US Bridges

Natchez Trace Park over Palmetto Road

Fair

Lee County, Mississippi · 4.6 Mi. South of Ms Route · Structure no. 5570481P0000000

Built
2001
24 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
165 ft
3 main spans
Daily traffic
3,600
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Palmetto Road is a concrete continuous slab carrying Natchez Trace Park over Palmetto Road in Lee County, Mississippi. It was built in 2001, so it is 24 years old, younger 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 3,600 vehicles a day, roughly 1% of them trucks, projected to reach 3,960 by 2044. The structure is 165 ft (50.4 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNatchez Trace Park
CrossesPalmetto Road
Location4.6 Mi. South of Ms Route
RouteFederal Lands Road 11
CountyLee County
StateMississippi
Coordinates34.19147, -88.79161
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.4 m)
Longest span70 ft (21.4 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2024)
Projected traffic3,960 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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$12,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Natchez Trace Park over Palmetto Road built?

It was built in 2001, making it 24 years old in 2025.

What condition is Natchez Trace Park over Palmetto Road 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 2023.

How much traffic does Natchez Trace Park over Palmetto Road carry?

About 3,600 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Natchez Trace Park over Palmetto Road?

The structure is 165 ft (50.4 m) long with a longest span of 70 ft (21.4 m) and a deck 37 ft wide.

Who owns Natchez Trace Park over Palmetto Road?

It is owned by the National Park Service.