US Bridges

Nfa A235 over Marrowbone Creek

Good

Cheatham County, Tennessee · 1.19 M. E. SR12. · Structure no. 110A2350003

Built
1994
31 years old
Condition
Good
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
119 ft
3 main spans
Daily traffic
2,010
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A235 over Marrowbone Creek is a prestressed concrete continuous box beam or girders - single or spread carrying Nfa A235 over Marrowbone Creek in Cheatham County, Tennessee. It was built in 1994, so it is 31 years old, younger than the Tennessee average of 47.4 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 2,010 vehicles a day, roughly 4% of them trucks, projected to reach 3,216 by 2040. The structure is 119 ft (36.3 m) long and 28 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa A235
CrossesMarrowbone Creek
Location1.19 M. E. SR12.
RouteCounty Highway 235
Coordinates36.244, -87.00502
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.8 US tons
Inventory rating22.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length119 ft (36.3 m)
Longest span44 ft (13.4 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,010 (2020)
Projected traffic3,216 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A235 over Marrowbone Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Nfa A235 over Marrowbone 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 August 2024.

How much traffic does Nfa A235 over Marrowbone Creek carry?

About 2,010 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A235 over Marrowbone Creek?

The structure is 119 ft (36.3 m) long with a longest span of 44 ft (13.4 m) and a deck 28 ft wide.

Who owns Nfa A235 over Marrowbone Creek?

It is owned by the County Highway Agency.