US Bridges

I40 over I-40 / SR-204

Fair

Shelby County, Tennessee · I-40 / SR 204 Jct. · Structure no. 79I00400093

Built
1978
47 years old, rebuilt 2016
Condition
Fair
inspected November 2024
Type
Box Beam or Girders - Single or Spread
Concrete
Length
134 ft
1 main span
Daily traffic
108,567
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I-40 / SR-204 is a concrete box beam or girders - single or spread carrying I40 over I-40 / SR-204 in Shelby County, Tennessee. It was built in 1978 and reconstructed in 2016, so it is 47 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 108,567 vehicles a day, roughly 8% of them trucks, projected to reach 173,707 by 2042. The structure is 134 ft (40.8 m) long and 162 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI40
CrossesI-40 / SR-204
LocationI-40 / SR 204 Jct.
RouteInterstate 40
CountyShelby County
StateTennessee
Coordinates35.16908, -89.90266
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45.7 US tons
Inventory rating32.8 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length134 ft (40.8 m)
Longest span134 ft (40.8 m)
Deck width162 ft (49.3 m)
Roadway width160 ft (48.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108,567 (2021)
Projected traffic173,707 by 2042
Trucks8%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$304,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I-40 / SR-204 built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2016.

What condition is I40 over I-40 / SR-204 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 November 2024.

How much traffic does I40 over I-40 / SR-204 carry?

About 108,567 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is I40 over I-40 / SR-204?

The structure is 134 ft (40.8 m) long with a longest span of 134 ft (40.8 m) and a deck 162 ft wide.

Who owns I40 over I-40 / SR-204?

It is owned by the State Highway Agency.