US Bridges

Natchez Trace Park over Tn State Park Road

Poor

Lewis County, Tennessee · 2.9 Miles from Tn Route 9 · Structure no. 5570001P0000000

Built
1968
57 years old, rebuilt 1984
Condition
Poor
inspected March 2023
Type
Slab
Concrete Continuous
Length
106 ft
3 main spans
Daily traffic
460
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Tn State Park Road is a concrete continuous slab carrying Natchez Trace Park over Tn State Park Road in Lewis County, Tennessee. It was built in 1968 and reconstructed in 1984, so it is 57 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 460 vehicles a day, roughly 2% of them trucks, projected to reach 506 by 2044. The structure is 106 ft (32.2 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesNatchez Trace Park
CrossesTn State Park Road
Location2.9 Miles from Tn Route 9
RouteFederal Lands Road 1
CountyLewis County
StateTennessee
Coordinates35.60628, -87.40406
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
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 rating34 US tons
Inventory rating20.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length106 ft (32.2 m)
Longest span42 ft (12.7 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2024)
Projected traffic506 by 2044
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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$3.2 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over Tn State Park Road built?

It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1984.

What condition is Natchez Trace Park over Tn State Park Road in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.

How much traffic does Natchez Trace Park over Tn State Park Road carry?

About 460 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is Natchez Trace Park over Tn State Park Road?

The structure is 106 ft (32.2 m) long with a longest span of 42 ft (12.7 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Tn State Park Road?

It is owned by the National Park Service.