US Bridges

Natchez Trace Park over Pigeon Roost Slough

Good

Choctaw County, Mississippi · 1.2 Miles South of U.S. R · Structure no. 5570091P0000000

Built
1956
69 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
85 ft
3 main spans
Daily traffic
520
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Pigeon Roost Slough is a concrete continuous slab carrying Natchez Trace Park over Pigeon Roost Slough in Choctaw County, Mississippi. It was built in 1956, so it is 69 years old, older 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 520 vehicles a day, roughly 5% of them trucks, projected to reach 572 by 2044. The structure is 85 ft (26 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesNatchez Trace Park
CrossesPigeon Roost Slough
Location1.2 Miles South of U.S. R
RouteFederal Lands Road 1
Coordinates33.52669, -89.16094
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length85 ft (26 m)
Longest span32 ft (9.8 m)
Deck width32 ft (9.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2024)
Projected traffic572 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$60,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Natchez Trace Park over Pigeon Roost Slough built?

It was built in 1956, making it 69 years old in 2025.

What condition is Natchez Trace Park over Pigeon Roost Slough 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 Pigeon Roost Slough carry?

About 520 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Natchez Trace Park over Pigeon Roost Slough?

The structure is 85 ft (26 m) long with a longest span of 32 ft (9.8 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Pigeon Roost Slough?

It is owned by the National Park Service.