We just bought a house and the house has a (or once was, at least) a nice shed in the back with both water and power. Image is to scale (the shed is 12' x 12').
The problem is that erosion from the neighbors next door has caused the ground to "rise" against the slab and now the bottom sole plates are rotted out and every time it rains, water comes right into the shed through holes in the rotted siding.
My project is to fix the shed and make it usable for storage, but I'm trying to figure out what's the best approach to keep additional runoff from making my work an expensive trial-and-error process.