US Bridges

Flint Hill RD over Unnamed Creek

Good

Jefferson County, Alabama · At JCT I-20/59 * I-459 · Structure no. 013072

Built
1983
42 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
44
2023 count
Owner
County
County Highway Agency

About this bridge

Flint Hill RD over Unnamed Creek is a concrete culvert carrying Flint Hill RD over Unnamed Creek in Jefferson County, Alabama. It was built in 1983, so it is 42 years old, younger 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 44 vehicles a day, projected to reach 63 by 2043. The structure is 26 ft (7.9 m) long and 42 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesFlint Hill RD
CrossesUnnamed Creek
LocationAt JCT I-20/59 * I-459
RouteCounty Highway 449
StateAlabama
Coordinates33.34428, -87.02293
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating54.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span12 ft (3.6 m)
Deck width42 ft (12.9 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2023)
Projected traffic63 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$449,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Flint Hill RD over Unnamed Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Flint Hill RD over Unnamed 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 November 2023.

How much traffic does Flint Hill RD over Unnamed Creek carry?

About 44 vehicles per day (2023 count).

How long is Flint Hill RD over Unnamed Creek?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.6 m) and a deck 42 ft wide.

Who owns Flint Hill RD over Unnamed Creek?

It is owned by the County Highway Agency.