A 5-ha area is to be converted into a subdivision. The initial conditions are: longest watercourse length 1500 m and average slope 3.5%. Use Figure 16.1 to estimate the existing and future peak storm...

A 5-ha area is to be converted into a subdivision. The initial conditions are: longest watercourse length 1500 m and average slope 3.5%. Use Figure 16.1 to estimate the existing and future peak storm runoff values for both the 10- and 25-year events. Use a C value of0.3 for exisiting conditions and 0.7 for future conditions.