US Bridges

Mn 65 over Bergman Brook

Fair

Kanabec County, Minnesota · 4.2 MI S of JCT TH 18 · Structure no. 6211

Built
1930
95 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
1,655
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 65 over Bergman Brook is a concrete culvert carrying Mn 65 over Bergman Brook in Kanabec County, Minnesota. It was built in 1930, so it is 95 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 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 1,655 vehicles a day, roughly 6% of them trucks, projected to reach 2,050 by 2042. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 26.1 mi (42 km).

Location

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CarriesMn 65
CrossesBergman Brook
Location4.2 MI S of JCT TH 18
RouteState Highway 65
CountyKanabec County
StateMinnesota
Coordinates46.15653, -93.27769
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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 15
Structure length22 ft (6.8 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,655 (2022)
Projected traffic2,050 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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$85 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 65 over Bergman Brook built?

It was built in 1930, making it 95 years old in 2025.

What condition is Mn 65 over Bergman 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 July 2024.

How much traffic does Mn 65 over Bergman Brook carry?

About 1,655 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Mn 65 over Bergman Brook?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3.2 m).

Who owns Mn 65 over Bergman Brook?

It is owned by the State Highway Agency.