US Bridges

FAS 143 over Doe River

Fair

Carter County, Tennessee · In Roan Mt · Structure no. 10SR1430005

Built
1967
58 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
5 main spans
Daily traffic
2,764
2021 count
Owner
State
State Highway Agency

About this bridge

FAS 143 over Doe River is a prestressed concrete stringer/multi-beam or girder carrying FAS 143 over Doe River in Carter County, Tennessee. It was built in 1967, so it is 58 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 2,764 vehicles a day, roughly 5% of them trucks, projected to reach 3,723 by 2041. The structure is 200 ft (60.9 m) long and 35 ft wide. If it were closed, the detour would be 75.8 mi (122 km).

Location

Open in Google Maps
CarriesFAS 143
CrossesDoe River
LocationIn Roan Mt
RouteState Highway 143
CountyCarter County
StateTennessee
Coordinates36.19825, -82.0732
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length200 ft (60.9 m)
Longest span40 ft (12.3 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,764 (2021)
Projected traffic3,723 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed75.8 mi (122 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$491,000 (2021 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 143 over Doe River built?

It was built in 1967, making it 58 years old in 2025.

What condition is FAS 143 over Doe 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 May 2023.

How much traffic does FAS 143 over Doe River carry?

About 2,764 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is FAS 143 over Doe River?

The structure is 200 ft (60.9 m) long with a longest span of 40 ft (12.3 m) and a deck 35 ft wide.

Who owns FAS 143 over Doe River?

It is owned by the State Highway Agency.