Structure 625308534000251 · Tangipahoa County, LA

La3234 over I0055

Carries La3234 over I0055, 1.65 Mi West Inter US 51.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT298 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

298 ft end to end, longest span 178 ft: about 4 semi-trucks nose to tail. 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.

Built199531 years old
Length297.9 ft90.8 m
Daily traffic18,303counted 2021
Last inspectedJanuary 2025every 24 months

Location

StateLouisiana
CountyTangipahoa
Location1.65 Mi West Inter US 51
CarriesLa3234
CrossesI0055
Coordinates30.51902, -90.50430

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length297.9 ft (90.8 m)
Max Span178.1 ft (54.3 m)
Deck Width94.2 ft (28.7 m)
Deck Area2606.0 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic18,303 (2021)
Truck Traffic6%
Lanes On Bridge6
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number625308534000251

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.

Nearby Bridges