US Bridges

Mn 11 over Silver Creek

Poor

Lake of the Woods County, Minnesota · 3.0 MI W of Clementson · Structure no. 39011

Built
1985
40 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
186 ft
3 main spans
Daily traffic
820
2019 count
Owner
State
State Highway Agency

About this bridge

Mn 11 over Silver Creek is a prestressed concrete stringer/multi-beam or girder carrying Mn 11 over Silver Creek in Lake of the Woods 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 820 vehicles a day, roughly 20% of them trucks, projected to reach 870 by 2039. The structure is 186 ft (56.8 m) long and 42 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesMn 11
CrossesSilver Creek
Location3.0 MI W of Clementson
RouteState Highway 11
Coordinates48.69572, -94.49138
Functional classRural Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating81.5 US tons
Inventory rating38.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length186 ft (56.8 m)
Longest span61 ft (18.6 m)
Deck width42 ft (12.9 m)
Roadway width39 ft (11.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic820 (2019)
Projected traffic870 by 2039
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Mn 11 over Silver Creek built?

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

What condition is Mn 11 over Silver Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Mn 11 over Silver Creek carry?

About 820 vehicles per day (2019 count), of which roughly 20% are trucks.

How long is Mn 11 over Silver Creek?

The structure is 186 ft (56.8 m) long with a longest span of 61 ft (18.6 m) and a deck 42 ft wide.

Who owns Mn 11 over Silver Creek?

It is owned by the State Highway Agency.