Structure 22600051005871 · Jefferson County, LA

Us0090 over US 90 Bus @ Avondale

Carries Us0090 over US 90 Bus @ Avondale, .7 Mi East Of US 90b.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,409 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

1,409 ft end to end, longest span 80 ft: about 3.9 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.

Built194185 years old
Length1409.1 ft429.5 m
Daily traffic49,920counted 2021
Last inspectedAugust 2023every 24 months

Location

StateLouisiana
CountyJefferson
Location.7 Mi East Of US 90b
CarriesUs0090
CrossesUS 90 Bus @ Avondale
Coordinates29.91421, -90.17510

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1409.1 ft (429.5 m)
Max Span80.1 ft (24.4 m)
Deck Width55.4 ft (16.9 m)
Deck Area7258.6 sq m
Main Spans33
Year Built1941

Traffic

Avg Daily Traffic49,920 (2021)
Truck Traffic10%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022600051005871

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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