US Bridges

I40 over So. Fork Forked Deer Riv

Fair

Madison County, Tennessee · 1 MI W of SR20 · Structure no. 57I00400019

Built
1960
65 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
425 ft
1 main span
Daily traffic
49,487
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over So. Fork Forked Deer Riv is a prestressed concrete stringer/multi-beam or girder carrying I40 over So. Fork Forked Deer Riv in Madison County, Tennessee. It was built in 1960, so it is 65 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 49,487 vehicles a day, roughly 8% of them trucks, projected to reach 79,179 by 2042. The structure is 425 ft (129.5 m) long and 44 ft wide. If it were closed, the detour would be 36 mi (58 km).

Location

Open in Google Maps
CarriesI40
CrossesSo. Fork Forked Deer Riv
Location1 MI W of SR20
RouteInterstate 40
CountyMadison County
StateTennessee
Coordinates35.6505, -88.88989
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+12 approach)
Design loadHS 20
Structure length425 ft (129.5 m)
Longest span83 ft (25.3 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic49,487 (2021)
Projected traffic79,179 by 2042
Trucks8%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 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 statusHistorical significance not determinable at this time
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$575,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I40 over So. Fork Forked Deer Riv built?

It was built in 1960, making it 65 years old in 2025.

What condition is I40 over So. Fork Forked Deer Riv 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 April 2023.

How much traffic does I40 over So. Fork Forked Deer Riv carry?

About 49,487 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I40 over So. Fork Forked Deer Riv?

The structure is 425 ft (129.5 m) long with a longest span of 83 ft (25.3 m) and a deck 44 ft wide.

Who owns I40 over So. Fork Forked Deer Riv?

It is owned by the State Highway Agency.