Structure 85800000080640 · Vernon County, LA

La0121 over Yellow Dog Branch

Carries La0121 over Yellow Dog Branch, 0.6 Miles West Of La 28.

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
CAR · 15 FT80 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

80 ft end to end, longest span 20 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.

Built201511 years old
Length80.1 ft24.4 m
Daily traffic1,700counted 2021
Last inspectedJune 2024every 24 months

Location

StateLouisiana
CountyVernon
Location0.6 Miles West Of La 28
CarriesLa0121
CrossesYellow Dog Branch
Coordinates31.19474, -93.06580

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length80.1 ft (24.4 m)
Max Span20.0 ft (6.1 m)
Deck Width32.5 ft (9.9 m)
Deck Area241.6 sq m
Main Spans4
Year Built2015

Traffic

Avg Daily Traffic1,700 (2021)
Truck Traffic14%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number085800000080640

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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