US Bridges

Nfa 2086 (sa 8510) over N Fork Scanty Branch

Good

Trousdale County, Tennessee · 4 MI NE JCT25&SMITH Cl · Structure no. 85020860009

Built
1992
33 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
31 ft
2 main spans
Daily traffic
120
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2086 (sa 8510) over N Fork Scanty Branch is a concrete continuous culvert carrying Nfa 2086 (sa 8510) over N Fork Scanty Branch in Trousdale County, Tennessee. It was built in 1992, so it is 33 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 120 vehicles a day, roughly 4% of them trucks, projected to reach 240 by 2041. The structure is 31 ft (9.4 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa 2086 (sa 8510)
CrossesN Fork Scanty Branch
Location4 MI NE JCT25&SMITH Cl
RouteCounty Highway 2086
CountyTrousdale County
StateTennessee
Coordinates36.39374, -86.00904
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionMarch 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 alignment8: Equal to present desirable 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 length31 ft (9.4 m)
Longest span10 ft (3 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2021)
Projected traffic240 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$62,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2086 (sa 8510) over N Fork Scanty Branch built?

It was built in 1992, making it 33 years old in 2025.

What condition is Nfa 2086 (sa 8510) over N Fork Scanty 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 March 2023.

How much traffic does Nfa 2086 (sa 8510) over N Fork Scanty Branch carry?

About 120 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Nfa 2086 (sa 8510) over N Fork Scanty Branch?

The structure is 31 ft (9.4 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns Nfa 2086 (sa 8510) over N Fork Scanty Branch?

It is owned by the County Highway Agency.