Structure SA2700000000090 · Humphreys County, MS

Tharp Road over Tupper Bayou

Carries Tharp Road over Tupper Bayou, Sec 24 T16n R 4w B.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

39 ft end to end, longest span 20 ft. Lengths and the car 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 channel-beam bridge.

Built197452 years old
Length39.4 ft12 m
Daily traffic140counted 2021
Last inspectedSeptember 2024every 12 months

Location

StateMississippi
CountyHumphreys
LocationSec 24 T16n R 4w B
CarriesTharp Road
CrossesTupper Bayou
Coordinates33.21576, -90.57272

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length39.4 ft (12 m)
Max Span19.7 ft (6 m)
Deck Width26.2 ft (8 m)
Deck Area96 sq m
Main Spans200
Year Built1974

Traffic

Avg Daily Traffic140 (2021)
Truck Traffic8%
Lanes On Bridge20

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberSA2700000000090

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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