US Bridges

I40 348623Y over Nasville & Eastern RR

Fair

Davidson County, Tennessee · .5 M SE JCT I65&I40 · Structure no. 19I00400097

Built
1960
65 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
3 main spans
Daily traffic
181,397
2021 count
Owner
State
State Highway Agency

About this bridge

I40 348623Y over Nasville & Eastern RR is a prestressed concrete stringer/multi-beam or girder carrying I40 348623Y over Nasville & Eastern RR in Davidson County, Tennessee. It was built in 1960, 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 181,397 vehicles a day, roughly 7% of them trucks, projected to reach 290,235 by 2042. The structure is 123 ft (37.5 m) long and 118 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40 348623Y
CrossesNasville & Eastern RR
Location.5 M SE JCT I65&I40
RouteInterstate 40
CountyDavidson County
StateTennessee
Coordinates36.15112, -86.75098
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span40 ft (12.2 m)
Deck width118 ft (36.1 m)
Roadway width114 ft (34.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic181,397 (2021)
Projected traffic290,235 by 2042
Trucks7%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.8 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 348623Y over Nasville & Eastern RR built?

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

What condition is I40 348623Y over Nasville & Eastern RR 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 December 2023.

How much traffic does I40 348623Y over Nasville & Eastern RR carry?

About 181,397 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is I40 348623Y over Nasville & Eastern RR?

The structure is 123 ft (37.5 m) long with a longest span of 40 ft (12.2 m) and a deck 118 ft wide.

Who owns I40 348623Y over Nasville & Eastern RR?

It is owned by the State Highway Agency.