Through block public plazas shall be treated as two public plazas separated at a line drawn within 25 feet of the midblock line.

Where any building wall or walls adjoin a through block public plaza or through block portion of a public plaza and where such wall or walls exceed 120 feet aggregate length, a minimum 10 foot setback at a height between 60 and 90 feet is required for the full length of the building wall.

Through block public plazas shall contain a circulation path at least 10 feet in width, connecting the two streets on which the public plaza fronts, as specified in Section 37-723.