US Bridges

I40 over I40 / Weisgarber Rd.

Good

Knox County, Tennessee · 3.5 M S of SR1 · Structure no. 47I00400029

Built
2005
20 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
202 ft
3 main spans
Daily traffic
179,856
2021 count
Owner
State
State Highway Agency

About this bridge

I40 over I40 / Weisgarber Rd. is a steel continuous stringer/multi-beam or girder carrying I40 over I40 / Weisgarber Rd. in Knox County, Tennessee. It was built in 2005, so it is 20 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 179,856 vehicles a day, roughly 6% of them trucks, projected to reach 338,384 by 2041. The structure is 202 ft (61.7 m) long and 156 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesI40
CrossesI40 / Weisgarber Rd.
Location3.5 M S of SR1
RouteInterstate 40
CountyKnox County
StateTennessee
Coordinates35.93775, -84.00937
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 inspectionOctober 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 rating68.5 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 length202 ft (61.7 m)
Longest span119 ft (36.2 m)
Deck width156 ft (47.5 m)
Roadway width153 ft (46.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179,856 (2021)
Projected traffic338,384 by 2041
Trucks6%
Lanes on structure9
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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 / Weisgarber Rd. built?

It was built in 2005, making it 20 years old in 2025.

What condition is I40 over I40 / Weisgarber Rd. 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 October 2024.

How much traffic does I40 over I40 / Weisgarber Rd. carry?

About 179,856 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is I40 over I40 / Weisgarber Rd.?

The structure is 202 ft (61.7 m) long with a longest span of 119 ft (36.2 m) and a deck 156 ft wide.

Who owns I40 over I40 / Weisgarber Rd.?

It is owned by the State Highway Agency.