US Bridges

Csah 33 over Crow Wing River (dam)

FairPosted for load

Hubbard County, Minnesota · 2.1 MI E of JCT TH 34 · Structure no. 29513

Built
1937
88 years old
Condition
Fair
inspected September 2023
Type
Girder and Floorbeam System
Concrete
Length
20 ft
1 main span
Daily traffic
690
2012 count
Owner
County
County Highway Agency

About this bridge

Csah 33 over Crow Wing River (dam) is a concrete girder and floorbeam system carrying Csah 33 over Crow Wing River (dam) in Hubbard County, Minnesota. It was built in 1937, so it is 88 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. Its operating status is: posted for load restriction.

It carries about 690 vehicles a day, projected to reach 770 by 2032. The structure is 20 ft (6.2 m) long and 35 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 33
CrossesCrow Wing River (dam)
Location2.1 MI E of JCT TH 34
RouteCounty Highway 33
CountyHubbard County
StateMinnesota
Coordinates46.95077, -94.80765
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.9 US tons
Inventory rating22 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span17 ft (5.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic690 (2012)
Projected traffic770 by 2032
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 33 over Crow Wing River (dam) built?

It was built in 1937, making it 88 years old in 2025.

What condition is Csah 33 over Crow Wing River (dam) 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 September 2023.

How much traffic does Csah 33 over Crow Wing River (dam) carry?

About 690 vehicles per day (2012 count).

How long is Csah 33 over Crow Wing River (dam)?

The structure is 20 ft (6.2 m) long with a longest span of 17 ft (5.3 m) and a deck 35 ft wide.

Who owns Csah 33 over Crow Wing River (dam)?

It is owned by the County Highway Agency.