Structure 23608360801331 · Orleans County, LA

La0407 over (new)algiers Cutoff Cana

Carries La0407 over (new)algiers Cutoff Cana, 1.6 Mi SE Of La 428.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
5,082 FT OVERALL1,000 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

5,082 ft end to end, longest span 300 ft: about 14 football fields. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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 girder bridge.

Built198541 years old
Length5082.0 ft1,549 m
Daily traffic11,240counted 2021
Last inspectedAugust 2023every 24 months

Location

StateLouisiana
CountyOrleans
Location1.6 Mi SE Of La 428
CarriesLa0407
Crosses(new)algiers Cutoff Cana
Coordinates29.90902, -89.99180

Physical Characteristics

MaterialSteel Continuous
DesignGirder and Floorbeam
Total Length5082.0 ft (1,549 m)
Max Span299.9 ft (91.4 m)
Deck Width76.8 ft (23.4 m)
Deck Area36246.6 sq m
Main Spans3
Year Built1985

Traffic

Avg Daily Traffic11,240 (2021)
Truck Traffic11%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number023608360801331

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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