US Bridges

Natchez Trace Park over Colbert Creek

Good

Lauderdale County, Alabama · 5.99 Miles South of Al Ro · Structure no. 5570026P0000000

Built
1964
61 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
1,100
2024 count
Owner
Federal
National Park Service

About this bridge

Natchez Trace Park over Colbert Creek is a prestressed concrete stringer/multi-beam or girder carrying Natchez Trace Park over Colbert Creek in Lauderdale County, Alabama. It was built in 1964, so it is 61 years old, older than the Alabama average of 51.1 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 1,100 vehicles a day, roughly 3% of them trucks, projected to reach 1,210 by 2044. The structure is 120 ft (36.6 m) long and 32 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesNatchez Trace Park
CrossesColbert Creek
Location5.99 Miles South of Al Ro
RouteFederal Lands Road 1
StateAlabama
Coordinates34.85667, -87.90819
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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating42 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2024)
Projected traffic1,210 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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$113,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Natchez Trace Park over Colbert Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Natchez Trace Park over Colbert Creek 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 2023.

How much traffic does Natchez Trace Park over Colbert Creek carry?

About 1,100 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Natchez Trace Park over Colbert Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 32 ft wide.

Who owns Natchez Trace Park over Colbert Creek?

It is owned by the National Park Service.