US Bridges

Csah 20 over Stream

Good

Clay County, Minnesota · 0.8 MI E of JCT Csah 1 · Structure no. 14J59

Built
2002
23 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
60 ft
4 main spans
Daily traffic
340
2017 count
Owner
County
County Highway Agency

About this bridge

Csah 20 over Stream is a concrete culvert carrying Csah 20 over Stream in Clay County, Minnesota. It was built in 2002, so it is 23 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 340 vehicles a day, projected to reach 340 by 2039. The structure is 60 ft (18.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCsah 20
CrossesStream
Location0.8 MI E of JCT Csah 1
RouteCounty Highway 20
Coordinates46.94864, -96.77113
Functional classUrban Local

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.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.6 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 25 or greater
Structure length60 ft (18.4 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2017)
Projected traffic340 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Stream built?

It was built in 2002, making it 23 years old in 2025.

What condition is Csah 20 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 20 over Stream carry?

About 340 vehicles per day (2017 count).

How long is Csah 20 over Stream?

The structure is 60 ft (18.4 m) long with a longest span of 12 ft (3.7 m).

Who owns Csah 20 over Stream?

It is owned by the County Highway Agency.