US Bridges

FAS 8 over Sequatchie River

Fair

Sequatchie County, Tennessee · .3 Mi.S.Of Dunlap · Structure no. 77SR0080005

Built
1950
75 years old, rebuilt 1995
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
290 ft
3 main spans
Daily traffic
1,697
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 8 over Sequatchie River is a steel continuous stringer/multi-beam or girder carrying FAS 8 over Sequatchie River 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 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 1,697 vehicles a day, roughly 5% of them trucks, projected to reach 2,715 by 2042. The structure is 290 ft (88.4 m) long and 34 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

Open in Google Maps
CarriesFAS 8
CrossesSequatchie River
Location.3 Mi.S.Of Dunlap
RouteU.S. Route 127
CountySequatchie County
StateTennessee
Coordinates35.33225, -85.39302
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
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 rating41.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+3 approach)
Design loadH 20
Structure length290 ft (88.4 m)
Longest span80 ft (24.4 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,697 (2021)
Projected traffic2,715 by 2042
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 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 8 over Sequatchie River built?

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

What condition is FAS 8 over Sequatchie 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 November 2024.

How much traffic does FAS 8 over Sequatchie River carry?

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

How long is FAS 8 over Sequatchie River?

The structure is 290 ft (88.4 m) long with a longest span of 80 ft (24.4 m) and a deck 34 ft wide.

Who owns FAS 8 over Sequatchie River?

It is owned by the State Highway Agency.