US Bridges

T 159 over Groundhouse River

Good

Kanabec County, Minnesota · 0.5 MI E of JCT TH 47 · Structure no. 33J04

Built
2000
25 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
50
1999 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T 159 over Groundhouse River is a concrete culvert carrying T 159 over Groundhouse River in Kanabec County, Minnesota. It was built in 2000, so it is 25 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 50 vehicles a day, projected to reach 50 by 2029. The structure is 30 ft (9 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesT 159
CrossesGroundhouse River
Location0.5 MI E of JCT TH 47
RouteCounty Highway 159
Coordinates45.80334, -93.39811
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
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 traffic50 (1999)
Projected traffic50 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T 159 over Groundhouse River built?

It was built in 2000, making it 25 years old in 2025.

What condition is T 159 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 October 2022.

How much traffic does T 159 over Groundhouse River carry?

About 50 vehicles per day (1999 count).

How long is T 159 over Groundhouse River?

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

Who owns T 159 over Groundhouse River?

It is owned by the Town or Township Highway Agency.