US Bridges

Mn 11 over Red River of the North

Fair

Kittson County, Minnesota · At N Dakota State Line · Structure no. 35011

Built
2010
15 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
4,090 ft
37 main spans
Daily traffic
1,729
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 11 over Red River of the North is a steel continuous stringer/multi-beam or girder carrying Mn 11 over Red River of the North in Kittson County, Minnesota. It was built in 2010, so it is 15 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 1,729 vehicles a day, roughly 18% of them trucks, projected to reach 2,000 by 2041. The structure is 4,090 ft (1,246.6 m) long and 43 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesMn 11
CrossesRed River of the North
LocationAt N Dakota State Line
RouteState Highway 11
Coordinates48.57244, -97.14784
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans37
Design loadHL 93
Structure length4,090 ft (1,246.6 m)
Longest span250 ft (76.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,729 (2021)
Projected traffic2,000 by 2041
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 km)
TollOn a free road
National Highway SystemYes

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 11 over Red River of the North built?

It was built in 2010, making it 15 years old in 2025.

What condition is Mn 11 over Red River of the North 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 August 2024.

How much traffic does Mn 11 over Red River of the North carry?

About 1,729 vehicles per day (2021 count), of which roughly 18% are trucks.

How long is Mn 11 over Red River of the North?

The structure is 4,090 ft (1,246.6 m) long with a longest span of 250 ft (76.2 m) and a deck 43 ft wide.

Who owns Mn 11 over Red River of the North?

It is owned by the State Highway Agency.