US Bridges

Mn 23 over Kettle River

Good

Pine County, Minnesota · 1.2 MI E of N JCT TH 35 · Structure no. 58002

Built
1981
44 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
262 ft
3 main spans
Daily traffic
2,002
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 23 over Kettle River is a steel continuous stringer/multi-beam or girder carrying Mn 23 over Kettle River in Pine County, Minnesota. It was built in 1981, so it is 44 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,002 vehicles a day, roughly 8% of them trucks, projected to reach 2,000 by 2042. The structure is 262 ft (80 m) long and 51 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesMn 23
CrossesKettle River
Location1.2 MI E of N JCT TH 35
RouteState Highway 23
Coordinates46.18002, -92.83257
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
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; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating77.2 US tons
Inventory rating46.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length262 ft (80 m)
Longest span114 ft (34.7 m)
Deck width51 ft (15.4 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,002 (2022)
Projected traffic2,000 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 23 over Kettle River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Mn 23 over Kettle River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Mn 23 over Kettle River carry?

About 2,002 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Mn 23 over Kettle River?

The structure is 262 ft (80 m) long with a longest span of 114 ft (34.7 m) and a deck 51 ft wide.

Who owns Mn 23 over Kettle River?

It is owned by the State Highway Agency.