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Southwest Avenue Bridge

Photos 

Remaining balustrade

Photo taken by James Baughn in November 2008

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BH Photo #127524

Map 

Street View 

Facts 

Overview
Concrete stringer bridge over the Union Pacific Railroad on Southwest Avenue (at Marconi Avenue) in St. Louis
Location
St. Louis, Missouri
Status
Open to traffic with a 20-ton weight limit
History
Built in 1920; southward extension added in 1961
Railroad
- Union Pacific Railroad (UP)
Design
Stringer
Dimensions
Length of largest span: 34.1 ft.
Total length: 123.0 ft.
Deck width: 60.0 ft.
Approximate latitude, longitude
+38.61116, -90.27351   (decimal degrees)
38°36'40" N, 90°16'25" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/737398/4277154 (zone/easting/northing)
Quadrangle map:
Webster Groves
Average daily traffic (as of 2016)
10,460
Inventory numers
MONBI 12883 (Missouri bridge number on the National Bridge Inventory)
BH 38038 (Bridgehunter.com ID)
Inspection report (as of April 2016)
Overall condition: Poor
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Serious (3 out of 9)
Deck condition rating: Serious (3 out of 9)
Sufficiency rating: 2 (out of 100)
View more at BridgeReports.com

Update Log 

  • June 9, 2011: Updated by Mark Dellbringge: New pictures provide proof the 1920 bridge still exists; just an extension was added
  • November 13, 2008: New photos from James Baughn
  • November 8, 2008: Added by James Baughn

Sources 

  • James Baughn - webmaster [at] bridgehunter [dot] com
  • Mark Dellbringge

Comments 

Southwest Avenue Bridge
Posted August 13, 2010, by Mark Dellbringge

As of 8/12/2010 the Southwest Avenue Bridge over the UPRR has a weight limit of 20 tons, and the right lane eastbound is closed.