US Bridges

Nfa A423 over Liggett Branch

Fair

Sumner County, Tennessee · 4.5 MI NE JCT SR174&SR258 · Structure no. 830A4230007

Built
1987
38 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete Continuous
Length
38 ft
2 main spans
Daily traffic
230
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A423 over Liggett Branch is a concrete continuous culvert carrying Nfa A423 over Liggett Branch in Sumner County, Tennessee. It was built in 1987, so it is 38 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 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 230 vehicles a day, roughly 12% of them trucks, projected to reach 368 by 2041. The structure is 38 ft (11.6 m) long and 26 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesNfa A423
CrossesLiggett Branch
Location4.5 MI NE JCT SR174&SR258
RouteCounty Highway 0A423
CountySumner County
StateTennessee
Coordinates36.43222, -86.58105
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span12 ft (3.7 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2020)
Projected traffic368 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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$271,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa A423 over Liggett Branch built?

It was built in 1987, making it 38 years old in 2025.

What condition is Nfa A423 over Liggett 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 January 2025.

How much traffic does Nfa A423 over Liggett Branch carry?

About 230 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is Nfa A423 over Liggett Branch?

The structure is 38 ft (11.6 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

Who owns Nfa A423 over Liggett Branch?

It is owned by the County Highway Agency.