Bridgehunter.com | Plaquemine LA 1 Bridge

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Photo taken by Ben Tate in February 2012

Overview: Vertical lift bridge over on LA 1 at Plaquemine
Location: Iberville Parish, Louisiana
Status: Open to traffic
History: Built ca. 1950
Design: Vertical lift
Dimensions: Length of largest span: 149.9 ft.
Total length: 458.8 ft.
Deck width: 27.9 ft.
Vertical clearance above deck: 17.0 ft.
Approximate latitude, longitude: +30.29333, -91.23833 (decimal degrees)
30°17'36" N, 91°14'18" W (degrees°minutes'seconds")
Approximate UTM coordinates: 15/669419/3352603 (zone/easting/northing)
USGS topographic map: Plaquemine
Inventory number: BH 19028 (Bridgehunter.com ID)
Inspection (as of 10/2011): Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Satisfactory (6 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 47.0 (out of 100)
Average daily traffic (as of 2011): 15,960

Plaquemine LA 1 Bridge

Posted January 4, 2012, by Nathan Holth (form3 [at] historicbridges [dot] org)

For those who might wonder, this appears to be a vertical lift bridge whose towers were cut off now that the river is not navigable for tall boats.

Plaquemine LA 1 Bridge

Posted July 8, 2011, by Nathan Holth (form3 [at] historicbridges [dot] org)

The railroad bridge looks like an overhead counterweight trunnion bascule bridge designed by Strauss Bascule Bridge Company. It may date to ca. 1915, since it is very similar to the Deering Bridge in Chicago: http://www.historicbridges.org/bridges/browser/?bridgebrowser=illinois/nchicago/

Plaquemine LA 1 Bridge

Posted July 7, 2011, by Jared (albermarle52 [at] gmail [dot] com)

I wonder how old that RR bridge is.

(Photo courtesy of Bridge Hunter's own C. Hanchey)