US Bridges

FAS 8 over Overflow of Sequatchie R

Fair

Sequatchie County, Tennessee · .2 Mi.S.Of Dunlap · Structure no. 77SR0080003

Built
1950
75 years old, rebuilt 1995
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete
Length
342 ft
12 main spans
Daily traffic
1,697
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 8 over Overflow of Sequatchie R is a concrete tee beam carrying FAS 8 over Overflow of Sequatchie R in Sequatchie County, Tennessee. It was built in 1950 and reconstructed in 1995, so it is 75 years old, older 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 1,697 vehicles a day, roughly 5% of them trucks, projected to reach 2,520 by 2041. The structure is 342 ft (104.2 m) long and 34 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

CarriesFAS 8
CrossesOverflow of Sequatchie R
Location.2 Mi.S.Of Dunlap
RouteU.S. Route 127
Coordinates35.33073, -85.39011
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans12
Design loadHS 20
Structure length342 ft (104.2 m)
Longest span29 ft (8.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,697 (2021)
Projected traffic2,520 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.4 million (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 8 over Overflow of Sequatchie R built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1995.

What condition is FAS 8 over Overflow of Sequatchie R 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 November 2024.

How much traffic does FAS 8 over Overflow of Sequatchie R carry?

About 1,697 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 8 over Overflow of Sequatchie R?

The structure is 342 ft (104.2 m) long with a longest span of 29 ft (8.8 m) and a deck 34 ft wide.

Who owns FAS 8 over Overflow of Sequatchie R?

It is owned by the State Highway Agency.