5 votes

Long-Allen Bridge


Atchafalaya River Old U.S. 90 Bridge

Photo taken by C Hanchey in August 2009


BH Photo #144393


Street Views 


Opened to traffic on December 20, 1933; replaced the Morgan City-Berwick ferry which existed to the south near Railroad Avenue.


Through truss bridge over Atchafalaya River on LA 182 (old US 90) between Berwick and Morgan City
Berwick, St. Mary Parish, Louisiana
Open to traffic
Built 1933 by the Mt. Vernon Bridge Co.
- Mt. Vernon Bridge Co. of Mt. Vernon, Ohio
K-Parker through truss
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
Average daily traffic (as of 2015)
Inventory number
BH 19118 (Bridgehunter.com ID)
Inspection report (as of April 2017)
Overall condition: Poor
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Serious (3 out of 9)
Deck condition rating: Fair (5 out of 9)
Sufficiency rating: 4 (out of 100)
View more at BridgeReports.com

Update Log 

  • February 24, 2018: New photos from Cliff Darby
  • April 28, 2017: Updated by Roger Collins: Added description.
  • March 9, 2016: New photos from M. D. Caillet
  • February 23, 2015: Photo imported by Dave King
  • 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

Related Bridges 



Long-Allen Bridge
Posted October 20, 2018, by Robert Elder (robertelder1 [at] gmail [dot] com)

I drove over this massively huge bridge while seeking shelter from a storm today. All I can say is wow, just wow!

Long-Allen Bridge
Posted December 22, 2014, by Kristen Hanson (kriseh86 [at] gmail [dot] com)

Absolutely fell in love with this bridge. Any history that can be told please share :)