US Bridges

Mn 65 over Sandy River

Fair

Aitkin County, Minnesota · 12.8 MI N of W JCT TH 21 · Structure no. 01013

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
3 main spans
Daily traffic
1,269
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 65 over Sandy River is a prestressed concrete stringer/multi-beam or girder carrying Mn 65 over Sandy River in Aitkin County, Minnesota. It was built in 2005, so it is 20 years old, younger 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 1,269 vehicles a day, roughly 10% of them trucks, projected to reach 1,400 by 2042. The structure is 154 ft (47 m) long and 46 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

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CarriesMn 65
CrossesSandy River
Location12.8 MI N of W JCT TH 21
RouteState Highway 65
CountyAitkin County
StateMinnesota
Coordinates46.78665, -93.32478
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 protection8 Very GoodNo problems noted.
Last inspectionMay 2023
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 alignment8: Equal to present desirable criteria
Operating rating79.6 US tons
Inventory rating45.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length154 ft (47 m)
Longest span75 ft (23 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,269 (2022)
Projected traffic1,400 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed54.1 mi (87 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 65 over Sandy River built?

It was built in 2005, making it 20 years old in 2025.

What condition is Mn 65 over Sandy 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 May 2023.

How much traffic does Mn 65 over Sandy River carry?

About 1,269 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Mn 65 over Sandy River?

The structure is 154 ft (47 m) long with a longest span of 75 ft (23 m) and a deck 46 ft wide.

Who owns Mn 65 over Sandy River?

It is owned by the State Highway Agency.