US Bridges

Natchez Trace Park over I-20

Fair

Hinds County, Mississippi · 8.0 Miles from Ms Route 4 · Structure no. 5570140P0000000

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
4 main spans
Daily traffic
1,130
2022 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over I-20 is a prestressed concrete stringer/multi-beam or girder carrying Natchez Trace Park over I-20 in Hinds County, Mississippi. It was built in 1965, so it is 60 years old, older 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 1,130 vehicles a day, projected to reach 1,356 by 2042. The structure is 251 ft (76.5 m) long and 32 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesNatchez Trace Park
CrossesI-20
Location8.0 Miles from Ms Route 4
RouteFederal Lands Road 1
CountyHinds County
StateMississippi
Coordinates32.34247, -90.35411
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length251 ft (76.5 m)
Longest span83 ft (25.2 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,130 (2022)
Projected traffic1,356 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed29.8 mi (48 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 proposedNone recorded
Estimated improvement cost$86,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over I-20 built?

It was built in 1965, making it 60 years old in 2025.

What condition is Natchez Trace Park over I-20 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 April 2024.

How much traffic does Natchez Trace Park over I-20 carry?

About 1,130 vehicles per day (2022 count).

How long is Natchez Trace Park over I-20?

The structure is 251 ft (76.5 m) long with a longest span of 83 ft (25.2 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over I-20?

It is owned by the National Park Service.