Structure 624800000620342 · St. John the Baptist County, LA

I0010 over Drain

Carries I0010 over Drain, 0.10 Mi. E. Of La 3188.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 31 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built198442 years old
Length30.8 ft9.4 m
Daily traffic27,372counted 2021
Last inspectedJune 2023every 24 months

Location

StateLouisiana
CountySt. John the Baptist
Location0.10 Mi. E. Of La 3188
CarriesI0010
CrossesDrain
Coordinates30.10545, -90.49696

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length30.8 ft (9.4 m)
Max Span7.9 ft (2.4 m)
Deck Width379.9 ft (115.8 m)
Deck Area1088.5 sq m
Main Spans3
Year Built1984

Traffic

Avg Daily Traffic27,372 (2021)
Truck Traffic26%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number624800000620342

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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