Structure 31003020470348B · Marshall County, MS

SR 302 over US 72

Carries SR 302 over US 72, SR 302 Over US 72.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT734 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

734 ft end to end, longest span 224 ft: about 2.0 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.

Built200224 years old
Length733.9 ft223.7 m
Daily traffic30counted 2023
Last inspectedJune 2024every 24 months

Location

StateMississippi
CountyMarshall
LocationSR 302 Over US 72
CarriesSR 302
CrossesUS 72
Coordinates34.96543, -89.54457

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length733.9 ft (223.7 m)
Max Span224.1 ft (68.3 m)
Deck Width32.8 ft (10 m)
Deck Area2,237 sq m
Main Spans4
Year Built2002

Traffic

Avg Daily Traffic30 (2023)
Truck Traffic17%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number31003020470348B

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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