Structure 84004550536111 · Rapides County, LA

I0049 over Cotton Bayou

Carries I0049 over Cotton Bayou, 0.71 Mi. North Of La 498.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

260 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.

Built199135 years old
Length259.8 ft79.2 m
Daily traffic25,033counted 2021
Last inspectedOctober 2024every 24 months

Location

StateLouisiana
CountyRapides
Location0.71 Mi. North Of La 498
CarriesI0049
CrossesCotton Bayou
Coordinates31.34868, -92.52740

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length259.8 ft (79.2 m)
Max Span20.0 ft (6.1 m)
Deck Width42.7 ft (13 m)
Deck Area1029.6 sq m
Main Spans13
Year Built1991

Traffic

Avg Daily Traffic25,033 (2021)
Truck Traffic16%
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 Number084004550536111

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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