US Bridges

Nfa A616 over I75

Fair

Monroe County, Tennessee · N of Sweetwater · Structure no. 62I00750007

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
455 ft
3 main spans
Daily traffic
130
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A616 over I75 is a steel continuous stringer/multi-beam or girder carrying Nfa A616 over I75 in Monroe County, Tennessee. It was built in 1971, so it is 54 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 130 vehicles a day, roughly 2% of them trucks, projected to reach 208 by 2042. The structure is 455 ft (138.7 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNfa A616
CrossesI75
LocationN of Sweetwater
RouteCounty Highway 616
Coordinates35.637, -84.47569
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating27.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length455 ft (138.7 m)
Longest span148 ft (45.1 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2020)
Projected traffic208 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 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 A616 over I75 built?

It was built in 1971, making it 54 years old in 2025.

What condition is Nfa A616 over I75 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 2024.

How much traffic does Nfa A616 over I75 carry?

About 130 vehicles per day (2020 count), of which roughly 2% are trucks.

How long is Nfa A616 over I75?

The structure is 455 ft (138.7 m) long with a longest span of 148 ft (45.1 m) and a deck 32 ft wide.

Who owns Nfa A616 over I75?

It is owned by the State Highway Agency.