US Bridges

FAS 140 over Middle Fork Obion River

Fair

Henry County, Tennessee · 1.3 Mile South of Como · Structure no. 40S80920015

Built
1987
38 years old
Condition
Fair
inspected September 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
111 ft
3 main spans
Daily traffic
619
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 140 over Middle Fork Obion River is a prestressed concrete box beam or girders - multiple carrying FAS 140 over Middle Fork Obion River in Henry County, Tennessee. It was built in 1987, so it is 38 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 619 vehicles a day, roughly 3% of them trucks, projected to reach 990 by 2042. The structure is 111 ft (33.8 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFAS 140
CrossesMiddle Fork Obion River
Location1.3 Mile South of Como
RouteState Highway 140
Coordinates36.27114, -88.50953
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating61.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length111 ft (33.8 m)
Longest span37 ft (11.3 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic619 (2021)
Projected traffic990 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 140 over Middle Fork Obion River built?

It was built in 1987, making it 38 years old in 2025.

What condition is FAS 140 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 September 2023.

How much traffic does FAS 140 over Middle Fork Obion River carry?

About 619 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is FAS 140 over Middle Fork Obion River?

The structure is 111 ft (33.8 m) long with a longest span of 37 ft (11.3 m) and a deck 26 ft wide.

Who owns FAS 140 over Middle Fork Obion River?

It is owned by the State Highway Agency.