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The Department of Conservation and Recreation Perennial Stream Viewer dataset has been created in accordance with §62.1-44.122 of the Code of Virginia to determine compliance with §62.144-123 of the Code of Virginia. The dataset adheres to all requirements established by the Virginia Soil and Water Conservation Board (Board) and the Department of Conservation and Recreation (Department) guidance document entitled Virginia Soil and Water Conservation Board Guidance Document on the Methodology for Identifying Perennial Streams. The Board and the Department reserve the right to utilize the data for other purposes as approved by the Board or Department.
The dataset was created utilizing information from the Virginia Information Technology Agency’s (VITA) Virginia LIDAR dataset; SSURGO dataset that includes information about soils as collected by the National Cooperative Soil Survey; 2002 VGIN-created stream network (derived from digital elevation models (DEMs); and the United States Geological Survey’s National Hydrography Dataset (NHD). Based on these datasets, the dataset delineates perennial or intermittent stream segments within Virginia’s portion of the Chesapeake Bay watershed.
A public viewing application has been created that displays the geographic location of the streams along with a differentiation between a perennial and intermittent designation. The application also allows viewers to submit stream segments that appear to clearly deviate from the imagery which will allow DCR to make updates as necessary.
For those who wish to view the data in other GIS applications, the dataset is available to download in ESRI shapefile and geodatabase formats. An informational presentation that contains details on how the perennial streams dataset was developed is also available for download.