Structure 84300250302851 · Sabine County, LA

Us0171 over Lewis Creek

Carries Us0171 over Lewis Creek, 1.67 Mi. North Of La 175.

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 FT160 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

160 ft end to end, longest span 20 ft: about 2 semi-trucks nose to tail. 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.

Built199036 years old
Length160.1 ft48.8 m
Daily traffic3,273counted 2021
Last inspectedOctober 2024every 24 months

Location

StateLouisiana
CountySabine
Location1.67 Mi. North Of La 175
CarriesUs0171
CrossesLewis Creek
Coordinates31.59002, -93.52690

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length160.1 ft (48.8 m)
Max Span20.0 ft (6.1 m)
Deck Width46.9 ft (14.3 m)
Deck Area697.8 sq m
Main Spans8
Year Built1990

Traffic

Avg Daily Traffic3,273 (2021)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number084300250302851

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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