Structure 23604509020561 · Orleans County, LA

Unnamed RD over I-10

Carries Unnamed RD over I-10, 4.5 Mi East Of I-510.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure and Substructure at 0 of 9.

How ratings work
Decksets the rating0/9 · Failed
Superstructuresets the rating0/9 · Failed
Substructuresets the rating0/9 · Failed
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,479 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 0/9Superstructure 0/9Substructure 0/9

1,479 ft end to end, longest span 100 ft: about 4.1 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.

Built196957 years old
Length1479.0 ft450.8 m
Daily traffic28,550counted 2015
Last inspectedDecember 2024every 12 months

Location

StateLouisiana
CountyOrleans
Location4.5 Mi East Of I-510
CarriesUnnamed RD
CrossesI-10
Coordinates30.09089, -89.90716

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1479.0 ft (450.8 m)
Max Span100.1 ft (30.5 m)
Deck Width39.4 ft (12 m)
Deck Area5409.6 sq m
Main Spans12
Year Built1969

Traffic

Avg Daily Traffic28,550 (2015)
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number023604509020561

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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