re: French drain system

My limited experience is that French drains are not much use when SoLa days of heavy rain leave water that stands for days. Installed catch basins at two lowest points and ran buried 6" pipe to an adjacent large ditch. Clears the yard very fast...catch basins in lawn are not pretty.

With all drainage solutions you must have some nearby low place to receive the water. Worse scenario is needing a collection area and a sump pump to pump water out to street drains.