downstream) - Three modern bridges between structures
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