US Bridges

Mn 89 over S Fk Roseau River

Good

Roseau County, Minnesota · 4.3 MI S of Wannaska · Structure no. 68009

Built
2013
12 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
610
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 89 over S Fk Roseau River is a prestressed concrete stringer/multi-beam or girder carrying Mn 89 over S Fk Roseau River in Roseau County, Minnesota. It was built in 2013, so it is 12 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 610 vehicles a day, roughly 2% of them trucks, projected to reach 650 by 2038. The structure is 65 ft (19.8 m) long and 43 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesMn 89
CrossesS Fk Roseau River
Location4.3 MI S of Wannaska
RouteState Highway 89
Coordinates48.59782, -95.73382
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating39.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length65 ft (19.8 m)
Longest span63 ft (19.2 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic610 (2018)
Projected traffic650 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.1 mi (34 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 89 over S Fk Roseau River built?

It was built in 2013, making it 12 years old in 2025.

What condition is Mn 89 over S Fk Roseau 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 July 2024.

How much traffic does Mn 89 over S Fk Roseau River carry?

About 610 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Mn 89 over S Fk Roseau River?

The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.2 m) and a deck 43 ft wide.

Who owns Mn 89 over S Fk Roseau River?

It is owned by the State Highway Agency.