Authorizing the revision of lines and grades on a portion of City Plan Nos. 146 and 271 by striking from the City Plan and vacating Shackamaxon Street from Delaware Avenue southeastwardly to a dead end and reserving and placing on the City Plan a right-of-way for various utility purposes within the lines of Shackamaxon Street being stricken and by relocating portions of the southeasterly curbline of Delaware Avenue from Ellen Street to Shackamaxon Street, all under certain terms and conditions. — Open Common Ground