US Bridges

Csah 11 over Groundhouse River

Good

Kanabec County, Minnesota · 0.6 MI S of JCT Csah 17 · Structure no. 95862

Built
1988
37 years old
Condition
Good
inspected November 2024
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
1,100
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Groundhouse River is a concrete culvert carrying Csah 11 over Groundhouse River in Kanabec County, Minnesota. It was built in 1988, so it is 37 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,100 vehicles a day, projected to reach 1,050 by 2038. The structure is 30 ft (9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCsah 11
CrossesGroundhouse River
Location0.6 MI S of JCT Csah 17
RouteCounty Highway 11
Coordinates45.80779, -93.26591
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,100 (2018)
Projected traffic1,050 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Csah 11 over Groundhouse River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Csah 11 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 2024.

How much traffic does Csah 11 over Groundhouse River carry?

About 1,100 vehicles per day (2018 count).

How long is Csah 11 over Groundhouse River?

The structure is 30 ft (9 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 11 over Groundhouse River?

It is owned by the County Highway Agency.