Structure 35700550303081 · Vermilion County, LA

La0014 over Big Four Canal

Carries La0014 over Big Four Canal, 3.1 Miles West Of La 91.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

60 ft end to end, longest span 20 ft. Lengths and the car 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 slab bridge.

Built195868 years old
Length60.0 ft18.3 m
Daily traffic1,717counted 2021
Last inspectedNovember 2024every 24 months

Location

StateLouisiana
CountyVermilion
Location3.1 Miles West Of La 91
CarriesLa0014
CrossesBig Four Canal
Coordinates30.02141, -92.56600

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length60.0 ft (18.3 m)
Max Span20.0 ft (6.1 m)
Deck Width33.5 ft (10.2 m)
Deck Area186.7 sq m
Main Spans3
Year Built1958

Traffic

Avg Daily Traffic1,717 (2021)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number035700550303081

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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