US Bridges

Mn 220 over Grand Marais River

Fair

Polk County, Minnesota · 6.2 MI N of JCT TH 2 · Structure no. 95119

Built
1983
42 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
51 ft
4 main spans
Daily traffic
3,412
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 220 over Grand Marais River is a concrete culvert carrying Mn 220 over Grand Marais River in Polk County, Minnesota. It was built in 1983, so it is 42 years old, older 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 3,412 vehicles a day, roughly 9% of them trucks, projected to reach 3,200 by 2041. The structure is 51 ft (15.6 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesMn 220
CrossesGrand Marais River
Location6.2 MI N of JCT TH 2
RouteState Highway 220
CountyPolk County
StateMinnesota
Coordinates48.01903, -97.02067
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length51 ft (15.6 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,412 (2021)
Projected traffic3,200 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 220 over Grand Marais River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Mn 220 over Grand Marais River 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 August 2023.

How much traffic does Mn 220 over Grand Marais River carry?

About 3,412 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Mn 220 over Grand Marais River?

The structure is 51 ft (15.6 m) long with a longest span of 12 ft (3.7 m).

Who owns Mn 220 over Grand Marais River?

It is owned by the State Highway Agency.