US Bridges

Nfa A311 over Caney Fork River

Fair

White County, Tennessee · 6MI West of SR111 · Structure no. 930A3110001

Built
1974
51 years old
Condition
Fair
inspected March 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
538 ft
2 main spans
Daily traffic
110
2020 count
Owner
County
County Highway Agency

About this bridge

Nfa A311 over Caney Fork River is a steel continuous girder and floorbeam system carrying Nfa A311 over Caney Fork River in White County, Tennessee. It was built in 1974, so it is 51 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 5 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 176 by 2042. The structure is 538 ft (164 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesNfa A311
CrossesCaney Fork River
Location6MI West of SR111
RouteCounty Highway 311
CountyWhite County
StateTennessee
Coordinates35.79702, -85.54025
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length538 ft (164 m)
Longest span266 ft (81.1 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 A311 over Caney Fork River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Nfa A311 over Caney Fork River 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 March 2024.

How much traffic does Nfa A311 over Caney Fork River carry?

About 110 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A311 over Caney Fork River?

The structure is 538 ft (164 m) long with a longest span of 266 ft (81.1 m) and a deck 31 ft wide.

Who owns Nfa A311 over Caney Fork River?

It is owned by the County Highway Agency.