Authorizing the revision of lines and grades on a portion of City Plan No. 270 by placing on the City Plan Sigma Way from Erdrick Street to Tackawanna Street, northeast of Vankirk Street, and Tackawanna Street from Vankirk Street to Sigma Way, northwest of Erdrick Street, under certain terms and conditions, including the dedication to the City of the beds of said Sigma Way and Tackawanna Street. — Open Common Ground