Structure 625230222900567 · St. Tammany County, LA

Monroe ST W Off Rp over N. Causeway Appr. S Boun

Carries Monroe ST W Off Rp over N. Causeway Appr. S Boun, 0.60 Mi N Of Causeway Br..

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,047 FT OVERALL200 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

1,047 ft end to end, longest span 130 ft: about 2.9 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 box-beam bridge.

Built199333 years old
Length1046.9 ft319.1 m
Daily traffic1,600counted 1995
Last inspectedOctober 2024every 24 months

Location

StateLouisiana
CountySt. Tammany
Location0.60 Mi N Of Causeway Br.
CarriesMonroe ST W Off Rp
CrossesN. Causeway Appr. S Boun
Coordinates30.37334, -90.09231

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length1046.9 ft (319.1 m)
Max Span129.9 ft (39.6 m)
Deck Width20.3 ft (6.2 m)
Deck Area1978.4 sq m
Main Spans5
Year Built1993

Traffic

Avg Daily Traffic1,600 (1995)
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerLocal Toll Authority
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number625230222900567

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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