US Bridges

Nfa 5574 (sa 8017) over Stone Branch

Good

Smith County, Tennessee · 3.7 MI NW JCT SR80&SR85 · Structure no. 80020820009

Built
1987
38 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
73
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 5574 (sa 8017) over Stone Branch is a concrete continuous culvert carrying Nfa 5574 (sa 8017) over Stone Branch in Smith 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 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 73 vehicles a day, roughly 3% of them trucks, projected to reach 147 by 2042. The structure is 27 ft (8.2 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa 5574 (sa 8017)
CrossesStone Branch
Location3.7 MI NW JCT SR80&SR85
RouteCounty Highway 5574
CountySmith County
StateTennessee
Coordinates36.37478, -85.96878
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 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length27 ft (8.2 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 traffic73 (2021)
Projected traffic147 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

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

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

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

About 73 vehicles per day (2021 count), of which roughly 3% are trucks.

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

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 26 ft wide.

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

It is owned by the County Highway Agency.