US Bridges

Ut 50 over Sturgeon River

Good

Koochiching County, Minnesota · 0.2 MI S of JCT Csah 30 · Structure no. 91566

Built
1978
47 years old
Condition
Good
inspected August 2022
Type
Culvert
Concrete
Length
32 ft
2 main spans
Daily traffic
3
1973 count
Owner
County
County Highway Agency

About this bridge

Ut 50 over Sturgeon River is a concrete culvert carrying Ut 50 over Sturgeon River in Koochiching County, Minnesota. It was built in 1978, so it is 47 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 3 vehicles a day, projected to reach 3 by 2029. The structure is 32 ft (9.8 m) long. If it were closed, the detour would be 98.8 mi (159 km).

CarriesUt 50
CrossesSturgeon River
Location0.2 MI S of JCT Csah 30
RouteCounty Highway 50
Coordinates48.21634, -94.10265
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span13 ft (3.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3 (1973)
Projected traffic3 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Ut 50 over Sturgeon River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Ut 50 over Sturgeon 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 August 2022.

How much traffic does Ut 50 over Sturgeon River carry?

About 3 vehicles per day (1973 count).

How long is Ut 50 over Sturgeon River?

The structure is 32 ft (9.8 m) long with a longest span of 13 ft (3.9 m).

Who owns Ut 50 over Sturgeon River?

It is owned by the County Highway Agency.