US Bridges

Mn 47 over S Fk Groundhouse R

Fair

Kanabec County, Minnesota · 3.7 MI S of JCT TH 23 · Structure no. 33009

Built
2004
21 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
92 ft
1 main span
Daily traffic
1,450
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 47 over S Fk Groundhouse R is a prestressed concrete stringer/multi-beam or girder carrying Mn 47 over S Fk Groundhouse R in Kanabec County, Minnesota. It was built in 2004, so it is 21 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 1,450 vehicles a day, roughly 7% of them trucks, projected to reach 1,400 by 2038. The structure is 92 ft (28 m) long and 47 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesMn 47
CrossesS Fk Groundhouse R
Location3.7 MI S of JCT TH 23
RouteState Highway 47
CountyKanabec County
StateMinnesota
Coordinates45.77851, -93.40971
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.6 US tons
Inventory rating41.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length92 ft (28 m)
Longest span90 ft (27.4 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,450 (2018)
Projected traffic1,400 by 2038
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$1,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 47 over S Fk Groundhouse R built?

It was built in 2004, making it 21 years old in 2025.

What condition is Mn 47 over S Fk Groundhouse R 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 October 2023.

How much traffic does Mn 47 over S Fk Groundhouse R carry?

About 1,450 vehicles per day (2018 count), of which roughly 7% are trucks.

How long is Mn 47 over S Fk Groundhouse R?

The structure is 92 ft (28 m) long with a longest span of 90 ft (27.4 m) and a deck 47 ft wide.

Who owns Mn 47 over S Fk Groundhouse R?

It is owned by the State Highway Agency.