US Bridges

Nfa A113 over South Fork Young Branch

Good

Smith County, Tennessee · 4.9 MI NW JCT SR80&SR85 · Structure no. 800A1130003

Built
2017
8 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
26 ft
2 main spans
Daily traffic
80
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A113 over South Fork Young Branch is a concrete continuous culvert carrying Nfa A113 over South Fork Young Branch in Smith County, Tennessee. It was built in 2017, so it is 8 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 80 vehicles a day, roughly 1% of them trucks, projected to reach 128 by 2042. The structure is 26 ft (7.8 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesNfa A113
CrossesSouth Fork Young Branch
Location4.9 MI NW JCT SR80&SR85
RouteCounty Highway 113
Coordinates36.3729, -86.02673
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length26 ft (7.8 m)
Longest span10 ft (3 m)
Deck width27 ft (8.2 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2020)
Projected traffic128 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 A113 over South Fork Young Branch built?

It was built in 2017, making it 8 years old in 2025.

What condition is Nfa A113 over South Fork Young Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Nfa A113 over South Fork Young Branch carry?

About 80 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A113 over South Fork Young Branch?

The structure is 26 ft (7.8 m) long with a longest span of 10 ft (3 m) and a deck 27 ft wide.

Who owns Nfa A113 over South Fork Young Branch?

It is owned by the County Highway Agency.