"We have tried to work things out for the sake of our family but it has become apparent that our differences at this point are irreconcilable," Bach told TMZ.
He added that he and Bierk have been separated since April. For 2011, Bach says he and Bierk will "go our separate ways."
The two have two sons, Paris 21, and London, 14, and a three-year old daughter named Sebastiana. The entire family was featured on the VH1 reality show "I Married…" which chronicled the ups and downs of various celebrity marriages.