US Bridges

I840 over West Fork Stones River

Fair

Rutherford County, Tennessee · 4.8 MI SW JCT SR10&SR266 · Structure no. 75SR8400031

Built
1995
30 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
682 ft
5 main spans
Daily traffic
40,188
2021 count
Owner
State
State Highway Agency

About this bridge

I840 over West Fork Stones River is a prestressed concrete continuous stringer/multi-beam or girder carrying I840 over West Fork Stones River in Rutherford County, Tennessee. It was built in 1995, so it is 30 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 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 40,188 vehicles a day, roughly 7% of them trucks, projected to reach 57,504 by 2041. The structure is 682 ft (207.9 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesI840
CrossesWest Fork Stones River
Location4.8 MI SW JCT SR10&SR266
RouteInterstate I0840
Coordinates35.91065, -86.4422
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length682 ft (207.9 m)
Longest span137 ft (41.8 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40,188 (2021)
Projected traffic57,504 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I840 over West Fork Stones River built?

It was built in 1995, making it 30 years old in 2025.

What condition is I840 over West Fork Stones 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 October 2024.

How much traffic does I840 over West Fork Stones River carry?

About 40,188 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I840 over West Fork Stones River?

The structure is 682 ft (207.9 m) long with a longest span of 137 ft (41.8 m) and a deck 44 ft wide.

Who owns I840 over West Fork Stones River?

It is owned by the State Highway Agency.