US Bridges

I40 Lf LN over SR 58

Fair

Roane County, Tennessee · 1.3 M NE JCT SR1&SR326 · Structure no. 73I00400024

Built
1969
56 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Concrete Continuous
Length
167 ft
4 main spans
Daily traffic
51,799
2021 count
Owner
State
State Highway Agency

About this bridge

I40 Lf LN over SR 58 is a concrete continuous tee beam carrying I40 Lf LN over SR 58 in Roane County, Tennessee. It was built in 1969, so it is 56 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 51,799 vehicles a day, roughly 6% of them trucks, projected to reach 75,688 by 2041. The structure is 167 ft (50.9 m) long and 47 ft wide.

Location

Open in Google Maps
CarriesI40 Lf LN
CrossesSR 58
Location1.3 M NE JCT SR1&SR326
RouteInterstate 40
CountyRoane County
StateTennessee
Coordinates35.8715, -84.44405
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length167 ft (50.9 m)
Longest span43 ft (13.1 m)
Deck width47 ft (14.2 m)
Roadway width42 ft (12.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51,799 (2021)
Projected traffic75,688 by 2041
Trucks6%
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$323,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 Lf LN over SR 58 built?

It was built in 1969, making it 56 years old in 2025.

What condition is I40 Lf LN over SR 58 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 September 2024.

How much traffic does I40 Lf LN over SR 58 carry?

About 51,799 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 Lf LN over SR 58?

The structure is 167 ft (50.9 m) long with a longest span of 43 ft (13.1 m) and a deck 47 ft wide.

Who owns I40 Lf LN over SR 58?

It is owned by the State Highway Agency.