US Bridges

I40 350248B over CSX Railroad

Fair

Davidson County, Tennessee · 1.2 M E JCT SR155&I40 · Structure no. 19I00400039

Built
1967
58 years old, rebuilt 2001
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
181 ft
3 main spans
Daily traffic
138,141
2021 count
Owner
State
State Highway Agency

About this bridge

I40 350248B over CSX Railroad is a steel continuous stringer/multi-beam or girder carrying I40 350248B over CSX Railroad in Davidson County, Tennessee. It was built in 1967 and reconstructed in 2001, so it is 58 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 138,141 vehicles a day, roughly 7% of them trucks, projected to reach 221,026 by 2042. The structure is 181 ft (55.2 m) long and 144 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesI40 350248B
CrossesCSX Railroad
Location1.2 M E JCT SR155&I40
RouteInterstate 40
CountyDavidson County
StateTennessee
Coordinates36.1539, -86.83659
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.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
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 rating66.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span62 ft (18.9 m)
Deck width144 ft (43.9 m)
Roadway width143 ft (43.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic138,141 (2021)
Projected traffic221,026 by 2042
Trucks7%
Lanes on structure9
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 350248B over CSX Railroad built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2001.

What condition is I40 350248B 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 2023.

How much traffic does I40 350248B over CSX Railroad carry?

About 138,141 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 350248B over CSX Railroad?

The structure is 181 ft (55.2 m) long with a longest span of 62 ft (18.9 m) and a deck 144 ft wide.

Who owns I40 350248B over CSX Railroad?

It is owned by the State Highway Agency.