US Bridges

Nfa 1593 (sa 2723) over South Fork Obion River

Fair

Gibson County, Tennessee · 3.3 MI NW JCT SR43&SRU05 · Structure no. 27015930013

Built
1988
37 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
153 ft
3 main spans
Daily traffic
242
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 1593 (sa 2723) over South Fork Obion River is a steel continuous stringer/multi-beam or girder carrying Nfa 1593 (sa 2723) over South Fork Obion River in Gibson County, Tennessee. It was built in 1988, so it is 37 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 242 vehicles a day, roughly 3% of them trucks, projected to reach 387 by 2042. The structure is 153 ft (46.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesNfa 1593 (sa 2723)
CrossesSouth Fork Obion River
Location3.3 MI NW JCT SR43&SRU05
RouteCounty Highway 1593
CountyGibson County
StateTennessee
Coordinates36.12819, -88.84972
Functional classRural Minor Collector

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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span56 ft (17.1 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic242 (2021)
Projected traffic387 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$332,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 1593 (sa 2723) over South Fork Obion River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Nfa 1593 (sa 2723) over South 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 July 2023.

How much traffic does Nfa 1593 (sa 2723) over South Fork Obion River carry?

About 242 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 1593 (sa 2723) over South Fork Obion River?

The structure is 153 ft (46.6 m) long with a longest span of 56 ft (17.1 m) and a deck 25 ft wide.

Who owns Nfa 1593 (sa 2723) over South Fork Obion River?

It is owned by the County Highway Agency.