US Bridges

County Road over Natchez Trace Parkway

Good

Maury County, Tennessee · 3.6 Miles from Tn Route 7 · Structure no. 5570433P0000000

Built
1988
37 years old
Condition
Good
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
233 ft
3 main spans
Daily traffic
215
2019 count
Owner
Federal
National Park Service

About this bridge

County Road over Natchez Trace Parkway is a prestressed concrete continuous box beam or girders - single or spread carrying County Road over Natchez Trace Parkway in Maury County, Tennessee. It was built in 1988, so it is 37 years old, younger than the Tennessee average of 47.4 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 215 vehicles a day, roughly 2% of them trucks, projected to reach 235 by 2039. The structure is 233 ft (70.9 m) long and 32 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Road
CrossesNatchez Trace Parkway
Location3.6 Miles from Tn Route 7
RouteFederal Lands Road 1
Coordinates35.82106, -87.14356
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length233 ft (70.9 m)
Longest span164 ft (50.1 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic215 (2019)
Projected traffic235 by 2039
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$105,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road over Natchez Trace Parkway built?

It was built in 1988, making it 37 years old in 2025.

What condition is County Road over Natchez Trace Parkway 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 March 2023.

How much traffic does County Road over Natchez Trace Parkway carry?

About 215 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is County Road over Natchez Trace Parkway?

The structure is 233 ft (70.9 m) long with a longest span of 164 ft (50.1 m) and a deck 32 ft wide.

Who owns County Road over Natchez Trace Parkway?

It is owned by the National Park Service.