US Bridges

Nfa 2374 (sa 7317) over Clinch River

FairPosted for load

Roane County, Tennessee · Old Kingston Ferry Locat. · Structure no. 73023740005

Built
1987
38 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
786 ft
4 main spans
Daily traffic
2,717
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2374 (sa 7317) over Clinch River is a steel continuous stringer/multi-beam or girder carrying Nfa 2374 (sa 7317) over Clinch River in Roane 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 2,717 vehicles a day, roughly 2% of them trucks, projected to reach 4,347 by 2042. The structure is 786 ft (239.6 m) long and 32 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesNfa 2374 (sa 7317)
CrossesClinch River
LocationOld Kingston Ferry Locat.
RouteCounty Highway 2374
CountyRoane County
StateTennessee
Coordinates35.88413, -84.48997
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.2 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length786 ft (239.6 m)
Longest span300 ft (91.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,717 (2021)
Projected traffic4,347 by 2042
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$12.1 million (2022 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Nfa 2374 (sa 7317) over Clinch River built?

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

What condition is Nfa 2374 (sa 7317) over Clinch 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 March 2023.

How much traffic does Nfa 2374 (sa 7317) over Clinch River carry?

About 2,717 vehicles per day (2021 count), of which roughly 2% are trucks.

How long is Nfa 2374 (sa 7317) over Clinch River?

The structure is 786 ft (239.6 m) long with a longest span of 300 ft (91.4 m) and a deck 32 ft wide.

Who owns Nfa 2374 (sa 7317) over Clinch River?

It is owned by the County Highway Agency.