US Bridges

Mn 217 over Beaver Brook

Fair

Koochiching County, Minnesota · 2.4 MI E of JCT TH 65 · Structure no. 36006

Built
1976
49 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
214
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 217 over Beaver Brook is a prestressed concrete stringer/multi-beam or girder carrying Mn 217 over Beaver Brook in Koochiching County, Minnesota. It was built in 1976, so it is 49 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 214 vehicles a day, roughly 19% of them trucks, projected to reach 305 by 2042. The structure is 134 ft (40.7 m) long and 50 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

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CarriesMn 217
CrossesBeaver Brook
Location2.4 MI E of JCT TH 65
RouteState Highway 217
CountyKoochiching County
StateMinnesota
Coordinates48.40319, -93.51609
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating45.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length134 ft (40.7 m)
Longest span43 ft (13.2 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic214 (2022)
Projected traffic305 by 2042
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 217 over Beaver Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is Mn 217 over Beaver Brook 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 May 2023.

How much traffic does Mn 217 over Beaver Brook carry?

About 214 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is Mn 217 over Beaver Brook?

The structure is 134 ft (40.7 m) long with a longest span of 43 ft (13.2 m) and a deck 50 ft wide.

Who owns Mn 217 over Beaver Brook?

It is owned by the State Highway Agency.