Originally Posted by robphelan
our house is about 3 years old and is backs up to a dry creek bed. there is a natural slope from the road down past our house to the creek.
the builder installed a french drain in front of the house to help drain heavy rains. the drain funnels the water around the house and out to the creekbed ~120 ft back.
Sound like more grade work is in order. If it's coming down faster than the present setup can handle that is all I can come up with. When you say heavy rain what are we talking about, 4-5 in per hr on saturated ground on a natural water course? Is this normal rain in your area or a 10 yr rain or 50 yr rain or 100yr rain? You can get those figures from the national weather bureau for your area they keep records. I did work once on a house that was built over a stream. Nice view!