Water-surface elevation across all watersheds that have the selected annual-chance event.
select a watershed
HEC-RAS Geometry
All available RAS geometry appears automatically in view at zoom 12. Use these controls to hide individual geometry types.
HEC-HMS Geometry
Off by default. Each category you turn on draws across every HMS-bearing watershed at once, full strength at statewide zoom and fading to 50% as you zoom in.