US Bridges

I 35 over Midway River

Good

Carlton County, Minnesota · 9.3 MI SW of W JCT TH 2 · Structure no. 09828

Built
1971
54 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
175 ft
3 main spans
Daily traffic
14,250
2016 count
Owner
State
State Highway Agency

About this bridge

I 35 over Midway River is a prestressed concrete stringer/multi-beam or girder carrying I 35 over Midway River in Carlton County, Minnesota. It was built in 1971, so it is 54 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,250 vehicles a day, roughly 10% of them trucks, projected to reach 14,250 by 2036. The structure is 175 ft (53.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 35
CrossesMidway River
Location9.3 MI SW of W JCT TH 2
RouteInterstate 35
Coordinates46.69771, -92.37678
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating30.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span57 ft (17.3 m)
Deck width44 ft (13.5 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,250 (2016)
Projected traffic14,250 by 2036
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 35 over Midway River built?

It was built in 1971, making it 54 years old in 2025.

What condition is I 35 over Midway River 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 September 2024.

How much traffic does I 35 over Midway River carry?

About 14,250 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is I 35 over Midway River?

The structure is 175 ft (53.3 m) long with a longest span of 57 ft (17.3 m) and a deck 44 ft wide.

Who owns I 35 over Midway River?

It is owned by the State Highway Agency.