US Bridges

FAP 12 over Half Pone Creek

Fair

Cheatham County, Tennessee · 2.2 Mi.S.Of Montgomery CO · Structure no. 11SR0120011

Built
1955
70 years old, rebuilt 2000
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
157 ft
5 main spans
Daily traffic
4,778
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 12 over Half Pone Creek is a prestressed concrete continuous box beam or girders - single or spread carrying FAP 12 over Half Pone Creek in Cheatham County, Tennessee. It was built in 1955 and reconstructed in 2000, so it is 70 years old, older than the Tennessee average of 47.4 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 4,778 vehicles a day, roughly 5% of them trucks, projected to reach 7,528 by 2042. The structure is 157 ft (47.9 m) long and 32 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesFAP 12
CrossesHalf Pone Creek
Location2.2 Mi.S.Of Montgomery CO
RouteState Highway 12
Coordinates36.38385, -87.19093
Functional classRural Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating19.6 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length157 ft (47.9 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.9 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,778 (2021)
Projected traffic7,528 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed12.4 mi (20 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 12 over Half Pone Creek built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2000.

What condition is FAP 12 over Half Pone Creek 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 July 2024.

How much traffic does FAP 12 over Half Pone Creek carry?

About 4,778 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAP 12 over Half Pone Creek?

The structure is 157 ft (47.9 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns FAP 12 over Half Pone Creek?

It is owned by the State Highway Agency.