US Bridges

FAP 43 over North Fork Obion River

Good

Weakley County, Tennessee · 2.4 Mi.N.Of Martin · Structure no. 92SR0430019

Built
1999
26 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
418 ft
7 main spans
Daily traffic
6,871
2021 count
Owner
State
State Highway Agency

About this bridge

FAP 43 over North Fork Obion River is a prestressed concrete continuous stringer/multi-beam or girder carrying FAP 43 over North Fork Obion River in Weakley County, Tennessee. It was built in 1999, so it is 26 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,871 vehicles a day, roughly 10% of them trucks, projected to reach 10,381 by 2042. The structure is 418 ft (127.4 m) long and 44 ft wide. If it were closed, the detour would be 37.3 mi (60 km).

CarriesFAP 43
CrossesNorth Fork Obion River
Location2.4 Mi.N.Of Martin
RouteU.S. Route 45
Coordinates36.40453, -88.85464
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length418 ft (127.4 m)
Longest span60 ft (18.4 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,871 (2021)
Projected traffic10,381 by 2042
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed37.3 mi (60 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 43 over North Fork Obion River built?

It was built in 1999, making it 26 years old in 2025.

What condition is FAP 43 over North Fork Obion River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

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

About 6,871 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is FAP 43 over North Fork Obion River?

The structure is 418 ft (127.4 m) long with a longest span of 60 ft (18.4 m) and a deck 44 ft wide.

Who owns FAP 43 over North Fork Obion River?

It is owned by the State Highway Agency.