US Bridges

Csah 21 over Stream

Good

Lac qui Parle County, Minnesota · 0.7 MI S of JCT Csah 10 · Structure no. 95140

Built
1980
45 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
39 ft
3 main spans
Daily traffic
50
2020 count
Owner
County
County Highway Agency

About this bridge

Csah 21 over Stream is a concrete culvert carrying Csah 21 over Stream in Lac qui Parle 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 50 vehicles a day, projected to reach 65 by 2040. The structure is 39 ft (11.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 21
CrossesStream
Location0.7 MI S of JCT Csah 10
RouteCounty Highway 21
Coordinates44.88084, -96.13423
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2024
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 rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length39 ft (11.8 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic65 by 2040
Trucks—
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 21 over Stream built?

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

What condition is Csah 21 over Stream 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 October 2024.

How much traffic does Csah 21 over Stream carry?

About 50 vehicles per day (2020 count).

How long is Csah 21 over Stream?

The structure is 39 ft (11.8 m) long with a longest span of 10 ft (2.9 m).

Who owns Csah 21 over Stream?

It is owned by the County Highway Agency.