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Long-Allen Bridge

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Atchafalaya River Old U.S. 90 Bridge

Photo taken by C Hanchey in August 2009

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Facts 

Overview
Through truss bridge over Atchafalaya River on LA 182 (old US 90) between Berwick and Morgan City
Location
St. Mary Parish, Louisiana
Status
Open to traffic
History
Built 1933 by the Mt. Vernon Bridge Co.
Builder
- Mt. Vernon Bridge Co. of Mt. Vernon, Ohio
Design
K-Parker through truss
Dimensions
Length of largest span: 607.7 ft.
Total length: 3,745.1 ft. (0.7 mi.)
Deck width: 23.9 ft.
Vertical clearance above deck: 14.0 ft.
Also called
Atchafalaya River Old U.S. 90 Bridge
Atchafalaya River LA 182 Bridge
Approximate latitude, longitude
+29.69674, -91.21420   (decimal degrees)
29°41'48" N, 91°12'51" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/672771/3286516 (zone/easting/northing)
Quadrangle map:
Morgan City
Inventory number
BH 19118 (Bridgehunter.com ID)
Inspection (as of 02/2012)
Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Serious (3 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 6.0 (out of 100)
Average daily traffic (as of 2012)
6,100

Update Log 

  • May 3, 2010: New Street View added by Nathan Holth
  • March 26, 2010: New photos from David Backlin
  • August 6, 2009: Updated by C Hanchey: Added Bridge Builder

Sources