Structure 35104240510602 · St. Mary County, LA

Us0090 over La 3211

Carries Us0090 over La 3211, US 90 WB Over La 3211.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,960 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,960 ft end to end, longest span 70 ft: about 5.4 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.

Built200125 years old
Length1960.0 ft597.4 m
Daily traffic10,063counted 2021
Last inspectedMay 2023every 24 months

Location

StateLouisiana
CountySt. Mary
LocationUS 90 WB Over La 3211
CarriesUs0090
CrossesLa 3211
Coordinates29.79413, -91.53280

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1960.0 ft (597.4 m)
Max Span69.9 ft (21.3 m)
Deck Width43.0 ft (13.1 m)
Deck Area7825.9 sq m
Main Spans28
Year Built2001

Traffic

Avg Daily Traffic10,063 (2021)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number035104240510602

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