This is from the WCCO website:
Towboats Poised To Move Up Mississippi
Boats Expected To Roam Upriver Next Week
Posted: 3:10 p.m. CST March 6, 2002
Here’s another sign of spring: The first towboats of the season should be heading up the Mississippi River starting next week. That’s the word from Mark Beseler, the lockmaster at Lock and Dam 5A south of Fountain City, Wis. Beseler said the only thing stopping them now is a repair project at Lock Number 12 located at Belleview, Iowa. Those locks have been dewatered all winter and are due to be reopened for traffic Monday.
Several towboats are waiting below Lock 12 and ready to proceed up river.
They should have no problem until they reach Lake Pepin, if they are going that far north.
The lake has about 5 to 6 inches of solid ice at two or three locations.