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Nearby Bridges in NBI 2021: 1


LOCAL ROAD over LAFOURCHE BAYOU (Route: 0)
Num:22929260901781x
Posted for load [P]
Built: 1956, Reconstructed: 2009
Historic: Bridge is eligible for the NRHP. [2]

Google Streetview (If Available)

Rough Distance: 0 Miles (0 Kilometers)

Bridge Type
Main Span(s): Steel [3] Movable - Swing [17]
Approach Span(s): Wood or timber [7] Mixed types [20]
Deck: Steel plate (includes orthotropic) [5] with Wearing Surface:
Bridge Dimensions
Length: 41.5 m = 136.2 ft
Main Spans: 1 at 21.9 m = 71.9 ft
Approach Spans: 4
Skew: 0
Width, Roadway: 7.6 m = 24.9 ft (2 Lanes) and Out-To-Out: 11 m = 36.1 ft for a 7.9 m = 25.9 ft approaching roadway.
Vertical Clearance: 5.44 m = 17.8 ft and Navigational Clearance: 304.5 m = 999.1 ft
Location
Unknown [00000]: Lafourche Parish [057], Louisiana [22]
Owned by County Highway Agency [02], DOT District: 2
0001 LOG MI FROM IN
Condition
Deck: Satisfactory [6]
Superstructure: Fair [5]
Substructure: Fair [5]
Loading
Design: MS 13.5 / HS 15 [3]
Operating: 15.6 metric ton = 17.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Inventory: 12 metric ton = 13.2 tons (Load and Resistance Factor Rating (LRFR) rating reported by rating factor (RF) method using HL-93 loadings [8])
Appraisal
Structural: Basically intolerable requiring high priority of corrrective action [3]
Deck Geometry: Basically intolerable requiring high priority of replacement [2]
Road Alignment: Meets minimum tolerable limits to be left in place as is [4]
Waterway: Better than present minimum criteria [7] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: July 1999 [799] and Frequency: 24
Future Work
Work Needed:
Bridge Detour: 1.3 km = 0.8 mi
Traffic
ADT: 8000 (1971) and Trucks: 0%
Future ADT: 12000 (In 2036 )

Special Bridge Conditions Legend: R - Former location of relocated bridge. ! - At risk for demolition or destruction. X - Confirmed demolished or collapsed. S  - Dismantled and/or in storage. L -  Severe loss of historic integrity due to alteration.

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