Time of Concentration don't fill if you have rainfall intensity L= m S= m/m tC= minutes Rainfall depth don't fill if you have rainfall intensity Location Vlora A Borshi Construction Type Gutter, Channel Culvert Bridge P= % Hm= mm Runoff Calculation Do not add any value to I if you are using above fields A= km2 I= mm/ore C= Drainage Area Type Pavement and roofs City Business area Suburb Business area Residential Area Industrial Area Parks and cemeteries Playgrounds Unimproved areas Lawns, sandy soil <2% Lawns, sandy soil 2% - 7% Lawns, sandy soil >7% Lawns, heavy soil <2% Lawns, heavy soil 2% - 7% Lawns, heavy soil >7% Asphalt road Concrete road Unpaved road Calculate Q= m3/s