Structure 25500050507161 · Terrebonne County, LA

La0182 over Bayou Terrebonne

Carries La0182 over Bayou Terrebonne, 0.1 Mi East Of La 24 West.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure5/9 · Fair
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT86 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 5/9Substructure 5/9

86 ft end to end. 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 girder bridge.

Built195472 years old
Length86.0 ft26.2 m
Daily traffic3,687counted 2021
Last inspectedNovember 2024every 12 months

Location

StateLouisiana
CountyTerrebonne
Location0.1 Mi East Of La 24 West
CarriesLa0182
CrossesBayou Terrebonne
Coordinates29.59889, -90.71893

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length86.0 ft (26.2 m)
Max Span54.1 ft (16.5 m)
Deck Width40.0 ft (12.2 m)
Deck Area319.6 sq m
Main Spans1
Year Built1954

Traffic

Avg Daily Traffic3,687 (2021)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number025500050507161

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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