US Bridges

Csah 20 over Beaver Creek

Good

Cass County, Minnesota · 2.9 MI W;s of JCT TH 64 · Structure no. 92856

Built
1964
61 years old
Condition
Good
inspected September 2023
Type
Culvert
Steel
Length
25 ft
2 main spans
Daily traffic
255
2019 count
Owner
County
County Highway Agency

About this bridge

Csah 20 over Beaver Creek is a steel culvert carrying Csah 20 over Beaver Creek in Cass County, Minnesota. It was built in 1964, so it is 61 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 255 vehicles a day, projected to reach 270 by 2039. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 20
CrossesBeaver Creek
Location2.9 MI W;s of JCT TH 64
RouteCounty Highway 20
Coordinates46.6674, -94.74422
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span10 ft (3.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2019)
Projected traffic270 by 2039
Trucks0%
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

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 20 over Beaver Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is Csah 20 over Beaver Creek 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 2023.

How much traffic does Csah 20 over Beaver Creek carry?

About 255 vehicles per day (2019 count).

How long is Csah 20 over Beaver Creek?

The structure is 25 ft (7.6 m) long with a longest span of 10 ft (3.2 m).

Who owns Csah 20 over Beaver Creek?

It is owned by the County Highway Agency.