The Kenai Watershed Forum (KWF) tasked GSS with the completion of a comprehensive review and validation of both the one dimensional (1D or linear features) and two dimensional (2D or polygon features) NHD data for two hydrologic unit code (HUC) sub-basins (HUC-8 19020301 and HUC-8 19020302) on the Kenai Peninsula, Alaska. These two sub-basins cover approximately 4,708,533 acres of land stretching from the Turnagain Arm in the north to the City of Homer in the south.
The purpose of this project was to review, validate and, where necessary, update the Kenai Peninsula NHD in order to meet the national quality standards identified by the USGS. This validation process is possible because up-to-date, large scale imagery and digital elevation data is now available for the Peninsula through the mapping efforts of the Kenai Borough, the US Fish and Wildlife Service (USFWS) and the Alaska Spatial Data Mapping Initiative (SDMI).
These watersheds are vital to not only the natural landscape and wildlife that exists there, but the Kenai is well known as a premier sport and commercial fishing destination. It is important to protect and enhance the native fish and aquatic resources of this region for both its natural beauty and its benefit to the economy. The NHD is useful for contributing to the KWF’s planning efforts for habitat conservation and restoration. With its lakes and streams mapped the KWF and its partners can use this data to better assess where stream features may be affected negatively through land use. This data can also be used to inform policy makers of conditions affecting the watersheds on the Kenai Peninsula.