Structure 23604509004154 · Orleans County, LA

Us0090 over City Streets

Carries Us0090 over City Streets, .58 Mi East Of US 90.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT3,455 FT OVERALL500 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

3,455 ft end to end, longest span 100 ft: about 9.6 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 girder bridge.

Built195670 years old
Length3455.1 ft1053.1 m
Daily traffic49,920counted 2021
Last inspectedFebruary 2024every 24 months

Location

StateLouisiana
CountyOrleans
Location.58 Mi East Of US 90
CarriesUs0090
CrossesCity Streets
Coordinates29.94747, -90.08760

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length3455.1 ft (1053.1 m)
Max Span100.1 ft (30.5 m)
Deck Width57.4 ft (17.5 m)
Deck Area18429.2 sq m
Main Spans85
Year Built1956

Traffic

Avg Daily Traffic49,920 (2021)
Truck Traffic20%
Lanes On Bridge3
Lanes Under Bridge13

Inspection & Ownership

Last InspectionFebruary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number023604509004154

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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