Clevelands Ice dam release of flood water from the esk valley.

My earlier post on a possible reason for major flooding of the Cleveland beck valleys - reported in the following link http://historyofabeck.blogspot.co.uk/2013/12/storregga-slides-stunami-theory.html 
now look to be unlikely, ive had some great advice on the deposits, and most seem to agree the deposits are most likely the result of fresh water flooding .
I have another theory, could there have been an ice dam at the mouth of the western end of the Esk valley, could this dam have held water in the esk valley while the lower lands of what is now south west Cleveland were repopulated at the end of the last ice age, only for the ice dam to fail and release a devastating flood ?

The lowlands to the north west of the mouth of the of the Esk valley, do look to have a ripple effect in the landscape; gradually getting less evident as it reaches what would have been the large natural drainage channels of the Triassic bedrock beck valleys of south west Cleveland, that would have then drained into the Tees as it was then.