Little Susitna Watershed

 

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General Watershed Information ] [ Little Susitna Watershed ] Cottonwood Creek Watershed ]

From jumping and spilling over rocks with water the blue of glaciers, the Little Susitna River begins from the Mint Glacier at Hatcher Pass in the Talkeetna Mountains and flows 113 river miles to empty into Cook Inlet.  Along the way, the Little Susitna matures from the fast flowing glacial river to being slower and wider with gravel and riffle areas near Wasilla and Houston.  By the time the Little Susitna reaches Cook Inlet it is wide and meandering with many switchbacks and is affected by tidal action.  The water has lost its blue tint to browns.  The habitat areas have changed also from spruce and birch riparian areas to large expanses of wetlands.  The Little Susitna watershed helps control flood waters, filters pollutants, supports recreation, and is a scenic landscape.

The Little Susitna is home to runs of Alaska’s five salmon species (Coho, Chinook, Sockeye, Chum, and Pink) and its river habitat holds essential spawning grounds.  According to Alaska Department of Fish & Game, the Little Susitna is one of Southcentral’s most-fished streams.  It is second only to the Kenai River in number of Coho caught.  Needless to say, the high level of use has had some negative effects on the river with stream bank and habitat degradation.

The Little Susitna flows through the heart of the Mat-Su Borough, which since 1990 has seen the population base grow by approximately 16,000 people, a 42% increase.  According to the Alaska Department of Labor, the Mat-Su Borough is Alaska’s fastest growing population center.  In many instances, development has been rapid and land use planning efforts have been narrowly focused and have not addressed resource sustainability.  This could obviously have devastating effects to the Little Susitna and to the local economy.