user base • Base Data Collec4on and Prepara4on • LiDAR, imagery, exis4ng NHD, local hydro and stormwater data, dams, etc. • Generate Terrain Reference Files • Local-Res NHD Linework Using Reference Files – Confla4on / AFribu4on for GNIS, Na4onal Map, Reach Numbers, Upload to Na4onal Map, TNRIS, as steward or through steward AECOM Experience with Ele-Hydro (Since 2006)