Structure 581100360109881 · Caldwell County, LA

La0004 over Beouf River Relief

Carries La0004 over Beouf River Relief, 5.1 Mi East Of La 559.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT140 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

140 ft end to end, longest span 20 ft. 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 slab bridge.

Built195769 years old
Length140.1 ft42.7 m
Daily traffic1,558counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateLouisiana
CountyCaldwell
Location5.1 Mi East Of La 559
CarriesLa0004
CrossesBeouf River Relief
Coordinates32.07530, -91.93620

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length140.1 ft (42.7 m)
Max Span20.0 ft (6.1 m)
Deck Width31.2 ft (9.5 m)
Deck Area405.6 sq m
Main Spans7
Year Built1957

Traffic

Avg Daily Traffic1,558 (2021)
Truck Traffic21%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number581100360109881

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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