US Bridges

Akin Ridge Road over Natchez Trace Parkway

Fair

Maury County, Tennessee · 2.75 Miles to Tn Route 50 · Structure no. 5570422P0000000

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
207 ft
3 main spans
Daily traffic
215
2019 count
Owner
Federal
National Park Service

About this bridge

Akin Ridge Road over Natchez Trace Parkway is a prestressed concrete continuous box beam or girders - single or spread carrying Akin Ridge Road over Natchez Trace Parkway in Maury County, Tennessee. It was built in 1987, so it is 38 years old, younger than the Tennessee average of 47.4 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 215 vehicles a day, roughly 2% of them trucks, projected to reach 235 by 2039. The structure is 207 ft (63.1 m) long and 29 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

Location

Open in Google Maps
CarriesAkin Ridge Road
CrossesNatchez Trace Parkway
Location2.75 Miles to Tn Route 50
RouteFederal Lands Road 1
CountyMaury County
StateTennessee
Coordinates35.73383, -87.22069
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 alignment6: Equal to present minimum criteria
Operating rating91.9 US tons
Inventory rating55 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span150 ft (45.7 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 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 closed60.3 mi (97 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$120,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Akin Ridge Road over Natchez Trace Parkway built?

It was built in 1987, making it 38 years old in 2025.

What condition is Akin Ridge Road over Natchez Trace Parkway 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 Akin Ridge Road over Natchez Trace Parkway carry?

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

How long is Akin Ridge Road over Natchez Trace Parkway?

The structure is 207 ft (63.1 m) long with a longest span of 150 ft (45.7 m) and a deck 29 ft wide.

Who owns Akin Ridge Road over Natchez Trace Parkway?

It is owned by the National Park Service.