US Bridges

Nfa A316 over Unnamed Branch

Fair

Bedford County, Tennessee · 11 M. Sw. Shelbyville. · Structure no. 020A3160001

Built
1975
50 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
2 main spans
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A316 over Unnamed Branch is a steel stringer/multi-beam or girder carrying Nfa A316 over Unnamed Branch in Bedford County, Tennessee. It was built in 1975, so it is 50 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 50 vehicles a day, roughly 2% of them trucks, projected to reach 80 by 2041. The structure is 24 ft (7.2 m) long and 22 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesNfa A316
CrossesUnnamed Branch
Location11 M. Sw. Shelbyville.
RouteCounty Highway 316
CountyBedford County
StateTennessee
Coordinates35.41326, -86.63055
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating28.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length24 ft (7.2 m)
Longest span11 ft (3.4 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic80 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 A316 over Unnamed Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Nfa A316 over Unnamed Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does Nfa A316 over Unnamed Branch carry?

About 50 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A316 over Unnamed Branch?

The structure is 24 ft (7.2 m) long with a longest span of 11 ft (3.4 m) and a deck 22 ft wide.

Who owns Nfa A316 over Unnamed Branch?

It is owned by the County Highway Agency.