RiverCAD takes complete advantage of digital terrain mapping automation:

• Cross sections extracted from 3D digital contour maps, TINs,
  DTMs, DEMs (digital elevation models), LiDAR, and AutoCAD
  Land Desktop and Civil 3D surfaces
• Manning's roughness values and stationing automatically
  mapped onto cross section
• Overbank stations automatically mapped onto cross sections
• Channel and overbank flow lengths measured and entered into
  cross sections
• Ineffective flow area stations automatically mapped onto cross
  sections
• Levee stations automatically mapped onto cross section
• Importing of complete or partial HEC-RAS or HEC-2 input files,
  station-elevation, Northing-Easting, or XYZ coordinate data.

RiverCAD's digital terrain automation capabilities allow the modeler to construct, analyze, and display the analysis results for a HEC-RAS (or HEC-2) model for several miles of river in just minutes. Several orders of magnitude increase in productivity is achievable using RiverCAD.