Water Supply and Quality Projects
The Scott River is located in the Klamath Mountains of Siskiyou County in northern California. Primarily flowing northward and ultimately into the Klamath River, the Scott River drains a 520,184 acre (813 square mile) watershed. Variability in streamflow within the watershed is primairly due to fluctuations in snowpack and the quality of the water year. The Scott Valley primairly consists of unconsolidated sediment (typically alluvial in origin) that allows for significant connectivity between the Scott River, its tributaries and the underlying aquifer.
Since 2002 the Siskiyou RCD has maintained streamflow gaging stations on the Scott River tributaries. In 2008 the RCD installed stations on the Scott River Mainstem. This monitoring effort provides valuable information for the local community regarding available water supply. As of January 1, 2016 the RCD has no funding available to maintain streamflow stations.
Since 1997 the Siskiyou RCD has maintained water temperature trend monitoring stations.
Soil Erosion Reduction
The treatment of actively eroding streambanks serves to stabilize substrates, reduce the potential for significant channel migration, capture and store suspended sediment, promote shade and filter potential pollutants from adjacent lands. Objectives of stabilization projects are to regrade and armour the streambank, push the thalweg away from the bank and improve instream habitat through the use of bioengineered log jams. Streambank stabilizations are accompanied by planting at the site to promote vegetation within the riparian corridor, which will provide further stability to the banks, filter runoff and add shade to the river. Since 2013, the Siskiyou RCD has implemented bioengineered streambank stabilizations at three sites along the Scott River mainstem to protect adjacent lands and reduce sediment contributions.
Riparian vegetation serves a number of important functions related to water quality including stabilizing banks, filtering runoff and reducing solar inputs to the stream. An effective riparian corridor is able to dissipate stream energy, reduce soil erosion and flood damage, while providing wildlife habitat and forage.
To date the Siskiyou RCD has implemented riparian planting on more than 300 acres of the Scott River and tributaries. Not all of the plantings have been sucessful, and in 2007-2008 the RCD completed an inventory and assessment of previous plantings to evaluate methodology. The outcome of this was the development of the Scott River Watershed Riparian Restoration Strategy and Schedule, which was adopted by the Siskiyou RCD on June 5th, 2014.