US Bridges

Csah 21 over Stream

Good

Murray County, Minnesota · 0.8 MI W of JCT TH 59 · Structure no. 51J46

Built
2013
12 years old
Condition
Good
inspected September 2021
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
40
2009 count
Owner
County
County Highway Agency

About this bridge

Csah 21 over Stream is a concrete culvert carrying Csah 21 over Stream in Murray County, Minnesota. It was built in 2013, so it is 12 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 40 vehicles a day, projected to reach 40 by 2034. The structure is 44 ft (13.3 m) long. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCsah 21
CrossesStream
Location0.8 MI W of JCT TH 59
RouteCounty Highway 21
Coordinates44.18154, -95.76035
Functional classRural 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 inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length44 ft (13.3 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2009)
Projected traffic40 by 2034
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 2013, making it 12 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 September 2021.

How much traffic does Csah 21 over Stream carry?

About 40 vehicles per day (2009 count).

How long is Csah 21 over Stream?

The structure is 44 ft (13.3 m) long with a longest span of 16 ft (4.9 m).

Who owns Csah 21 over Stream?

It is owned by the County Highway Agency.