US Bridges

FAP 3 over Obion River

Fair

Obion County, Tennessee · 2.5 MI N of Dyer County · Structure no. 66SR0030029

Built
1978
47 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
381 ft
5 main spans
Daily traffic
11,306
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 3 over Obion River is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 3 over Obion River in Obion County, Tennessee. It was built in 1978, so it is 47 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 11,306 vehicles a day, roughly 10% of them trucks, projected to reach 15,456 by 2041. The structure is 381 ft (116.1 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAP 3
CrossesObion River
Location2.5 MI N of Dyer County
RouteU.S. Route 51
CountyObion County
StateTennessee
Coordinates36.23989, -89.21692
Functional classRural Principal Arterial - Other

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length381 ft (116.1 m)
Longest span77 ft (23.5 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,306 (2021)
Projected traffic15,456 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 3 over Obion River built?

It was built in 1978, making it 47 years old in 2025.

What condition is FAP 3 over Obion 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 2023.

How much traffic does FAP 3 over Obion River carry?

About 11,306 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 3 over Obion River?

The structure is 381 ft (116.1 m) long with a longest span of 77 ft (23.5 m) and a deck 44 ft wide.

Who owns FAP 3 over Obion River?

It is owned by the State Highway Agency.