Rating:
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Bayou Des Allemands LA 631 Bridge

St. Charles Parish, Louisiana, and Lafourche Parish, Louisiana

Photos 

West Approach

Photo taken by David Backlin in March 2010

Enlarge

BH Photo #159147

Map 

Street View 

Facts 

Overview
Swing bridge over Bayou Des Allemands on LA 631 (old US 90) in Des Allemands
Location
Des Allemands, St. Charles Parish, Louisiana, and Lafourche Parish, Louisiana
Status
Open to traffic
History
Built 1935
Design
Swing
Dimensions
Length of largest span: 110.8 ft.
Total length: 541.8 ft.
Deck width: 23.9 ft.
Approximate latitude, longitude
+29.82356, -90.47669   (decimal degrees)
29°49'25" N, 90°28'36" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/743837/3301905 (zone/easting/northing)
Quadrangle map:
Des Allemands
Average daily traffic (as of 2016)
1,280
Inventory number
BH 19105 (Bridgehunter.com ID)
Inspection report (as of July 2017)
Overall condition: Fair
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 45.1 (out of 100)
View more at BridgeReports.com

Categories 

Built 1935 (1,734)
Built during 1930s (11,026)
Des Allemands, Louisiana (2)
Have street view (24,949)
Lafourche Parish, Louisiana (27)
Louisiana (672)
Movable (2,826)
Navigable waterway (2,088)
 Open (38,304)
Owned by state (14,858)
Span length 100-125 feet (4,197)
St. Charles Parish, Louisiana (7)
Swing (1,348)
Total length 500-1000 feet (2,632)
US 90 (61)

Update Log 

  • March 27, 2010: New photos from David Backlin
  • March 23, 2010: Updated by David Backlin: Revised description

Sources 

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