US Bridges

Nfa 5574 (sa 8017) over Young Branch

Good

Smith County, Tennessee · 4.9 MI NW JCT SR80&SR85 · Structure no. 80020820005

Built
1984
41 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
32 ft
2 main spans
Daily traffic
575
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 5574 (sa 8017) over Young Branch is a concrete continuous culvert carrying Nfa 5574 (sa 8017) over Young Branch in Smith County, Tennessee. It was built in 1984, so it is 41 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 575 vehicles a day, roughly 3% of them trucks, projected to reach 990 by 2042. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa 5574 (sa 8017)
CrossesYoung Branch
Location4.9 MI NW JCT SR80&SR85
RouteCounty Highway 5574
CountySmith County
StateTennessee
Coordinates36.3753, -86.02203
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
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 adequacy7: Better than 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 length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic575 (2021)
Projected traffic990 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$106,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 5574 (sa 8017) over Young Branch built?

It was built in 1984, making it 41 years old in 2025.

What condition is Nfa 5574 (sa 8017) over 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 5574 (sa 8017) over Young Branch carry?

About 575 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 5574 (sa 8017) over Young Branch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 25 ft wide.

Who owns Nfa 5574 (sa 8017) over Young Branch?

It is owned by the County Highway Agency.