US Bridges

Csah 15 over Stream

Good

Cottonwood County, Minnesota · 0.2 MI W of JCT Csah 7 · Structure no. 93713

Built
1985
40 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
50 ft
3 main spans
Daily traffic
26
2021 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Stream is a concrete culvert carrying Csah 15 over Stream in Cottonwood County, Minnesota. It was built in 1985, so it is 40 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 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 26 vehicles a day, projected to reach 60 by 2041. The structure is 50 ft (15.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCsah 15
CrossesStream
Location0.2 MI W of JCT Csah 7
RouteCounty Highway 15
Coordinates43.90588, -95.43636
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating43.2 US tons
Inventory rating32.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length50 ft (15.2 m)
Longest span11 ft (3.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2021)
Projected traffic60 by 2041
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 15 over Stream built?

It was built in 1985, making it 40 years old in 2025.

What condition is Csah 15 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 2023.

How much traffic does Csah 15 over Stream carry?

About 26 vehicles per day (2021 count).

How long is Csah 15 over Stream?

The structure is 50 ft (15.2 m) long with a longest span of 11 ft (3.5 m).

Who owns Csah 15 over Stream?

It is owned by the County Highway Agency.