Soils can be eroded by flowing water. Erosion can occur underground if there are cavities, cracks in rock, or other openings large enough so that soil particles can be washed into them and transported away by seeping water. Then this type of underground erosion progresses and creates an open path for flow, it is called “piping.” Preventing piping is a prime consideration in the design of safe dams.
There appear to be a few cracks in the dam.
In today’s Kansas City Star:
Three GOP lawmakers call on Gov. Greitens to resign amid blackmail allegations
By Bryan Lowry And Jason Hancock
January 16, 2018 01:13 PM
At least three Republican lawmakers are calling for Gov. Eric Greitens to resign after allegations that he blackmailed a woman in an effort to keep her quiet about an extramarital affair….
Should have paid more attention to that infrastructure, eh?
Oh, my. (January 11, 2018)
Oh, my – part 2 (January 11, 2018)
Oh, my – part 3 (January 11, 2018)
אַ שאַנדע פֿאַר די גוים and *IOKIYAR (January 11, 2018)
Oh, my – part 4 (January 11, 2018)
Oh, my – part 5 (January 11, 2018)
Oh, my – part 6 (January 12, 2018)
Sen. Denny Hoskins (r): not exactly a ringing endorsement (January 12, 2018)