Structure 23629599900571 · Orleans County, LA

Diagonal DR over City Park Lagoon

Carries Diagonal DR over City Park Lagoon, O.1mi.n.of Magnolia.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

60 ft end to end. Lengths and the car 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 deck arch.

Built193987 years old
Length60.0 ft18.3 m
Last inspectedMay 2023every 24 months

Location

StateLouisiana
CountyOrleans
LocationO.1mi.n.of Magnolia
CarriesDiagonal DR
CrossesCity Park Lagoon
Coordinates29.99690, -90.09607

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length60.0 ft (18.3 m)
Max Span43.0 ft (13.1 m)
Deck Width52.2 ft (15.9 m)
Deck Area291.0 sq m
Main Spans1
Year Built1939

Traffic

Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerLocal Park/Forest Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number023629599900571

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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