US Bridges

T 370 over Midway River

Good

Carlton County, Minnesota · 1.7 MI S of JCT Csah 61 · Structure no. 09512

Built
1985
40 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
97 ft
1 main span
Daily traffic
38
1985 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 370 over Midway River is a prestressed concrete stringer/multi-beam or girder carrying T 370 over Midway River in Carlton County, Minnesota. It was built in 1985, so it is 40 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 38 vehicles a day, projected to reach 38 by 2029. The structure is 97 ft (29.7 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesT 370
CrossesMidway River
Location1.7 MI S of JCT Csah 61
RouteCounty Highway 370
Coordinates46.68239, -92.38577
Functional classUrban Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 alignment6: Equal to present minimum criteria
Operating rating72.6 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length97 ft (29.7 m)
Longest span95 ft (28.9 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38 (1985)
Projected traffic38 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 370 over Midway River built?

It was built in 1985, making it 40 years old in 2025.

What condition is T 370 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 October 2024.

How much traffic does T 370 over Midway River carry?

About 38 vehicles per day (1985 count).

How long is T 370 over Midway River?

The structure is 97 ft (29.7 m) long with a longest span of 95 ft (28.9 m) and a deck 31 ft wide.

Who owns T 370 over Midway River?

It is owned by the Town or Township Highway Agency.