US Bridges

I40 over CSX Railroad

Fair

Shelby County, Tennessee · 2.5 MI W of I240 JCT · Structure no. 79I00400091

Built
1978
47 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
283 ft
5 main spans
Daily traffic
108,567
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over CSX Railroad is a prestressed concrete continuous stringer/multi-beam or girder carrying I40 over CSX Railroad in Shelby County, Tennessee. It was built in 1978, 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 283 ft (86.3 m) long and 138 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesI40
CrossesCSX Railroad
Location2.5 MI W of I240 JCT
RouteInterstate 40
CountyShelby County
StateTennessee
Coordinates35.18358, -89.91364
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.
Superstructure8 Very GoodNo problems noted.
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 rating64.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, precast panels
Main spans5
Design loadHS 20 + Mod
Structure length283 ft (86.3 m)
Longest span60 ft (18.3 m)
Deck width138 ft (42.1 m)
Roadway width135 ft (41.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic108,567 (2021)
Projected traffic173,707 by 2042
Trucks8%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over CSX Railroad built?

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

What condition is I40 over CSX Railroad 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 CSX Railroad carry?

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

How long is I40 over CSX Railroad?

The structure is 283 ft (86.3 m) long with a longest span of 60 ft (18.3 m) and a deck 138 ft wide.

Who owns I40 over CSX Railroad?

It is owned by the State Highway Agency.