US Bridges

Nfa A321 over Branch

Fair

Lauderdale County, Tennessee · 5 Mi. W. of Haywood Co. · Structure no. 490A3210001

Built
1983
42 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
20
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A321 over Branch is a concrete continuous culvert carrying Nfa A321 over Branch in Lauderdale County, Tennessee. It was built in 1983, so it is 42 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 20 vehicles a day, roughly 2% of them trucks, projected to reach 32 by 2042. The structure is 37 ft (11.3 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A321
CrossesBranch
Location5 Mi. W. of Haywood Co.
RouteCounty Highway 321
CountyLauderdale County
StateTennessee
Coordinates35.64922, -89.51869
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 inspectionDecember 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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating71.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span15 ft (4.6 m)
Deck width29 ft (8.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2020)
Projected traffic32 by 2042
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 A321 over Branch built?

It was built in 1983, making it 42 years old in 2025.

What condition is Nfa A321 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 2023.

How much traffic does Nfa A321 over Branch carry?

About 20 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A321 over Branch?

The structure is 37 ft (11.3 m) long with a longest span of 15 ft (4.6 m) and a deck 29 ft wide.

Who owns Nfa A321 over Branch?

It is owned by the County Highway Agency.