US Bridges

I40 over SR 24

Poor

Cumberland County, Tennessee · Putnam-Cumberland Co.Ln. · Structure no. 18I00400001

Built
1963
62 years old, rebuilt 1980
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
304 ft
5 main spans
Daily traffic
36,293
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over SR 24 is a prestressed concrete stringer/multi-beam or girder carrying I40 over SR 24 in Cumberland County, Tennessee. It was built in 1963 and reconstructed in 1980, so it is 62 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 36,293 vehicles a day, roughly 7% of them trucks, projected to reach 47,994 by 2041. The structure is 304 ft (92.7 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesI40
CrossesSR 24
LocationPutnam-Cumberland Co.Ln.
RouteInterstate 40
CountyCumberland County
StateTennessee
Coordinates36.09979, -85.23631
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating16.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length304 ft (92.7 m)
Longest span74 ft (22.6 m)
Deck width44 ft (13.4 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,293 (2021)
Projected traffic47,994 by 2041
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over SR 24 built?

It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1980.

What condition is I40 over SR 24 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does I40 over SR 24 carry?

About 36,293 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 over SR 24?

The structure is 304 ft (92.7 m) long with a longest span of 74 ft (22.6 m) and a deck 44 ft wide.

Who owns I40 over SR 24?

It is owned by the State Highway Agency.