US Bridges

Csah 11 over Silver Creek

Fair

Olmsted County, Minnesota · 1.2 MI S of JCT Csah 2 · Structure no. 92149

Built
1965
60 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
1,650
2018 count
Owner
County
County Highway Agency

About this bridge

Csah 11 over Silver Creek is a concrete culvert carrying Csah 11 over Silver Creek in Olmsted County, Minnesota. It was built in 1965, so it is 60 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 1,650 vehicles a day, projected to reach 1,486 by 2038. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesSilver Creek
Location1.2 MI S of JCT Csah 2
RouteCounty Highway 11
CountyOlmsted County
StateMinnesota
Coordinates44.04088, -92.36887
Functional classRural Major 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 inspectionNovember 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 rating60 US tons
Inventory rating46.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,650 (2018)
Projected traffic1,486 by 2038
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 11 over Silver Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Csah 11 over Silver Creek 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 November 2023.

How much traffic does Csah 11 over Silver Creek carry?

About 1,650 vehicles per day (2018 count).

How long is Csah 11 over Silver Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m).

Who owns Csah 11 over Silver Creek?

It is owned by the County Highway Agency.