US Bridges

Nfa A206 over Branch

Good

Smith County, Tennessee · 3.2 MI NW JCT I40&SR 141 · Structure no. 800A2060001

Built
1980
45 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
64 ft
3 main spans
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A206 over Branch is a concrete continuous culvert carrying Nfa A206 over Branch in Smith County, Tennessee. It was built in 1980, so it is 45 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 140 vehicles a day, roughly 1% of them trucks, projected to reach 224 by 2042. The structure is 64 ft (19.4 m) long and 26 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesNfa A206
CrossesBranch
Location3.2 MI NW JCT I40&SR 141
RouteCounty Highway 206
Coordinates36.18485, -86.07751
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 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 rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length64 ft (19.4 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.9 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic224 by 2042
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 A206 over Branch built?

It was built in 1980, making it 45 years old in 2025.

What condition is Nfa A206 over 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 A206 over Branch carry?

About 140 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Nfa A206 over Branch?

The structure is 64 ft (19.4 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Nfa A206 over Branch?

It is owned by the County Highway Agency.