US Bridges

Mn 4 over S Fk Crow River

Fair

Meeker County, Minnesota · 0.6 MI S of Cosmos · Structure no. 6801

Built
1952
73 years old
Condition
Fair
inspected October 2024
Type
Girder and Floorbeam System
Concrete
Length
67 ft
1 main span
Daily traffic
1,702
2021 count
Owner
State
State Highway Agency

About this bridge

Mn 4 over S Fk Crow River is a concrete girder and floorbeam system carrying Mn 4 over S Fk Crow River in Meeker County, Minnesota. It was built in 1952, so it is 73 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 5 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 1,702 vehicles a day, roughly 15% of them trucks, projected to reach 1,600 by 2041. The structure is 67 ft (20.3 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMn 4
CrossesS Fk Crow River
Location0.6 MI S of Cosmos
RouteState Highway 4
CountyMeeker County
StateMinnesota
Coordinates44.92849, -94.69665
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.8 US tons
Inventory rating22.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length67 ft (20.3 m)
Longest span59 ft (18.1 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,702 (2021)
Projected traffic1,600 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$231 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 4 over S Fk Crow River built?

It was built in 1952, making it 73 years old in 2025.

What condition is Mn 4 over S 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 4 over S Fk Crow River carry?

About 1,702 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Mn 4 over S Fk Crow River?

The structure is 67 ft (20.3 m) long with a longest span of 59 ft (18.1 m) and a deck 34 ft wide.

Who owns Mn 4 over S Fk Crow River?

It is owned by the State Highway Agency.