Structure 19147 · Calhoun County, AL

Sr1/us431 over Sr4/us78

Carries Sr1/us431 over Sr4/us78, Oxford.

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 FT840 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

840 ft end to end, longest span 130 ft: about 2.3 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.

Built200323 years old
Length839.9 ft256 m
Daily traffic40,376counted 2022
Last inspectedJanuary 2024every 24 months

Location

StateAlabama
CountyCalhoun
LocationOxford
CarriesSr1/us431
CrossesSr4/us78
Coordinates33.61440, -85.78603

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length839.9 ft (256 m)
Max Span129.9 ft (39.6 m)
Deck Width84.6 ft (25.8 m)
Deck Area6604.8 sq m
Main Spans10
Year Built2003

Traffic

Avg Daily Traffic40,376 (2022)
Truck Traffic9%
Lanes On Bridge7
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number019147

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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