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Bayou Black Bridge

Bayou Black Bridge

Primary Photographer(s): Nathan Holth

Bridge Documented: October 9, 2019

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Key Facts

Facility Carried / Feature Intersected
LA-182 (Bayou Black Drive) (Old US-90 Alignment) Over Bayou Black
Location
Rural: Terrebonne Parish, Louisiana: United States
Structure Type
Metal Rivet-Connected Warren Deck Truss, Movable: Vertical Lift (Span Drive) and Approach Spans: Metal Stringer (Multi-Beam), Fixed
Construction Date and Builder / Engineer
1946 By Builder/Contractor: Robinson and Young of Baton Rouge, Louisiana and Engineer/Design: Louisiana Highway Commission

Technical Facts

Rehabilitation Date
Not Available or Not Applicable
Main Span Length
61 Feet (19 Meters)
Structure Length
189 Feet (58 Meters)
Roadway Width
24 Feet (7.32 Meters)
Spans
1 Main Span(s) and 6 Approach Span(s)
NBI Number
25500050400001

Historic Significance Rating (HSR)

Bridge Documentation

This is a very unusual lightweight deck truss vertical lift bridge that no longer operates for boats and has had all traces of its lift towers removed. The road used to be part of US-90. Plans for the bridge indicate it was motor operated, but for emergencies could also be run as a hand-operated lift bridge, with an operating capstan which would be attached through a hole in the deck, to the gears and machinery, all contained on the lift span under the deck.

View Archived National Bridge Inventory Report - Has Additional Details and Evaluation

View Original Plans For This Bridge Showing Vertical Lift Design

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Photo Galleries and Videos: Bayou Black Bridge

 
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Bridge Photo-Documentation
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A collection of overview and detail photos. This gallery offers photos in the highest available resolution and file size in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer
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Bridge Photo-Documentation
Mobile Optimized Photos
A collection of overview and detail photos. This gallery features data-friendly, fast-loading photos in a touch-friendly popup viewer. Alternatively, Browse Without Using Viewer

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Maps and Links: Bayou Black Bridge

Coordinates (Latitude, Longitude):
29.684895,-90.998569

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Bridgehunter.com: View listed bridges within a half mile of this bridge.

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