Structure 34900080402331 · St. Landry County, LA

Us0190 over Atchafalaya Floodway

Carries Us0190 over Atchafalaya Floodway, 0.6 Mi East Of La 3174.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,984 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

3,984 ft end to end, longest span 52 ft: about 11 football fields. 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 multi-beam bridge.

Built1961rebuilt 1977
Length3983.9 ft1214.3 m
Daily traffic20,176counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateLouisiana
CountySt. Landry
Location0.6 Mi East Of La 3174
CarriesUs0190
CrossesAtchafalaya Floodway
Coordinates30.54111, -91.78200

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length3983.9 ft (1214.3 m)
Max Span51.8 ft (15.8 m)
Deck Width34.4 ft (10.5 m)
Deck Area12750.1 sq m
Main Spans77
Year Built1961 (reconstructed 1977)

Traffic

Avg Daily Traffic20,176 (2021)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number034900080402331

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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