US Bridges

Mn 65 over Sandy River

Fair

Aitkin County, Minnesota · 8.0 MI N of JCT TH 210 · Structure no. 01016

Built
2005
20 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
161 ft
3 main spans
Daily traffic
2,420
2021 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 5 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 2,420 vehicles a day, roughly 10% of them trucks, projected to reach 2,400 by 2041. The structure is 161 ft (49 m) long and 46 ft wide. If it were closed, the detour would be 54.1 mi (87 km).

Location

Open in Google Maps
CarriesMn 65
CrossesSandy River
Location8.0 MI N of JCT TH 210
RouteState Highway 65
CountyAitkin County
StateMinnesota
Coordinates46.72319, -93.30498
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.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.1 US tons
Inventory rating39.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length161 ft (49 m)
Longest span52 ft (16 m)
Deck width46 ft (14 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,420 (2021)
Projected traffic2,400 by 2041
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 2,420 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Mn 65 over Sandy River?

The structure is 161 ft (49 m) long with a longest span of 52 ft (16 m) and a deck 46 ft wide.

Who owns Mn 65 over Sandy River?

It is owned by the State Highway Agency.