US Bridges

Mn 55 over N Fk Crow River

Fair

Kandiyohi County, Minnesota · 1.0 MI NW of JCT Csah 2 · Structure no. 34021

Built
1979
46 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
137 ft
3 main spans
Daily traffic
1,950
2018 count
Owner
State
State Highway Agency

About this bridge

Mn 55 over N Fk Crow River is a steel continuous stringer/multi-beam or girder carrying Mn 55 over N Fk Crow River in Kandiyohi County, Minnesota. It was built in 1979, so it is 46 years old, older 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 1,950 vehicles a day, roughly 12% of them trucks, projected to reach 1,750 by 2038. The structure is 137 ft (41.9 m) long and 50 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

CarriesMn 55
CrossesN Fk Crow River
Location1.0 MI NW of JCT Csah 2
RouteState Highway 55
Coordinates45.41022, -94.86805
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.5 US tons
Inventory rating45.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length137 ft (41.9 m)
Longest span52 ft (15.9 m)
Deck width50 ft (15.3 m)
Roadway width47 ft (14.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,950 (2018)
Projected traffic1,750 by 2038
Trucks12%
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 55 over N Fk Crow River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Mn 55 over N Fk Crow River 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 2024.

How much traffic does Mn 55 over N Fk Crow River carry?

About 1,950 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is Mn 55 over N Fk Crow River?

The structure is 137 ft (41.9 m) long with a longest span of 52 ft (15.9 m) and a deck 50 ft wide.

Who owns Mn 55 over N Fk Crow River?

It is owned by the State Highway Agency.