The U.S. Army Corps of Engineers, St. Paul District survey team was out on Lake Pepin Wednesday taking the second ice thickness measurements of the season.
The thickest ice is 22-23 inches between river miles 767 and 770, between the foot of Lake Pepin and Lake City. The thinnest, 7-18 inches, was measured between river miles 777 and 781.
The information will be used by the navigation industry to predict when it’s safe to break through the ice and begin the 2022 navigation season.
The Motor Vessel R. Clayton McWhorter was the first tow to pass through Lake Pepin last year and reach St. Paul, arriving March 19th. Historically the average date in which navigation is open occurs during the third week of March.
The next ice measurement will be Wednesday, March 2nd.