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The Lester River approximately 1 mile above Superior St., showing the steep clay banks that can pose a challenge with sediment. (Click image to enlarge) Stream or Fluvial Geomorphology:The study of how the geological features and shape of the stream channel change over time. Fixing problems and designing with nature Increasingly, we're hearing about problems of too much sediment, eroding banks, controversies over how close homes and condos are to streams and lakes, and about stormwater problems and costs. Doing the best planning and managing the land to protect our streams Watersheds that have been altered by land clearing, channelization, and ditching present extra difficulties in preventing the degradation of water quality and biological communities. Understanding how these man-made disturbances overlay the natural forest, stream channels, drainage patterns, floodplains, terraces, and bluffs is needed to predict erosion, sediment transport and deposition, and stormwater runoff. We have choices. Protecting water resources up front, by designing development to reduce stormwater and erosion, is cheaper than paying restoration costs for decades. |
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The most comprehensive classification of Duluth's urban streams was performed
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