Structure 24504503606467 · St. Charles County, LA

I0310 over Icg Rr Yard Ramps F & H

Carries I0310 over Icg Rr Yard Ramps F & H, 5.35 Mi S Jct I-10.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,355 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

1,355 ft end to end, longest span 75 ft: about 3.8 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.

Built198046 years old
Length1355.0 ft413 m
Daily traffic15,642counted 2021
Last inspectedMay 2024every 24 months

Location

StateLouisiana
CountySt. Charles
Location5.35 Mi S Jct I-10
CarriesI0310
CrossesIcg Rr Yard Ramps F & H
Coordinates29.95426, -90.36740

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length1355.0 ft (413 m)
Max Span75.1 ft (22.9 m)
Deck Width27.6 ft (8.4 m)
Deck Area3469.2 sq m
Main Spans19
Year Built1980

Traffic

Avg Daily Traffic15,642 (2021)
Truck Traffic25%
Lanes On Bridge1
Lanes Under Bridge3

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number024504503606467

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