US Bridges

Natchez Trace Park over County Line Road

Good

Hinds County, Mississippi · 3P Project Section · Structure no. 5570472P0000000

Built
1996
29 years old
Condition
Good
inspected March 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
491 ft
3 main spans
Daily traffic
5,600
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over County Line Road is a prestressed concrete continuous box beam or girders - single or spread carrying Natchez Trace Park over County Line Road in Hinds County, Mississippi. It was built in 1996, so it is 29 years old, younger than the Mississippi average of 38.9 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 5,600 vehicles a day, roughly 1% of them trucks, projected to reach 6,160 by 2044. The structure is 491 ft (149.7 m) long and 37 ft wide.

CarriesNatchez Trace Park
CrossesCounty Line Road
Location3P Project Section
RouteFederal Lands Road 0
Coordinates32.39994, -90.23802
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 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating14 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length491 ft (149.7 m)
Longest span211 ft (64.3 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,600 (2024)
Projected traffic6,160 by 2044
Trucks1%
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over County Line Road built?

It was built in 1996, making it 29 years old in 2025.

What condition is Natchez Trace Park over County Line Road 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 2024.

How much traffic does Natchez Trace Park over County Line Road carry?

About 5,600 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is Natchez Trace Park over County Line Road?

The structure is 491 ft (149.7 m) long with a longest span of 211 ft (64.3 m) and a deck 37 ft wide.

Who owns Natchez Trace Park over County Line Road?

It is owned by the National Park Service.