US Bridges

Con 6478 over I 394 I 394R

Fair

Hennepin County, Minnesota · At the JCT TH 100; 394 · Structure no. 27752A

Built
1989
36 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
324 ft
2 main spans
Daily traffic
5,000
1994 count
Owner
State
State Highway Agency

About this bridge

Con 6478 over I 394 I 394R is a steel continuous stringer/multi-beam or girder carrying Con 6478 over I 394 I 394R in Hennepin County, Minnesota. It was built in 1989, so it is 36 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 5,000 vehicles a day, projected to reach 5,000 by 2029. The structure is 324 ft (98.8 m) long and 45 ft wide.

CarriesCon 6478
CrossesI 394 I 394R
LocationAt the JCT TH 100; 394
RouteState Highway 6478
Coordinates44.97019, -93.34131
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating41.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length324 ft (98.8 m)
Longest span162 ft (49.5 m)
Deck width45 ft (13.6 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (1994)
Projected traffic5,000 by 2029
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Con 6478 over I 394 I 394R built?

It was built in 1989, making it 36 years old in 2025.

What condition is Con 6478 over I 394 I 394R 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 Con 6478 over I 394 I 394R carry?

About 5,000 vehicles per day (1994 count).

How long is Con 6478 over I 394 I 394R?

The structure is 324 ft (98.8 m) long with a longest span of 162 ft (49.5 m) and a deck 45 ft wide.

Who owns Con 6478 over I 394 I 394R?

It is owned by the State Highway Agency.