US Bridges

Natchez Trace Park over Ms Route 46

Good

Clay County, Mississippi · 6.8 Miles South of Ms Rou · Structure no. 5570075P0000000

Built
1960
65 years old
Condition
Good
inspected February 2025
Type
Slab
Concrete Continuous
Length
110 ft
3 main spans
Daily traffic
1,100
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Ms Route 46 is a concrete continuous slab carrying Natchez Trace Park over Ms Route 46 in Clay County, Mississippi. It was built in 1960, so it is 65 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,100 vehicles a day, roughly 4% of them trucks, projected to reach 1,210 by 2044. The structure is 110 ft (33.6 m) long and 32 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesNatchez Trace Park
CrossesMs Route 46
Location6.8 Miles South of Ms Rou
RouteFederal Lands Road 1
Coordinates33.73269, -89.03117
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length110 ft (33.6 m)
Longest span43 ft (13.2 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2024)
Projected traffic1,210 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$9,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over Ms Route 46 built?

It was built in 1960, making it 65 years old in 2025.

What condition is Natchez Trace Park over Ms Route 46 in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2025.

How much traffic does Natchez Trace Park over Ms Route 46 carry?

About 1,100 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Natchez Trace Park over Ms Route 46?

The structure is 110 ft (33.6 m) long with a longest span of 43 ft (13.2 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Ms Route 46?

It is owned by the National Park Service.