Structure 35030237915451 · St. Martin County, LA

Adam Guidry RD over Coulee

Carries Adam Guidry RD over Coulee, 0.2 Mi. SW Of La 686.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
CAR · 15 FT38 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

38 ft end to end, longest span 19 ft. 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 slab bridge.

Built196858 years old
Length38.1 ft11.6 m
Daily traffic160counted 2020
Last inspectedOctober 2024every 24 months

Location

StateLouisiana
CountySt. Martin
Location0.2 Mi. SW Of La 686
CarriesAdam Guidry RD
CrossesCoulee
Coordinates30.39561, -91.90862

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length38.1 ft (11.6 m)
Max Span19.0 ft (5.8 m)
Deck Width26.2 ft (8 m)
Deck Area92.8 sq m
Main Spans2
Year Built1968

Traffic

Avg Daily Traffic160 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number035030237915451

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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