US Bridges

Mn 4 over N Fk Crow River

Poor

Meeker County, Minnesota · 10.0 MI N of Grove City · Structure no. 6854

Built
1955
70 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
123 ft
3 main spans
Daily traffic
1,332
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 4 over N Fk Crow River is a steel stringer/multi-beam or girder carrying Mn 4 over N Fk Crow River in Meeker County, Minnesota. It was built in 1955, so it is 70 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,332 vehicles a day, roughly 20% of them trucks, projected to reach 1,200 by 2041. The structure is 123 ft (37.5 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesMn 4
CrossesN Fk Crow River
Location10.0 MI N of Grove City
RouteState Highway 4
Coordinates45.2946, -94.67225
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.8 US tons
Inventory rating36.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length123 ft (37.5 m)
Longest span57 ft (17.5 m)
Deck width34 ft (10.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,332 (2021)
Projected traffic1,200 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$427 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 4 over N Fk Crow River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Mn 4 over N Fk Crow River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Mn 4 over N Fk Crow River carry?

About 1,332 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Mn 4 over N Fk Crow River?

The structure is 123 ft (37.5 m) long with a longest span of 57 ft (17.5 m) and a deck 34 ft wide.

Who owns Mn 4 over N Fk Crow River?

It is owned by the State Highway Agency.