US Bridges

I40 over I40 / CO RD

Fair

Williamson County, Tennessee · .7 M SW JCT I40&SR96 · Structure no. 94I00400002

Built
1960
65 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
125 ft
3 main spans
Daily traffic
34,028
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 / CO RD is a prestressed concrete stringer/multi-beam or girder carrying I40 over I40 / CO RD in Williamson 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 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 34,028 vehicles a day, roughly 7% of them trucks, projected to reach 45,637 by 2041. The structure is 125 ft (38.1 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI40
CrossesI40 / CO RD
Location.7 M SW JCT I40&SR96
RouteInterstate 40
CountyWilliamson County
StateTennessee
Coordinates36.02387, -87.18775
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating78.3 US tons
Inventory rating46.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length125 ft (38.1 m)
Longest span43 ft (13.1 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,028 (2021)
Projected traffic45,637 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I40 / CO RD built?

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

What condition is I40 over I40 / CO RD 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 December 2024.

How much traffic does I40 over I40 / CO RD carry?

About 34,028 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over I40 / CO RD?

The structure is 125 ft (38.1 m) long with a longest span of 43 ft (13.1 m) and a deck 42 ft wide.

Who owns I40 over I40 / CO RD?

It is owned by the State Highway Agency.