Chap. 0253 An Act to authorize the filling up of certain flats in the city of charlestown, and laying out streets over the same. Section 1. The city of Charlestown is hereby authorized to inclose and fill up, under the direction of the harbor commissioners, all of those flats included within the northeasterly side of the Boston and Maine Railroad location, and the present high-water line of the Charlestown shore, and the upland of the Commonwealth, said flats being known as the " flats in Prison Point Bay: " provided, however, that no portion of the flats owned by the Commonwealth shall be filled under this act, except with the consent of the governor and council, and upon such terms and conditions as they may prescribe ; and provided, further, that the said city of Charlestown shall make compensation from time to time for the amount of tide-water displaced by the filling up of said flats, under this act, the same to be ascertained by the harbor commissioners; such compensation to be made in such manner and at such times as may be directed by said harbor commissioners, according to the provisions of the fourth section of chapter one hundred and forty-nine of the acts of the year eighteen hundred and sixty-six. Section 2. The board of mayor and aldermen of said city of Charlestown, are hereby authorized to locate, lay out and construct such streets and highways over the territory thus filled up, as to them seems expedient: provided, however, that the same proceedings shall be had in laying out and constructing said streets, as are and may hereafter be provided by law, for the laying out of streets in the city of Charlestown. Section 3. The provisions of chapter two hundred and three of the acts of the year eighteen hundred and sixty-two shall not apply to any streets or highways laid out under the provisions of this act. Section 4. The provisions of this act shall in no way impair the legal rights of any persons or corporations whatever. Approved May 26, 1868.