US Bridges

Csah 11 over Silver Creek

Fair

Winona County, Minnesota · 0.3 MI N of S County Lin · Structure no. 92733

Built
1971
54 years old
Condition
Fair
inspected October 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
310
2019 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 Winona County, Minnesota. It was built in 1971, so it is 54 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 310 vehicles a day, projected to reach 280 by 2039. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCsah 11
CrossesSilver Creek
Location0.3 MI N of S County Lin
RouteCounty Highway 11
CountyWinona County
StateMinnesota
Coordinates43.85062, -91.51039
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2019)
Projected traffic280 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 1971, making it 54 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 October 2024.

How much traffic does Csah 11 over Silver Creek carry?

About 310 vehicles per day (2019 count).

How long is Csah 11 over Silver Creek?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.4 m).

Who owns Csah 11 over Silver Creek?

It is owned by the County Highway Agency.