Showing posts with the label ice jacking

Ice Heaving or Ice Jacking in Twin Lakes, Wisconsin

Check out that shoreline!  That's what they call Ice Jacking or Ice Heaving.  And best I can tell it is quite common in Minnesota.  There's dozens of stories like this one about it happening and damaging both the shoreline and occasionally, someone's property.   I took these photos a bit ago before the lake ice melted completely. We dealt with heaving with our old gate and the pavers underneath it as each winter they'd rise up by a small fraction of an inch, but it was enough to make the gate stick underneath it. That curling up of the earth and movement of the stones from the riprap is something I've never seen before in all my years spent around a lake.  Paw Paw didn't do this, but we also had a lot of beach area with a zero-depth entrance, so perhaps the ice had room to expand? If you look in the photo below, you can see it happening in the neighbors shoreline, too.  But, it doesn't occur everywhere.  Just in *some* spots. Based on what I'