(a) No title or right of possession to any alley, street, or public park, or any portion thereof, in any city or incorporated town in this state shall or can be acquired by adverse possession or adverse occupancy thereof. The right of the public or of any city or incorporated town in this state or of the authorities of any such city or incorporated town to open or have opened any alley, street, or public park, or parts thereof, shall not be defeated in any action or proceeding by reason or because of adverse possession or adverse occupancy of the alley, street, or public park or any portion thereof where such adverse possession or occupancy commenced after the passage of this section.
(b) However, all deeds or conveyances to any portion of any lands dedicated to public use as a street or thoroughfare in any city of the first or second class made by authority of the city council of the city during and prior to the year 1924 shall be confirmed and validated, subject, however, to the payment of any purchase money that may be due and owing therefor. No such deed or conveyance made as aforesaid shall be impeached on the ground that it was made without authority of law. No such deed or conveyance shall be valid if any street or boulevard is thereby reduced in width to less than fifty feet (50').