Structure 22604501508011 · Jefferson County, LA

I0010 over Bonnabel Blvd.

Carries I0010 over Bonnabel Blvd., 6.0 Mi East Of La 49.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,655 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

1,655 ft end to end, longest span 75 ft: about 4.6 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 multi-beam bridge.

Built1966rebuilt 2009
Length1654.9 ft504.4 m
Daily traffic80,773counted 2021
Last inspectedJuly 2023every 24 months

Location

StateLouisiana
CountyJefferson
Location6.0 Mi East Of La 49
CarriesI0010
CrossesBonnabel Blvd.
Coordinates29.99700, -90.14620

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length1654.9 ft (504.4 m)
Max Span75.1 ft (22.9 m)
Deck Width91.9 ft (28 m)
Deck Area14123.2 sq m
Main Spans31
Year Built1966 (reconstructed 2009)

Traffic

Avg Daily Traffic80,773 (2021)
Truck Traffic25%
Lanes On Bridge6
Lanes Under Bridge3

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number022604501508011

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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