Structure 71004509133432 · Calcasieu County, LA

I0010 over Kayouche Coulee

Carries I0010 over Kayouche Coulee, 2.5 Mi W Of La 397.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT300 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

300 ft end to end, longest span 20 ft: about 4 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.

Built196462 years old
Length299.9 ft91.4 m
Daily traffic11,437counted 2021
Last inspectedDecember 2024every 24 months

Location

StateLouisiana
CountyCalcasieu
Location2.5 Mi W Of La 397
CarriesI0010
CrossesKayouche Coulee
Coordinates30.24641, -93.16783

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length299.9 ft (91.4 m)
Max Span20.0 ft (6.1 m)
Deck Width55.1 ft (16.8 m)
Deck Area1535.5 sq m
Main Spans15
Year Built1964

Traffic

Avg Daily Traffic11,437 (2021)
Truck Traffic25%
Lanes On Bridge3

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number071004509133432

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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