US Bridges

Mn 72 over Rainy River

Good

Lake of the Woods County, Minnesota · 0.1 MI N of JCT Mn 11 · Structure no. 39016

Built
2020
5 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,348 ft
5 main spans
Daily traffic
1,200
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 72 over Rainy River is a steel continuous stringer/multi-beam or girder carrying Mn 72 over Rainy River in Lake of the Woods County, Minnesota. It was built in 2020, so it is 5 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 1,200 vehicles a day, roughly 3% of them trucks, projected to reach 1,450 by 2039. The structure is 1,348 ft (411 m) long and 48 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesMn 72
CrossesRainy River
Location0.1 MI N of JCT Mn 11
RouteState Highway 72
Coordinates48.7191, -94.5906
Functional classRural Principal Arterial - Other

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length1,348 ft (411 m)
Longest span300 ft (91.4 m)
Deck width48 ft (14.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2019)
Projected traffic1,450 by 2039
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Mn 72 over Rainy River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Mn 72 over Rainy 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 April 2024.

How much traffic does Mn 72 over Rainy River carry?

About 1,200 vehicles per day (2019 count), of which roughly 3% are trucks.

How long is Mn 72 over Rainy River?

The structure is 1,348 ft (411 m) long with a longest span of 300 ft (91.4 m) and a deck 48 ft wide.

Who owns Mn 72 over Rainy River?

It is owned by the State Highway Agency.