US Bridges

I40 over SR 136

Fair

Putnam County, Tennessee · 1.1 MI W of SR111 · Structure no. 71I00400029

Built
1960
65 years old, rebuilt 1990
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
198 ft
4 main spans
Daily traffic
56,102
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over SR 136 is a prestressed concrete box beam or girders - multiple carrying I40 over SR 136 in Putnam County, Tennessee. It was built in 1960 and reconstructed in 1990, 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 56,102 vehicles a day, roughly 7% of them trucks, projected to reach 89,763 by 2042. The structure is 198 ft (60.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40
CrossesSR 136
Location1.1 MI W of SR111
RouteInterstate 40
CountyPutnam County
StateTennessee
Coordinates36.13525, -85.50325
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length198 ft (60.4 m)
Longest span53 ft (16.2 m)
Deck width44 ft (13.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56,102 (2021)
Projected traffic89,763 by 2042
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 SR 136 built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1990.

What condition is I40 over SR 136 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 May 2024.

How much traffic does I40 over SR 136 carry?

About 56,102 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over SR 136?

The structure is 198 ft (60.4 m) long with a longest span of 53 ft (16.2 m) and a deck 44 ft wide.

Who owns I40 over SR 136?

It is owned by the State Highway Agency.