washout

nouns

the channel or break produced by erosion of relatively soft soil by water
"it was several days after the storm before they could repair the washout and open the road"
washout
is a type of (narrower)
a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)
channel, groove
the erosive process of washing away soil or gravel by water (as from a roadway)
"from the house they watched the washout of their newly seeded lawn by the water"
wash, washout
is derived from
wash out
someone who is unsuccessful
dud, flop, washout