Nonprofit, nonpartisan journalism. Supported by readers.


Sediment problems accelerating in the Minnesota River basin

Dr. Carrie Jennings from the Minnesota Geological Survey explains the natural process that deposits glacial sediment into the Minnesota River and how that sediment will end up in Lake Pepin. What is not natural is the rate at which it is happening. Jennings talks about a project under way to understand where this acceleration of sediment erosion is coming from.

Comments (1)

  1. Submitted by John Hickman on 08/22/2010 - 02:02 pm.

    While it’s true that sedimentation rates accelerated dramatically after Euro-American settlement in the Minnesota River Basin — Lake Pepin is filling in at 10 times its natural rate — data now indicates that sedimentation rates have decreased in the past several years.

    This video was produced for the Working Together for the Minnesota River project, sponsored by the Water Resources Center at Minnesota State University, Mankato. More information is available at

Leave a Reply