US Bridges

Natchez Trace Park over Ms Route 12

Fair

Attala County, Mississippi · 5.8 Miles North of Ms Rou · Structure no. 5570111P0000000

Built
1950
75 years old
Condition
Fair
inspected March 2024
Type
Frame
Concrete
Length
70 ft
1 main span
Daily traffic
750
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Ms Route 12 is a concrete frame carrying Natchez Trace Park over Ms Route 12 in Attala County, Mississippi. It was built in 1950, so it is 75 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 750 vehicles a day, roughly 4% of them trucks, projected to reach 825 by 2044. The structure is 70 ft (21.3 m) long and 32 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

CarriesNatchez Trace Park
CrossesMs Route 12
Location5.8 Miles North of Ms Rou
RouteFederal Lands Road 1
Coordinates33.09731, -89.51336
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be 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 rating30 US tons
Inventory rating18 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic750 (2024)
Projected traffic825 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed31.7 mi (51 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$30,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over Ms Route 12 built?

It was built in 1950, making it 75 years old in 2025.

What condition is Natchez Trace Park over Ms Route 12 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does Natchez Trace Park over Ms Route 12 carry?

About 750 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Natchez Trace Park over Ms Route 12?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Ms Route 12?

It is owned by the National Park Service.