Structure 5570364P0000000 · Jefferson County, MS

Natchez Trace Park over County Road

Carries Natchez Trace Park over County Road, 5.8 Miles South Of Ms Rou.

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
CAR · 15 FT116 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

116 ft end to end, longest span 78 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 tee-beam bridge.

Built198640 years old
Length116.1 ft35.4 m
Daily traffic266counted 2022
Last inspectedFebruary 2025every 24 months

Location

StateMississippi
CountyJefferson
Location5.8 Miles South Of Ms Rou
CarriesNatchez Trace Park
CrossesCounty Road
Coordinates31.78428, -91.12295

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length116.1 ft (35.4 m)
Max Span78.1 ft (23.8 m)
Deck Width32.8 ft (10 m)
Deck Area354 sq m
Main Spans3
Year Built1986

Traffic

Avg Daily Traffic266 (2022)
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 Number5570364P0000000

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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