Structure 35000000030459 · St. Martin County, LA

I0010-e over La 328

Carries I0010-e over La 328, 6.6 Mi E Of US 167.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT248 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

248 ft end to end, longest span 127 ft: about 3 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 multi-beam bridge.

Built20206 years old
Length248.0 ft75.6 m
Daily traffic50,425counted 2021
Last inspectedMay 2024every 24 months

Location

StateLouisiana
CountySt. Martin
Location6.6 Mi E Of US 167
CarriesI0010-e
CrossesLa 328
Coordinates30.29494, -91.91622

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length248.0 ft (75.6 m)
Max Span127.0 ft (38.7 m)
Deck Width65.9 ft (20.1 m)
Deck Area1519.6 sq m
Main Spans3
Year Built2020

Traffic

Avg Daily Traffic50,425 (2021)
Truck Traffic15%
Lanes On Bridge3
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number035000000030459

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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