US Bridges

Nfa A352 over Branch

Fair

Williamson County, Tennessee · 5.4 MI SW JCT SR46&SR96 · Structure no. 940A3520003

Built
1980
45 years old
Condition
Fair
inspected May 2023
Type
Culvert
Concrete
Length
35 ft
1 main span
Daily traffic
430
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A352 over Branch is a concrete culvert carrying Nfa A352 over Branch in Williamson County, Tennessee. It was built in 1980, so it is 45 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 5 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 430 vehicles a day, roughly 2% of them trucks, projected to reach 688 by 2041. The structure is 35 ft (10.7 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesNfa A352
CrossesBranch
Location5.4 MI SW JCT SR46&SR96
RouteCounty Highway 352
CountyWilliamson County
StateTennessee
Coordinates35.88108, -87.0002
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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic430 (2020)
Projected traffic688 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$55,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A352 over Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa A352 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 May 2023.

How much traffic does Nfa A352 over Branch carry?

About 430 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A352 over Branch?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m) and a deck 26 ft wide.

Who owns Nfa A352 over Branch?

It is owned by the County Highway Agency.