US Bridges

Nfa A566 over Branch

Fair

Sumner County, Tennessee · 3.3 M NW JCT SR109&SR174 · Structure no. 83SR1090009

Built
1932
93 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
290
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A566 over Branch is a concrete continuous culvert carrying Nfa A566 over Branch in Sumner County, Tennessee. It was built in 1932, so it is 93 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 290 vehicles a day, roughly 8% of them trucks, projected to reach 464 by 2041. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

Open in Google Maps
CarriesNfa A566
CrossesBranch
Location3.3 M NW JCT SR109&SR174
RouteCounty Highway 0A566
CountySumner County
StateTennessee
Coordinates36.44602, -86.47097
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 inspectionDecember 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 rating53.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic290 (2020)
Projected traffic464 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.3 mi (68 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 A566 over Branch built?

It was built in 1932, making it 93 years old in 2025.

What condition is Nfa A566 over 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 December 2024.

How much traffic does Nfa A566 over Branch carry?

About 290 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Nfa A566 over Branch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Nfa A566 over Branch?

It is owned by the County Highway Agency.