US Bridges

M 51 over Whisky Creek

Fair

Clay County, Minnesota · 0.2 MI S of JCT Csah 2 · Structure no. L9744

Built
1975
50 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
185
1986 count
Owner
City
City or Municipal Highway Agency

About this bridge

M 51 over Whisky Creek is a concrete culvert carrying M 51 over Whisky Creek in Clay County, Minnesota. It was built in 1975, so it is 50 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 6 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 185 vehicles a day, roughly 14% of them trucks, projected to reach 185 by 2029. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesM 51
CrossesWhisky Creek
Location0.2 MI S of JCT Csah 2
RouteCity Street 51
Coordinates46.65579, -96.42667
Functional classRural Local

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating39.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span10 ft (2.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic185 (1986)
Projected traffic185 by 2029
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 M 51 over Whisky Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is M 51 over Whisky 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 January 2025.

How much traffic does M 51 over Whisky Creek carry?

About 185 vehicles per day (1986 count), of which roughly 14% are trucks.

How long is M 51 over Whisky Creek?

The structure is 24 ft (7.2 m) long with a longest span of 10 ft (2.9 m).

Who owns M 51 over Whisky Creek?

It is owned by the City or Municipal Highway Agency.