Structure 35002130804881 · St. Martin County, LA

La0092 over Teche Bayou

Carries La0092 over Teche Bayou, 0.49 Mi E Of La 31.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT323 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

323 ft end to end: about 4 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 swing bridge (drawn closed).

Built198442 years old
Length323.2 ft98.5 m
Daily traffic4,071counted 2021
Last inspectedNovember 2024every 24 months

Location

StateLouisiana
CountySt. Martin
Location0.49 Mi E Of La 31
CarriesLa0092
CrossesTeche Bayou
Coordinates30.09583, -91.83450

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length323.2 ft (98.5 m)
Max Span142.1 ft (43.3 m)
Deck Width34.8 ft (10.6 m)
Deck Area1044.1 sq m
Main Spans1
Year Built1984

Traffic

Avg Daily Traffic4,071 (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 Number035002130804881

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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