US Bridges

Nfa 1912 (sa 6012) over Johnson Branch

Fair

Maury County, Tennessee · 0.2 M. Sw. Culleoka. · Structure no. 60019120003

Built
1945
80 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
2 main spans
Daily traffic
1,068
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1912 (sa 6012) over Johnson Branch is a steel stringer/multi-beam or girder carrying Nfa 1912 (sa 6012) over Johnson Branch in Maury County, Tennessee. It was built in 1945, so it is 80 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 1,068 vehicles a day, roughly 3% of them trucks, projected to reach 1,680 by 2040. The structure is 33 ft (10.1 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNfa 1912 (sa 6012)
CrossesJohnson Branch
Location0.2 M. Sw. Culleoka.
RouteCounty Highway 1912
CountyMaury County
StateTennessee
Coordinates35.4749, -86.99045
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating45.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span18 ft (5.5 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,068 (2021)
Projected traffic1,680 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$140,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1912 (sa 6012) over Johnson Branch built?

It was built in 1945, making it 80 years old in 2025.

What condition is Nfa 1912 (sa 6012) over Johnson 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 May 2024.

How much traffic does Nfa 1912 (sa 6012) over Johnson Branch carry?

About 1,068 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1912 (sa 6012) over Johnson Branch?

The structure is 33 ft (10.1 m) long with a longest span of 18 ft (5.5 m) and a deck 27 ft wide.

Who owns Nfa 1912 (sa 6012) over Johnson Branch?

It is owned by the County Highway Agency.