Structure 23600000020434 · Orleans County, LA

Copernicus ST over Algiers Canal

Carries Copernicus ST over Algiers Canal, 0.5 Miles South Of US 90b.

Overall conditionGood

Set by its lowest-rated component: Culvert at 7 of 9.

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 41 ft across. 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, so those are drawn as typical for a culvert.

Built199333 years old
Length41.0 ft12.5 m
Last inspectedJanuary 2023every 24 months

Location

StateLouisiana
CountyOrleans
Location0.5 Miles South Of US 90b
CarriesCopernicus ST
CrossesAlgiers Canal
Coordinates29.93422, -90.03614

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length41.0 ft (12.5 m)
Max Span41.0 ft (12.5 m)
Deck Width133.5 ft (40.7 m)
Deck Area508.8 sq m
Main Spans1
Year Built1993

Traffic

Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number023600000020434

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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