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8th Street Bridge

Photos 

8th Street Bridge

Portal view.

Photo taken by Mike Goff in October 2019

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BH Photo #459768

Map 

Description 

The 8th Street Bridge over the Umatilla River in Pendleton replaced the over 100 year two span pin-connected truss at the same location in 2019.

The structure pay homage to the original truss bridge with a single span weathering steel Warren through truss. There are single pre-stressed concrete approach spans on each approach and an attached pedestrian walkway along the downstream side of the bridge.

Through the structure replaced a cherished historic bridge for the region, the new structure is a beautifully designed structure that enhances the site with the addition of pedestrian facilities and an undercrossing for the river walk along the Umatilla River.

Facts 

Overview
Modern Warren through truss bridge over Umatilla River on 8th Street/Lee Street
Location
Pendleton, Umatilla County, Oregon
Status
Open to traffic
History
Built 2019
Design
Modern Warren through truss
Dimensions
Length of largest span: 191.9 ft.
Total length: 270.0 ft.
Deck width: 34.0 ft.
Vertical clearance above deck: 17.3 ft.
Also called
New 8th Street Bridge
Approximate latitude, longitude
+45.67634, -118.77960   (decimal degrees)
45°40'35" N, 118°46'47" W   (degrees°minutes'seconds")
Approximate UTM coordinates
11/361400/5059627 (zone/easting/northing)
Elevation
1090 ft. above sea level
Inventory number
BH 87143 (Bridgehunter.com ID)

Update Log 

  • November 7, 2019: Added by Mike Goff

Related Bridges 

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com

Comments 

8th Street Bridge
Posted November 7, 2019, by Nathan Holth (webmaster [at] historicbridges [dot] org)

I still feel this is a sad outcome. I hope this isn't the future for the Oregon Coast Highway Conde McCullough bridges too. I would have preferred to see the original pin-connected Pratt trusses widened and placed on a bridge as decorative elements, thereby preserving one of the last pin-connected highway trusses in Oregon, an outcome that has been done in other states like New Jersey. The design of the replacement truss lacks the character-defining features of the historic truss including but not limited to a Pratt truss configuration, pin connections, and built-up beams with lacing. The new bridge design is pretty standard, they might not be common in Oregon, but many states out east build welded/bolted modern trusses, some in large quantities.

The modern truss would have been a great solution, IF the historic trusses were relocated and preserved elsewhere. But I do not believe this is the case here.

Oregon has traditionally had a good preservation track record, I am concerned... why is there suddenly this effort to destroy historic bridges? The other one at risk is the Van Buren Street Bridge, a swing bridge that also has pin connections. In the context of Oregon, pin-connected trusses are one of the rarest bridge types in the state. Does this count for nothing?