Iowa Stream Slope Download

This coverage contains selected arcs from the Iowa Stream Centerline coverage which was developed by the DNR and U of I IIHR. The selected arcs represent the centerlines of wide streams, impoundments, reservoirs, and wetlands as well as the segments of single line streams. Pseudonodes were removed from the Stream Centerline coverage so each segment went from confluence to confluence. Elevations for each node were obtained from the Iowa LiDAR DEM (2007-2010) data. The change in elevation between nodes was calculated and divided by the segment length to obtain the slope in m/m.