Structure 25502460100021 · Terrebonne County, LA

La0024 over Bayou Terrebonne

Carries La0024 over Bayou Terrebonne, 0.4 Mi. E Of Intracoastal.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

155 ft end to end: about 2 semi-trucks nose to tail. 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 lift bridge (drawn closed).

Built200620 years old
Length154.9 ft47.2 m
Daily traffic30,800counted 2016
Last inspectedSeptember 2024every 24 months

Location

StateLouisiana
CountyTerrebonne
Location0.4 Mi. E Of Intracoastal
CarriesLa0024
CrossesBayou Terrebonne
Coordinates29.59811, -90.70390

Physical Characteristics

MaterialSteel
DesignMovable - Lift
Total Length154.9 ft (47.2 m)
Max Span57.1 ft (17.4 m)
Deck Width66.9 ft (20.4 m)
Deck Area962.9 sq m
Main Spans1
Year Built2006

Traffic

Avg Daily Traffic30,800 (2016)
Truck Traffic10%
Lanes On Bridge4

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number025502460100021

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