Structure 22604300102821 · Jefferson County, LA

La3139 over La South & Kcs. Railroad

Carries La3139 over La South & Kcs. Railroad, .8 Mi East Of La 3152.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,907 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

1,907 ft end to end, longest span 100 ft: about 5.3 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built198442 years old
Length1907.2 ft581.3 m
Daily traffic55,872counted 2021
Last inspectedJuly 2023every 24 months

Location

StateLouisiana
CountyJefferson
Location.8 Mi East Of La 3152
CarriesLa3139
CrossesLa South & Kcs. Railroad
Coordinates29.97114, -90.16560

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1907.2 ft (581.3 m)
Max Span100.1 ft (30.5 m)
Deck Width107.6 ft (32.8 m)
Deck Area19066.6 sq m
Main Spans22
Year Built1984

Traffic

Avg Daily Traffic55,872 (2021)
Truck Traffic18%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022604300102821

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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