I'm glad to see these responses. It was one of those things you're fairly sure about, however, you just need to hear it from someone else to be confident. I'll often use different methods to check and make sure my results are reasonable(as cvg noted), however, I had just never seen someone...
I am preparing a drainage report for a client that is having flooding problems. His site existed prior to the development of an adjacent property. A broad swale previously flowed onto my clients property from undeveloped land. The land was developed and the stormwater from that development...