Rating:
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Atchafalaya Basin Bridge

St. Martin Parish, Louisiana

Photos 

Atchafalaya Basin Bridge

Looking West near Atchafalaya River

Photo taken by Royce and Bobette Haley in May 2014

Enlarge

BH Photo #317980

Map 

Street View 

Description 

These twin bridges span the entire Atchafalaya Basin. Built in the early 1970s, these bridges are two of the longest, and most-heavily traversed bridges in the state of Louisiana. NBI has them broken into 4-mile segments; the length in feet is approximate for the entire structure.

Facts 

Overview
Pair of 16+ mile bridges over the Atchafalaya Basin on I-10
Location
St. Martin Parish, Louisiana
Status
Open to traffic
History
Built 1971
Design
Stringer
Dimensions
Length of largest span: 573.2 ft.
Total length: 23,441.1 ft. (4.4 mi.)
Deck width: 40.0 ft.
Approximate latitude, longitude
+30.33230, -91.75897   (decimal degrees)
30°19'56" N, 91°45'32" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/619297/3356260 (zone/easting/northing)
Quadrangle map:
Cecilia
Average daily traffic (as of 2016)
28,300
Inventory number
BH 46720 (Bridgehunter.com ID)
Inspection report (as of September 2018)
Overall condition: Fair
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Deck condition rating: Satisfactory (6 out of 9)
Sufficiency rating: 91.7 (out of 100)
View more at BridgeReports.com

Categories 

Atchafalaya River (13)
Beam (16,880)
Built 1971 (119)
Built during 1970s (993)
Have street view (28,893)
Interstate 10 (25)
Louisiana (728)
 Open (40,969)
Over a mile long (311)
Owned by state (16,554)
Span length 500-1000 feet (403)
St. Martin Parish, Louisiana (18)
Total length over 2500 feet (951)

Update Log 

  • March 14, 2015: New photos from Royce and Bobette Haley
  • October 29, 2010: Updated by Cliff Darby: Edited Description
  • October 28, 2010: Updated by Cliff Darby: Updated Information

Sources 

  • Cliff Darby - cliffsta1987 [at] gmail [dot] com
  • Wikipedia
  • Royce and Bobette Haley - roycehaley111 [at] yahoo [dot] com

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