US Bridges

Nfa 2374 (sa 7317) over Branch

Good

Roane County, Tennessee · 2.4 M NE of Kingston Exit · Structure no. 73023740003

Built
1945
80 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
2,717
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2374 (sa 7317) over Branch is a concrete continuous culvert carrying Nfa 2374 (sa 7317) over Branch in Roane County, Tennessee. It was built in 1945, so it is 80 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,717 vehicles a day, roughly 2% of them trucks, projected to reach 4,682 by 2041. The structure is 21 ft (6.4 m) long and 29 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

Location

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CarriesNfa 2374 (sa 7317)
CrossesBranch
Location2.4 M NE of Kingston Exit
RouteCounty Highway 2374
CountyRoane County
StateTennessee
Coordinates35.90565, -84.4769
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42.5 US tons
Inventory rating24.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,717 (2021)
Projected traffic4,682 by 2041
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 2374 (sa 7317) over Branch built?

It was built in 1945, making it 80 years old in 2025.

What condition is Nfa 2374 (sa 7317) over Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

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

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

How long is Nfa 2374 (sa 7317) over Branch?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 29 ft wide.

Who owns Nfa 2374 (sa 7317) over Branch?

It is owned by the County Highway Agency.