Structure 35703970304251 · Vermilion County, LA

La0330 over Bayou Tigre

Carries La0330 over Bayou Tigre, 4.25 Mi N. Of La 685.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT323 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

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).

Built196066 years old
Length323.2 ft98.5 m
Daily traffic1,523counted 2021
Last inspectedMarch 2023every 24 months

Location

StateLouisiana
CountyVermilion
Location4.25 Mi N. Of La 685
CarriesLa0330
CrossesBayou Tigre
Coordinates29.91709, -91.99870

Physical Characteristics

MaterialSteel
DesignMovable - Swing
Total Length323.2 ft (98.5 m)
Max Span163.1 ft (49.7 m)
Deck Width19.4 ft (5.9 m)
Deck Area581.1 sq m
Main Spans1
Year Built1960

Traffic

Avg Daily Traffic1,523 (2021)
Truck Traffic13%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number035703970304251

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