US Bridges

Csah 12 over Crow Wing River

Poor

Wadena County, Minnesota · 0.1 MI E of JCT TH227 · Structure no. 7170

Built
1958
67 years old
Condition
Poor
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
200 ft
3 main spans
Daily traffic
643
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 12 over Crow Wing River is a steel stringer/multi-beam or girder carrying Csah 12 over Crow Wing River in Wadena County, Minnesota. It was built in 1958, so it is 67 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 643 vehicles a day, projected to reach 650 by 2041. The structure is 200 ft (61 m) long and 36 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesCsah 12
CrossesCrow Wing River
Location0.1 MI E of JCT TH227
RouteCounty Highway 12
CountyWadena County
StateMinnesota
Coordinates46.6399, -94.88004
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; extensive scour has occurred
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length200 ft (61 m)
Longest span66 ft (20.1 m)
Deck width36 ft (11.1 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic643 (2021)
Projected traffic650 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$907 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 12 over Crow Wing River built?

It was built in 1958, making it 67 years old in 2025.

What condition is Csah 12 over Crow Wing 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 June 2024.

How much traffic does Csah 12 over Crow Wing River carry?

About 643 vehicles per day (2021 count).

How long is Csah 12 over Crow Wing River?

The structure is 200 ft (61 m) long with a longest span of 66 ft (20.1 m) and a deck 36 ft wide.

Who owns Csah 12 over Crow Wing River?

It is owned by the County Highway Agency.