US Bridges

Nfa A050 over SR 311

Fair

Bradley County, Tennessee · 1/2 Mi. East OFI-75 · Structure no. 06SR3110001

Built
2017
8 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
263 ft
2 main spans
Daily traffic
260
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A050 over SR 311 is a prestressed concrete continuous stringer/multi-beam or girder carrying Nfa A050 over SR 311 in Bradley County, Tennessee. It was built in 2017, so it is 8 years old, younger 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 260 vehicles a day, roughly 2% of them trucks, projected to reach 416 by 2042. The structure is 263 ft (80.2 m) long and 97 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNfa A050
CrossesSR 311
Location1/2 Mi. East OFI-75
RouteCounty Highway 50
CountyBradley County
StateTennessee
Coordinates35.14848, -84.93735
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length263 ft (80.2 m)
Longest span132 ft (40.1 m)
Deck width97 ft (29.7 m)
Roadway width96 ft (29.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2020)
Projected traffic416 by 2042
Trucks2%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nfa A050 over SR 311 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Nfa A050 over SR 311 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 August 2023.

How much traffic does Nfa A050 over SR 311 carry?

About 260 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A050 over SR 311?

The structure is 263 ft (80.2 m) long with a longest span of 132 ft (40.1 m) and a deck 97 ft wide.

Who owns Nfa A050 over SR 311?

It is owned by the State Highway Agency.