US Bridges

Nfa A319 over Hardin Branch

Fair

Warren County, Tennessee · 3 MI North of US70S · Structure no. 890A1200001

Built
1955
70 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
60
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A319 over Hardin Branch is a concrete culvert carrying Nfa A319 over Hardin Branch in Warren County, Tennessee. It was built in 1955, so it is 70 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 60 vehicles a day, roughly 2% of them trucks, projected to reach 96 by 2042. The structure is 26 ft (7.9 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNfa A319
CrossesHardin Branch
Location3 MI North of US70S
RouteCounty Highway 319
CountyWarren County
StateTennessee
Coordinates35.74522, -85.84305
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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length26 ft (7.9 m)
Longest span26 ft (7.9 m)
Deck width17 ft (5.1 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic60 (2020)
Projected traffic96 by 2042
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$181,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A319 over Hardin Branch built?

It was built in 1955, making it 70 years old in 2025.

What condition is Nfa A319 over Hardin 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 March 2023.

How much traffic does Nfa A319 over Hardin Branch carry?

About 60 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A319 over Hardin Branch?

The structure is 26 ft (7.9 m) long with a longest span of 26 ft (7.9 m) and a deck 17 ft wide.

Who owns Nfa A319 over Hardin Branch?

It is owned by the County Highway Agency.