Storm & Flood Damage Recovery in Lubbock, TX

That is how playas work and it is not a drainage failure. These are closed basins with no outlet; they fill from runoff and empty by evaporation and slow seepage through the floor, which takes weeks or longer. The surrounding low ground stays saturated the whole time. Anything built close to the margin experiences a long wet period rather than a brief flood, and that duration is what causes the damage.

By looking at a wet year rather than a normal one. The visible basin in an ordinary season is smaller than the area the water occupies when a substantial storm sequence fills it. Historical aerial imagery from wet years shows the real extent, and it frequently includes ground that has since been built on. That comparison is worth doing before making decisions about grading, outbuildings, or where to put anything that must stay dry.

Because almost none of it soaks in and none of it runs off anywhere. Caliche below thin soil limits infiltration sharply, and the tableland has no gradient to carry water away, so nearly all of a storm ends up standing somewhere. Twenty inches a year in this setting produces far more standing water than the same total in a place with slope and permeable soil. The volume is not the issue; the absence of any exit is.