US Bridges

I40 over I40 / Gill Ave.

Good

Knox County, Tennessee · Downtown Knoxville · Structure no. 47I00400067

Built
2007
18 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
126 ft
1 main span
Daily traffic
89,950
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 / Gill Ave. is a prestressed concrete stringer/multi-beam or girder carrying I40 over I40 / Gill Ave. in Knox County, Tennessee. It was built in 2007, so it is 18 years old, younger than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 89,950 vehicles a day, roughly 6% of them trucks, projected to reach 160,960 by 2041. The structure is 126 ft (38.3 m) long and 163 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI40
CrossesI40 / Gill Ave.
LocationDowntown Knoxville
RouteInterstate 40
CountyKnox County
StateTennessee
Coordinates35.97903, -83.91805
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length126 ft (38.3 m)
Longest span122 ft (37.1 m)
Deck width163 ft (49.7 m)
Roadway width161 ft (49.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89,950 (2021)
Projected traffic160,960 by 2041
Trucks6%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I40 over I40 / Gill Ave. built?

It was built in 2007, making it 18 years old in 2025.

What condition is I40 over I40 / Gill Ave. in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2024.

How much traffic does I40 over I40 / Gill Ave. carry?

About 89,950 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over I40 / Gill Ave.?

The structure is 126 ft (38.3 m) long with a longest span of 122 ft (37.1 m) and a deck 163 ft wide.

Who owns I40 over I40 / Gill Ave.?

It is owned by the State Highway Agency.