US Bridges

Csah 30 over Crow Wing River

Good

Wadena County, Minnesota · 0.1 MI S of JCT Csah 32 · Structure no. 11513

Built
1980
45 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
303 ft
4 main spans
Daily traffic
667
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 30 over Crow Wing River is a steel continuous stringer/multi-beam or girder carrying Csah 30 over Crow Wing River in Wadena County, Minnesota. It was built in 1980, so it is 45 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 667 vehicles a day, projected to reach 530 by 2041. The structure is 303 ft (92.3 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCsah 30
CrossesCrow Wing River
Location0.1 MI S of JCT Csah 32
RouteCounty Highway 30
Coordinates46.41628, -94.77935
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating32.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length303 ft (92.3 m)
Longest span83 ft (25.3 m)
Deck width35 ft (10.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic667 (2021)
Projected traffic530 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 30 over Crow Wing River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Csah 30 over Crow Wing River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Csah 30 over Crow Wing River carry?

About 667 vehicles per day (2021 count).

How long is Csah 30 over Crow Wing River?

The structure is 303 ft (92.3 m) long with a longest span of 83 ft (25.3 m) and a deck 35 ft wide.

Who owns Csah 30 over Crow Wing River?

It is owned by the County Highway Agency.