US Bridges

Nfa 2079 (sa 8306) over Branch

Good

Sumner County, Tennessee · 3.7 MI NE JCT SR174&SR258 · Structure no. 83020790001

Built
1960
65 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
1,150
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2079 (sa 8306) over Branch is a concrete continuous culvert carrying Nfa 2079 (sa 8306) over Branch in Sumner County, Tennessee. It was built in 1960, so it is 65 years old, older 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 1,150 vehicles a day, roughly 3% of them trucks, projected to reach 1,312 by 2041. The structure is 34 ft (10.4 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesNfa 2079 (sa 8306)
CrossesBranch
Location3.7 MI NE JCT SR174&SR258
RouteCounty Highway 2079
CountySumner County
StateTennessee
Coordinates36.4088, -86.56913
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.9 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span17 ft (5.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,150 (2021)
Projected traffic1,312 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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 2079 (sa 8306) over Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is Nfa 2079 (sa 8306) 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 January 2025.

How much traffic does Nfa 2079 (sa 8306) over Branch carry?

About 1,150 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2079 (sa 8306) over Branch?

The structure is 34 ft (10.4 m) long with a longest span of 17 ft (5.2 m) and a deck 32 ft wide.

Who owns Nfa 2079 (sa 8306) over Branch?

It is owned by the County Highway Agency.