US Bridges

Mn 65 over Little Fork River

Fair

Koochiching County, Minnesota · 14.5 MI S of JCT TH 71 · Structure no. 36024

Built
2003
22 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
420 ft
3 main spans
Daily traffic
36
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 65 over Little Fork River is a prestressed concrete stringer/multi-beam or girder carrying Mn 65 over Little Fork River in Koochiching County, Minnesota. It was built in 2003, so it is 22 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 36 vehicles a day, roughly 28% of them trucks, projected to reach 65 by 2042. The structure is 420 ft (128.1 m) long and 39 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesMn 65
CrossesLittle Fork River
Location14.5 MI S of JCT TH 71
RouteState Highway 65
Coordinates48.20894, -93.49652
Functional classRural Major Collector

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating99.8 US tons
Inventory rating45.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length420 ft (128.1 m)
Longest span139 ft (42.4 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2022)
Projected traffic65 by 2042
Trucks28%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 65 over Little Fork River built?

It was built in 2003, making it 22 years old in 2025.

What condition is Mn 65 over Little Fork 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 Little Fork River carry?

About 36 vehicles per day (2022 count), of which roughly 28% are trucks.

How long is Mn 65 over Little Fork River?

The structure is 420 ft (128.1 m) long with a longest span of 139 ft (42.4 m) and a deck 39 ft wide.

Who owns Mn 65 over Little Fork River?

It is owned by the State Highway Agency.