Structure 32300000030397 · Iberia County, LA

Us0090 over La 85

Carries Us0090 over La 85, 3.40 Mi W Of La 688.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,541 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

1,541 ft end to end, longest span 114 ft: about 4.3 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.

Built201115 years old
Length1541.0 ft469.7 m
Daily traffic10,090counted 2021
Last inspectedJune 2023every 24 months

Location

StateLouisiana
CountyIberia
Location3.40 Mi W Of La 688
CarriesUs0090
CrossesLa 85
Coordinates29.91835, -91.72646

Physical Characteristics

MaterialConcrete
DesignStringer/Multi-beam
Total Length1541.0 ft (469.7 m)
Max Span113.8 ft (34.7 m)
Deck Width42.3 ft (12.9 m)
Deck Area6059.1 sq m
Main Spans19
Year Built2011

Traffic

Avg Daily Traffic10,090 (2021)
Truck Traffic24%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number032300000030397

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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