Structure 31000150092520A · Chickasaw County, MS

SR 15 over SR 8

Carries SR 15 over SR 8, SR 15 Over SR 8.

Overall conditionGood

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT328 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

328 ft end to end, longest span 88 ft: about 5 semi-trucks nose to tail. 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.

Built199234 years old
Length328.4 ft100.1 m
Daily traffic1,150counted 2023
Last inspectedJanuary 2025every 24 months

Location

StateMississippi
CountyChickasaw
LocationSR 15 Over SR 8
CarriesSR 15
CrossesSR 8
Coordinates33.89370, -89.03381

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length328.4 ft (100.1 m)
Max Span87.9 ft (26.8 m)
Deck Width41.3 ft (12.6 m)
Deck Area1261.3 sq m
Main Spans4
Year Built1992

Traffic

Avg Daily Traffic1,150 (2023)
Truck Traffic14%
Lanes On Bridge2
Lanes Under Bridge5

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number31000150092520A

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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