US Bridges

Mn 220 over Red Lake River

Fair

Polk County, Minnesota · 0.5 MI SW of JCT TH 2 · Structure no. 60518

Built
1973
52 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,211 ft
2 main spans
Daily traffic
1,027
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 220 over Red Lake River is a steel continuous stringer/multi-beam or girder carrying Mn 220 over Red Lake River in Polk County, Minnesota. It was built in 1973, so it is 52 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 1,027 vehicles a day, roughly 15% of them trucks, projected to reach 910 by 2041. The structure is 1,211 ft (369 m) long and 40 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMn 220
CrossesRed Lake River
Location0.5 MI SW of JCT TH 2
RouteState Highway 220
CountyPolk County
StateMinnesota
Coordinates47.89689, -96.96248
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.6 US tons
Inventory rating35.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+13 approach)
Design loadHS 20
Structure length1,211 ft (369 m)
Longest span170 ft (51.8 m)
Deck width40 ft (12.1 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,027 (2021)
Projected traffic910 by 2041
Trucks15%
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

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 Red Lake River built?

It was built in 1973, making it 52 years old in 2025.

What condition is Mn 220 over Red Lake 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 Red Lake River carry?

About 1,027 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Mn 220 over Red Lake River?

The structure is 1,211 ft (369 m) long with a longest span of 170 ft (51.8 m) and a deck 40 ft wide.

Who owns Mn 220 over Red Lake River?

It is owned by the State Highway Agency.