flash flood garage
The garage on right is about 8ft X 8ft with about 2 inches of water covering when it starts to seep into basement. So I'm guessing there was a minimum equivalent amount of water also in the drive way, so using 4" in the equation----8x8x(.33[4"ht.])=21.12 cubic feet. 1 cubic ft~7.48 gal. --- 21.12x7.48=157.9776 gallons of water.