US Bridges

Nfa A314 over Branch

Good

Macon County, Tennessee · 1 M N of Redboilingspring · Structure no. 560A3140001

Built
2013
12 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
27 ft
1 main span
Daily traffic
230
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A314 over Branch is a concrete culvert carrying Nfa A314 over Branch in Macon County, Tennessee. It was built in 2013, so it is 12 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 230 vehicles a day, roughly 5% of them trucks, projected to reach 368 by 2041. The structure is 27 ft (8.3 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesNfa A314
CrossesBranch
Location1 M N of Redboilingspring
RouteCounty Highway 314
CountyMacon County
StateTennessee
Coordinates36.54692, -85.85033
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 inspectionSeptember 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 rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length27 ft (8.3 m)
Longest span27 ft (8.3 m)
Deck width38 ft (11.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic230 (2020)
Projected traffic368 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 A314 over Branch built?

It was built in 2013, making it 12 years old in 2025.

What condition is Nfa A314 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 September 2023.

How much traffic does Nfa A314 over Branch carry?

About 230 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Nfa A314 over Branch?

The structure is 27 ft (8.3 m) long with a longest span of 27 ft (8.3 m) and a deck 38 ft wide.

Who owns Nfa A314 over Branch?

It is owned by the County Highway Agency.