US Bridges

FAS 85 over East Fork Obey River

PoorPosted for load

Fentress County, Tennessee · 5.4 Mi.W.Of SR028 · Structure no. 25SR0850003

Built
1989
36 years old
Condition
Poor
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
372 ft
5 main spans
Daily traffic
1,981
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 85 over East Fork Obey River is a prestressed concrete continuous box beam or girders - single or spread carrying FAS 85 over East Fork Obey River in Fentress County, Tennessee. It was built in 1989, so it is 36 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,981 vehicles a day, roughly 5% of them trucks, projected to reach 3,170 by 2042. The structure is 372 ft (113.4 m) long and 30 ft wide. If it were closed, the detour would be 49.7 mi (80 km).

CarriesFAS 85
CrossesEast Fork Obey River
Location5.4 Mi.W.Of SR028
RouteState Highway 85
Coordinates36.27218, -85.0454
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.7 US tons
Inventory rating24.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length372 ft (113.4 m)
Longest span87 ft (26.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,981 (2021)
Projected traffic3,170 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.7 mi (80 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 85 over East Fork Obey River built?

It was built in 1989, making it 36 years old in 2025.

What condition is FAS 85 over East Fork Obey River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does FAS 85 over East Fork Obey River carry?

About 1,981 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 85 over East Fork Obey River?

The structure is 372 ft (113.4 m) long with a longest span of 87 ft (26.5 m) and a deck 30 ft wide.

Who owns FAS 85 over East Fork Obey River?

It is owned by the State Highway Agency.