US Bridges

I 494 over Knox Ave (brt)

Good

Hennepin County, Minnesota · 0.18 MI W of JCT I35W · Structure no. 27415

Built
2021
4 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
48 ft
1 main span
Daily traffic
177,000
2020 count
Owner
Local
Other Local Agency

About this bridge

I 494 over Knox Ave (brt) is a concrete culvert carrying I 494 over Knox Ave (brt) in Hennepin County, Minnesota. It was built in 2021, so it is 4 years old, younger than the Minnesota average of 38.5 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 177,000 vehicles a day, roughly 4% of them trucks, projected to reach 180,000 by 2040. The structure is 48 ft (14.7 m) long and 355 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 494
CrossesKnox Ave (brt)
Location0.18 MI W of JCT I35W
RouteInterstate 494
CountyHennepin County
StateMinnesota
Coordinates44.86164, -93.30217
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
Culvert8 Very GoodNo problems noted.
Last inspectionJune 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 rating85 US tons
Inventory rating65.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length48 ft (14.7 m)
Longest span48 ft (14.7 m)
Deck width355 ft (108.1 m)
Roadway width182 ft (55.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic177,000 (2020)
Projected traffic180,000 by 2040
Trucks4%
Lanes on structure12
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

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 494 over Knox Ave (brt) built?

It was built in 2021, making it 4 years old in 2025.

What condition is I 494 over Knox Ave (brt) 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 June 2024.

How much traffic does I 494 over Knox Ave (brt) carry?

About 177,000 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is I 494 over Knox Ave (brt)?

The structure is 48 ft (14.7 m) long with a longest span of 48 ft (14.7 m) and a deck 355 ft wide.

Who owns I 494 over Knox Ave (brt)?

It is owned by the Other Local Agency.