US Bridges

Nfa 2140 (sa 8918) over Rocky River

Fair

Warren County, Tennessee · Warren Van Buren County · Structure no. 89021400001

Built
1969
56 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
303 ft
2 main spans
Daily traffic
340
2021 count
Owner
County
County Highway Agency

About this bridge

Nfa 2140 (sa 8918) over Rocky River is a steel continuous stringer/multi-beam or girder carrying Nfa 2140 (sa 8918) over Rocky River in Warren County, Tennessee. It was built in 1969, so it is 56 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 340 vehicles a day, roughly 3% of them trucks, projected to reach 544 by 2042. The structure is 303 ft (92.4 m) long and 34 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

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CarriesNfa 2140 (sa 8918)
CrossesRocky River
LocationWarren Van Buren County
RouteCounty Highway 2140
CountyWarren County
StateTennessee
Coordinates35.77424, -85.6082
Functional classRural Minor 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.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating27.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length303 ft (92.4 m)
Longest span150 ft (45.6 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2021)
Projected traffic544 by 2042
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 2140 (sa 8918) over Rocky River built?

It was built in 1969, making it 56 years old in 2025.

What condition is Nfa 2140 (sa 8918) over Rocky 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 2140 (sa 8918) over Rocky River carry?

About 340 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 2140 (sa 8918) over Rocky River?

The structure is 303 ft (92.4 m) long with a longest span of 150 ft (45.6 m) and a deck 34 ft wide.

Who owns Nfa 2140 (sa 8918) over Rocky River?

It is owned by the County Highway Agency.