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UP - Eagle Creek Bridge

Multnomah County, Oregon

Photos 

Eagle Creek Railroad Bridge

from southeast

Photo taken by Michael Goff on January 10, 2009

Enlarge

BH Photo #132313

Map 

Street View 

Facts 

Overview
Pratt through truss bridge over Eagle Creek on Union Pacific Railroad
Location
Multnomah County, Oregon
Status
Open to traffic
History
Built 1935
Builders
- Bethlehem Steel Co. of Bethlehem, Pennsylvania (Fabricator)
- McClintic-Marshall Co. of Chicago, Illinois & Pittsburgh, Pennsylvania (Fabricator)
- Orino, Bell & Malcolm of Portland, Oregon (Contractor)
Railroads
- Oregon-Washington Railroad & Navigation Co. (OWR&N)
- Union Pacific Railroad (UP)
Design
The Union Pacific Railroad Bridge at Eagle Creek is a two span bridge consisting of two standard Pratt through trusses. The bridge is of a standard style used by the railroads in the early twentieth century.
Dimensions
Length of largest span: 160.0 ft.
Total length: 320.0 ft.
Approximate latitude, longitude
+45.64046, -121.93121   (decimal degrees)
45°38'26" N, 121°55'52" W   (degrees°minutes'seconds")
Approximate UTM coordinates
10/583292/5054657 (zone/easting/northing)
Quadrangle map:
Bonneville Dam
Inventory number
BH 38508 (Bridgehunter.com ID)

Categories 

Bethlehem Steel Co. (118)
Built 1935 (1,714)
Built during 1930s (10,892)
Have street view (24,310)
McClintic-Marshall Co. (70)
Multnomah County, Oregon (111)
Open (37,737)
Oregon (1,069)
Oregon-Washington Railroad & Navigation Co. (53)
Orino, Bell & Malcolm (3)
 Owned by railroad (10,642)
Pratt through truss (4,747)
Pratt truss (8,281)
Railroad (13,996)
Span length 125-175 feet (3,883)
Through truss (13,345)
Total length 250-500 feet (4,772)
Truss (30,158)
Union Pacific Railroad (2,102)

Update Log 

  • November 14, 2018: New photos from Mike Garland
  • March 18, 2018: Updated by Luke: Added builder
  • September 8, 2010: New Street View added by Michael Goff
  • January 12, 2009: Added by Michael Goff

Sources 

  • Mike Goff - michael [dot] goff [at] hotmail [dot] com
  • Luke
  • Mike Garland - Rapier342 [at] comcast [dot] net
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Comments 

UP - Eagle Creek Bridge
Posted September 9, 2015, by SnakeyesX (SnakeyesX23 [at] gmail [dot] com)

This looks like a Pratt to me, not Warren. All bays have their diagonals slope towards midspan and are in tension. Warrens don't have main vertical bars either.