US Bridges

Natchez Trace Park over Illinois Central RR

Fair

Attala County, Mississippi · 3.1 Miles South of Ms Rou · Structure no. 5570113P0000000

Built
1951
74 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
545
2022 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Illinois Central RR is a steel stringer/multi-beam or girder carrying Natchez Trace Park over Illinois Central RR in Attala County, Mississippi. It was built in 1951, so it is 74 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 545 vehicles a day, roughly 14% of them trucks, projected to reach 654 by 2042. The structure is 52 ft (15.9 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesNatchez Trace Park
CrossesIllinois Central RR
Location3.1 Miles South of Ms Rou
RouteFederal Lands Road 1
CountyAttala County
StateMississippi
Coordinates33.06767, -89.54961
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
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 alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length52 ft (15.9 m)
Longest span49 ft (14.9 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic545 (2022)
Projected traffic654 by 2042
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed8.1 mi (13 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$15,000 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Natchez Trace Park over Illinois Central RR built?

It was built in 1951, making it 74 years old in 2025.

What condition is Natchez Trace Park over Illinois Central RR 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 2024.

How much traffic does Natchez Trace Park over Illinois Central RR carry?

About 545 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is Natchez Trace Park over Illinois Central RR?

The structure is 52 ft (15.9 m) long with a longest span of 49 ft (14.9 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Illinois Central RR?

It is owned by the National Park Service.