{"id":10417,"date":"2024-02-03T00:15:07","date_gmt":"2024-02-02T23:15:07","guid":{"rendered":"https:\/\/www.aboutriver.com\/?p=10417"},"modified":"2024-02-03T00:15:07","modified_gmt":"2024-02-02T23:15:07","slug":"how-often-does-the-mississippi-river-freeze","status":"publish","type":"post","link":"https:\/\/www.aboutriver.com\/how-often-does-the-mississippi-river-freeze\/","title":{"rendered":"How Often Does The Mississippi River Freeze"},"content":{"rendered":"
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For many, the Mississippi River is a part of America’s history, an icon of its industrial past, and a source of beauty and inspiration. In the winter months, this great river can be found winding across the country’s frozen landscape, but many do not realize that the river can actually freeze. The very thought of the Mississippi River freezing can be both daunting and fascinating. But how often does it happen?<\/p>\n

The Mississippi freezes occasionally during winter months. When temperatures dip below freezing, certain portions of the river freeze, blocking water flow and creating large ice chunks. However, the depths of the Mississippi River make it difficult for the entire river to freeze. It is much colder at the river’s bottom, so the cold temperatures don’t reach the river’s surface until much later in the winter months. That being said, most of the northern section of the Mississippi River does freeze each year, which often creates hazardous conditions for shipping vessels traveling the river.<\/p>\n

But the danger isn’t just caused by the freezing temperatures. The river has to be in a resting stage for it to freeze. When the current is faster, air and evaporation combine with the water, and tend to keep it from freezing. That being said, when the river is at rest, the water can remain calm enough for ice to form around its stillness.<\/p>\n

Two years ago, the ice on the Mississippi even threatened to build up enough to temporarily close the river. The Army Corps of Engineers had to break up the ice and open a small channel in order to keep the river open to vessel traffic. On average, the Mississippi freezes as far south as Wisconsin and usually as far north as Iowa in January or February. The duration of the river’s freeze is usually just a few days to a week, and in some years, the freeze doesn’t even occur.<\/p>\n