Structure 5570075P0000000 · Clay County, MS

Natchez Trace Park over Ms Route 46

Carries Natchez Trace Park over Ms Route 46, 6.8 Miles South Of Ms Rou.

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
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

110 ft end to end, longest span 43 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 slab bridge.

Built196066 years old
Length110.2 ft33.6 m
Daily traffic1,100counted 2024
Last inspectedFebruary 2025every 24 months

Location

StateMississippi
CountyClay
Location6.8 Miles South Of Ms Rou
CarriesNatchez Trace Park
CrossesMs Route 46
Coordinates33.73269, -89.03117

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length110.2 ft (33.6 m)
Max Span43.3 ft (13.2 m)
Deck Width32.5 ft (9.9 m)
Deck Area332.6 sq m
Main Spans3
Year Built1960

Traffic

Avg Daily Traffic1,100 (2024)
Truck Traffic4%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionFebruary 2025
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number5570075P0000000

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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