Rating:
1 vote

UP - Lake Amistad Bridge

Photos 

Beyond the west approach

Photo taken by Nathan Morton in March 2013

Enlarge

BH Photo #252753

Map 

Street View 

Facts 

Overview
Polygonal Warren through truss bridge over Lake Amistad (reservoir)
Location
Del Rio, Val Verde County, Texas
Status
Open to traffic
History
Built 1963 on new alignment for Amistad Reservoir Project
Railroads
- Southern Pacific Railroad (SP)
- Union Pacific Railroad (UP)
Design
Polygonal Warren through truss with all verticals
Dimensions
Length of largest span: 403.0 ft.
Total length: 2,243.0 ft. (0.4 mi.)
Deck width: 24.0 ft.
Also called
SP - Lake Amistad Bridge
Approximate latitude, longitude
+29.48574, -101.03543   (decimal degrees)
29°29'09" N, 101°02'08" W   (degrees°minutes'seconds")
Approximate UTM coordinates
14/302661/3263529 (zone/easting/northing)
Quadrangle map:
Amistad Dam
Inventory number
BH 39074 (Bridgehunter.com ID)

Update Log 

  • April 19, 2021: New photo from Geoff Hubbs
  • September 25, 2014: New photo from Royce and Bobette Haley
  • September 24, 2014: New photos from Royce and Bobette Haley
  • September 23, 2014: New Street View added by Ralph Demars
  • September 23, 2014: Updated by Royce and Bobette Haley: added build date
  • April 22, 2013: New photos from Nathan Morton
  • February 26, 2011: Updated by Craig Philpott: corrected location

Sources 

  • Craig Philpott - craigphilpott63 [at] gmail [dot] com
  • Nathan Morton - morton890 [at] yahoo [dot] com
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com
  • Geoff Hubbs

Comments 

UP - Lake Amistad Bridge
Posted March 12, 2021, by Paul

This is a Warren truss because the diagonal members form a repeating "W" shape. Technically, it could be called a polygonal Warren because the top chord has multiple slopes instead of being parallel to the lower chord. A Parker truss also has the polygonal top chord, but its diagonals would be sloping downward from the top chord toward the center of the span rather than in a continuous W shape.

UP - Lake Amistad Bridge
Posted February 26, 2021, by A.C. (amandasoliscurtis [at] gmail [dot] com)

Is this bridge a Warren through truss as stated above? I have no bridge identification experience but to me it looks more like a Parker truss type. Can the reason why this is a Warren truss be explained to me. Thank you!