Structure 22904240811201 · Lafourche County, LA

Us0090 over La1 B.lafourche La 308

Carries Us0090 over La1 B.lafourche La 308, 4.5 Mi East Of La 182.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,231 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

3,231 ft end to end, longest span 155 ft: about 9.0 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.

Built197650 years old
Length3231.0 ft984.8 m
Daily traffic14,300counted 2016
Last inspectedOctober 2023every 24 months

Location

StateLouisiana
CountyLafourche
Location4.5 Mi East Of La 182
CarriesUs0090
CrossesLa1 B.lafourche La 308
Coordinates29.70548, -90.57410

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length3231.0 ft (984.8 m)
Max Span154.9 ft (47.2 m)
Deck Width43.3 ft (13.2 m)
Deck Area12999.4 sq m
Main Spans3
Year Built1976

Traffic

Avg Daily Traffic14,300 (2016)
Truck Traffic18%
Lanes On Bridge2
Lanes Under Bridge8

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number022904240811201

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.

Nearby Bridges