US Bridges

Csah 15 over Stream

Fair

Nobles County, Minnesota · 0.7 MI N of JCT Csah 35 · Structure no. L3345

Built
1957
68 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
360
2015 count
Owner
County
County Highway Agency

About this bridge

Csah 15 over Stream is a concrete culvert carrying Csah 15 over Stream in Nobles County, Minnesota. It was built in 1957, so it is 68 years old, older than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 360 vehicles a day, projected to reach 360 by 2039. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCsah 15
CrossesStream
Location0.7 MI N of JCT Csah 35
RouteCounty Highway 15
CountyNobles County
StateMinnesota
Coordinates43.64109, -95.87412
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating87.1 US tons
Inventory rating52.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2015)
Projected traffic360 by 2039
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$36 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Csah 15 over Stream built?

It was built in 1957, making it 68 years old in 2025.

What condition is Csah 15 over Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Csah 15 over Stream carry?

About 360 vehicles per day (2015 count).

How long is Csah 15 over Stream?

The structure is 22 ft (6.8 m) long with a longest span of 10 ft (3 m).

Who owns Csah 15 over Stream?

It is owned by the County Highway Agency.