US Bridges

Nfa A011 over Johns Branch

Fair

Maury County, Tennessee · 9 M NW of Columbia · Structure no. 600A0110001

Built
1979
46 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
49 ft
2 main spans
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A011 over Johns Branch is a concrete continuous culvert carrying Nfa A011 over Johns Branch in Maury County, Tennessee. It was built in 1979, so it is 46 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 140 vehicles a day, roughly 2% of them trucks, projected to reach 224 by 2040. The structure is 49 ft (14.9 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A011
CrossesJohns Branch
Location9 M NW of Columbia
RouteCounty Highway 11
CountyMaury County
StateTennessee
Coordinates35.67019, -87.18722
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic224 by 2040
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 A011 over Johns Branch built?

It was built in 1979, making it 46 years old in 2025.

What condition is Nfa A011 over Johns Branch 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 Nfa A011 over Johns Branch carry?

About 140 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A011 over Johns Branch?

The structure is 49 ft (14.9 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns Nfa A011 over Johns Branch?

It is owned by the County Highway Agency.