Structure 616100130102231 · West Baton Rouge County, LA

La0415 over Stream No Name

Carries La0415 over Stream No Name, 0.2 M N Of La 415@la 413.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT85 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 85 ft across with 5 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.

Built1926rebuilt 1990
Length85.0 ft25.9 m
Daily traffic21,189counted 2021
Last inspectedJune 2023every 24 months

Location

StateLouisiana
CountyWest Baton Rouge
Location0.2 M N Of La 415@la 413
CarriesLa0415
CrossesStream No Name
Coordinates30.46509, -91.24976

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length85.0 ft (25.9 m)
Max Span5.9 ft (1.8 m)
Deck Width80.1 ft (24.4 m)
Deck Area632.0 sq m
Main Spans5
Year Built1926 (reconstructed 1990)

Traffic

Avg Daily Traffic21,189 (2021)
Truck Traffic9%
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 Number616100130102231

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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