Structure 24508452000451 · St. Charles County, LA

La3142 over Mp Rr @ Taft

Carries La3142 over Mp Rr @ Taft, .45 Mi North Of La 3127.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,497 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

1,497 ft end to end, longest span 95 ft: about 4.2 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.

Built197749 years old
Length1497.0 ft456.3 m
Daily traffic5,122counted 2021
Last inspectedOctober 2023every 24 months

Location

StateLouisiana
CountySt. Charles
Location.45 Mi North Of La 3127
CarriesLa3142
CrossesMp Rr @ Taft
Coordinates29.97731, -90.45760

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1497.0 ft (456.3 m)
Max Span95.1 ft (29 m)
Deck Width34.4 ft (10.5 m)
Deck Area4791.1 sq m
Main Spans21
Year Built1977

Traffic

Avg Daily Traffic5,122 (2021)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number024508452000451

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