US Bridges

Nfa A231 over MARR0WBONE Creek

Fair

Cheatham County, Tennessee · 2 M. Ne. SR12. · Structure no. 110A2310001

Built
1981
44 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
90 ft
2 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A231 over MARR0WBONE Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A231 over MARR0WBONE Creek in Cheatham County, Tennessee. It was built in 1981, so it is 44 years old, younger 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 110 vehicles a day, roughly 4% of them trucks, projected to reach 176 by 2040. The structure is 90 ft (27.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa A231
CrossesMARR0WBONE Creek
Location2 M. Ne. SR12.
RouteCounty Highway 231
CountyCheatham County
StateTennessee
Coordinates36.2525, -86.99296
Functional classRural Local

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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span43 ft (13.1 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2040
Trucks4%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A231 over MARR0WBONE Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Nfa A231 over MARR0WBONE 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 August 2024.

How much traffic does Nfa A231 over MARR0WBONE Creek carry?

About 110 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A231 over MARR0WBONE Creek?

The structure is 90 ft (27.4 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.

Who owns Nfa A231 over MARR0WBONE Creek?

It is owned by the County Highway Agency.