Section 30A. Any billboard, sign or other device, erected after August twentieth, nineteen hundred and twenty, without the authorization or permit of the outdoor advertising division, or of the outdoor advertising authority, or of the department of highways prior to the establishment of the authority, in cases where such authorization or permit is required, or maintained after said date in violation of any rule or regulation of the board, shall be deemed a nuisance. The outdoor advertising board shall have the same power to abate and remove any such nuisance as is given the board of health of a town under sections one hundred and twenty-three to one hundred and twenty-five, inclusive, of chapter one hundred and eleven, and the provisions of said sections shall, so far as applicable, apply in the case of a nuisance as herein defined. The remedy herein provided shall be in addition to any other remedy provided by law.