US Bridges

CR 57 over Groundhouse River

Good

Kanabec County, Minnesota · 0.6 MI E of JCT Csah 10 · Structure no. 33525

Built
1993
32 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
108 ft
3 main spans
Daily traffic
120
2014 count
Owner
County
County Highway Agency

About this bridge

CR 57 over Groundhouse River is a concrete continuous slab carrying CR 57 over Groundhouse River in Kanabec County, Minnesota. It was built in 1993, so it is 32 years old, younger 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 120 vehicles a day, projected to reach 120 by 2039. The structure is 108 ft (32.9 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCR 57
CrossesGroundhouse River
Location0.6 MI E of JCT Csah 10
RouteCounty Highway 57
Coordinates45.86278, -93.46103
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating97.2 US tons
Inventory rating58.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length108 ft (32.9 m)
Longest span40 ft (12.2 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2014)
Projected traffic120 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 CR 57 over Groundhouse River built?

It was built in 1993, making it 32 years old in 2025.

What condition is CR 57 over Groundhouse 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 November 2023.

How much traffic does CR 57 over Groundhouse River carry?

About 120 vehicles per day (2014 count).

How long is CR 57 over Groundhouse River?

The structure is 108 ft (32.9 m) long with a longest span of 40 ft (12.2 m) and a deck 35 ft wide.

Who owns CR 57 over Groundhouse River?

It is owned by the County Highway Agency.