US Bridges

Nfa A615 over SR 3

Fair

Obion County, Tennessee · 0.5 MI W of SR211 · Structure no. 66SR0030035

Built
1974
51 years old
Condition
Fair
inspected March 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
274 ft
4 main spans
Daily traffic
110
2020 count
Owner
State
State Highway Agency

About this bridge

Nfa A615 over SR 3 is a concrete continuous box beam or girders - multiple carrying Nfa A615 over SR 3 in Obion 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 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 110 vehicles a day, roughly 4% of them trucks, projected to reach 176 by 2041. The structure is 274 ft (83.5 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesNfa A615
CrossesSR 3
Location0.5 MI W of SR211
RouteCounty Highway 615
CountyObion County
StateTennessee
Coordinates36.30078, -89.19442
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.
Last inspectionMarch 2023
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 rating40.7 US tons
Inventory rating23.9 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length274 ft (83.5 m)
Longest span96 ft (29.3 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2020)
Projected traffic176 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.7 mi (14 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 A615 over SR 3 built?

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

What condition is Nfa A615 over SR 3 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 2023.

How much traffic does Nfa A615 over SR 3 carry?

About 110 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Nfa A615 over SR 3?

The structure is 274 ft (83.5 m) long with a longest span of 96 ft (29.3 m) and a deck 32 ft wide.

Who owns Nfa A615 over SR 3?

It is owned by the State Highway Agency.