US Bridges

Natchez Trace Park over Liberty Road

Fair

Adams County, Mississippi · At South End of Parkway. · Structure no. 5570485P0000000

Built
2004
21 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
227 ft
1 main span
Daily traffic
266
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Liberty Road is a prestressed concrete box beam or girders - single or spread carrying Natchez Trace Park over Liberty Road in Adams County, Mississippi. It was built in 2004, so it is 21 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 266 vehicles a day, projected to reach 319 by 2044. The structure is 227 ft (69.2 m) long and 37 ft wide.

Location

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CarriesNatchez Trace Park
CrossesLiberty Road
LocationAt South End of Parkway.
RouteFederal Lands Road 1
CountyAdams County
StateMississippi
Coordinates31.54525, -91.36903
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHL 93
Structure length227 ft (69.2 m)
Longest span157 ft (47.9 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic266 (2024)
Projected traffic319 by 2044
Trucks0%
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$60,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over Liberty Road built?

It was built in 2004, making it 21 years old in 2025.

What condition is Natchez Trace Park over Liberty 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 June 2024.

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

About 266 vehicles per day (2024 count).

How long is Natchez Trace Park over Liberty Road?

The structure is 227 ft (69.2 m) long with a longest span of 157 ft (47.9 m) and a deck 37 ft wide.

Who owns Natchez Trace Park over Liberty Road?

It is owned by the National Park Service.