Description: This line theme represents enclosed water conveyance features maintained for stormwater conveyance. Both public and private features are collected in unincorporated Pierce County using GPS technology, except where private gates prevent access. This data is updated daily
Copyright Text: Staff from the following Pierce County departments worked on this project: Public Works & Utilities Road Operations and Surface Water Management, and Information Technology GIS.
Description: This feature class shows ponds, lakes, reservoirs and coves in Pierce County. This feature classs was built using the 2011 LIDAR provided by the Puget Sound Lidar Consortium. Most features were drawn following an individual 2-foot contour (created by the 2011 LIDAR). Some features do not follow a single contour throughout the entire body of water so LIDAR imagery and orthophotography were utilized to fill in the appropriate boundary for these bodies of water.
Copyright Text: Pierce County Spatial Services (Joey Bisig), and Planning and Public Works, Surface Water Management digitized this feature class. Pierce County Planning and Public Works, Surface Water Management performed QC and review.
Description: For this feature class, a riverbank is defined as the area in which a river could possibly migrate. We were able to draw this feature class based on that definition by using a combination of the 2011 LIDAR imagery, 2-foot contours and orthophotos (new and historical). Each of the sources were utilized to provide evidence to where the riverbanks extend to. The decision to capture possible migration channels was chosen to keep a consistent and functional riverbank layer while also establishing an accurate area of where the river could possibly flow.
Copyright Text: Pierce County Spatial Services (Joey Bisig), and Planning and Public Works, Surface Water Management digitized this feature class. Pierce County Planning and Public Works, Surface Water Management performed QC and review.
Description: This feature class shows streams, centerlines of rivers, centerlines of water bodies, culverts and pipes, and subterranean features. It is an accurate hydrology feature class that was built using the 2011 LIDAR provided by the Puget Sound Lidar Consortium. Also utilized were a combination of orthophotography for both current and historical uses, 2-foot contours (created by the 2011 LIDAR), Department of Natural Resources stream centerlines, adjacent county stream centerlines, and GPS drainage inventory. Each of the sources served a different purpose and combined created more accurate hydrology data for mapping and analysis. All streams manually created. The determination of stream location relied heavily on the 2011 LIDAR and contours while at 1:600 scale or better. After the initial stream creation was completed, the lower quality Department of Natural Resources (DNR) streams were edge-matched to this more accurate Pierce County hydrology layer in Eastern Pierce County around Mount Rainier. Adjacent county streams were edge-matched to the more accurate Pierce County hydrology at Pierce County’s boundary.
Copyright Text: Pierce County Spatial Services (Joey Bisig), and Planning and Public Works, Surface Water Management digitized this feature class. Pierce County Planning and Public Works, Surface Water Management performed QC and review.
Description: This polygon identifies the Puget Sound Shoreline in Pierce County. This data was created using 2-foot contours from the 2011 LIDAR data. The 10-foot elevation was chosen as the primary shoreline boundary.
Copyright Text: Pierce County Spatial Services (Joey Bisig), and Planning and Public Works, Surface Water Management digitized this feature class. Pierce County Planning and Public Works, Surface Water Management performed QC and review.