US Bridges

FAP 43 over Middle Fork Obion River

Fair

Weakley County, Tennessee · 1 Mi.South of Sharon · Structure no. 92SR0430005

Built
1995
30 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
890 ft
12 main spans
Daily traffic
7,344
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 43 over Middle Fork Obion River is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 43 over Middle Fork Obion River in Weakley County, Tennessee. It was built in 1995, so it is 30 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 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 7,344 vehicles a day, roughly 10% of them trucks, projected to reach 11,750 by 2042. The structure is 890 ft (271.3 m) long and 90 ft wide. If it were closed, the detour would be 26.1 mi (42 km).

CarriesFAP 43
CrossesMiddle Fork Obion River
Location1 Mi.South of Sharon
RouteU.S. Route 45
Coordinates36.20314, -88.82139
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans12
Design loadH 20
Structure length890 ft (271.3 m)
Longest span75 ft (22.9 m)
Deck width90 ft (27.4 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,344 (2021)
Projected traffic11,750 by 2042
Trucks10%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$15.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAP 43 over Middle Fork Obion River built?

It was built in 1995, making it 30 years old in 2025.

What condition is FAP 43 over Middle Fork 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 August 2024.

How much traffic does FAP 43 over Middle Fork Obion River carry?

About 7,344 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 43 over Middle Fork Obion River?

The structure is 890 ft (271.3 m) long with a longest span of 75 ft (22.9 m) and a deck 90 ft wide.

Who owns FAP 43 over Middle Fork Obion River?

It is owned by the State Highway Agency.