Structure 40700670412371 · Bienville County, LA

La0004 over Drain

Carries La0004 over Drain, 4.1 Mi East Of La 155.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck4/9 · Poor
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT76 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 3/9 · sets the rating

76 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 multi-beam bridge.

Built192799 years old
Length76.1 ft23.2 m
Daily traffic890counted 2021
Last inspectedApril 2024every 12 months

Location

StateLouisiana
CountyBienville
Location4.1 Mi East Of La 155
CarriesLa0004
CrossesDrain
Coordinates32.21226, -92.81930

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length76.1 ft (23.2 m)
Max Span19.0 ft (5.8 m)
Deck Width26.2 ft (8 m)
Deck Area185.6 sq m
Main Spans4
Year Built1927

Traffic

Avg Daily Traffic890 (2021)
Truck Traffic19%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number040700670412371

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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