70 ILCS 1245/1
That every board of park commissioners shall have power to connect any public park, boulevard or driveway under its control with any part of any incorporated city, town or village, by selecting and taking any connecting street or streets or part thereof leading to such park; and shall also have power to accept and add to any such park, any street or part thereof which adjoins and runs parallel with any boundary line of the same, Provided, that the streets so selected and taken, so far as taken, shall lie within the district or territory the property of which shall be taxable for the maintenance of such parks: And provided further, that the consent of the corporate authorities having control of any such street or streets so far as selected and taken, and also the consent in writing of the owners of a majority of the frontage of the lots and lands abutting on such street or streets so far as taken, shall be first obtained: And provided further, that every board of park commissioners who shall have exercised the power hereinabove granted to select and take streets or parts of streets for the purpose of connecting any public park, boulevard or driveway under its control with any part of any incorporated city, town or village, shall have the power to abandon and surrender over any street or part of any street forming the whole or any part of such connection so made, to the proper corporate authorities of the city, village or town respectively, to which the control of any such street or part of a street so abandoned would revert, and for the purpose of connecting the same points or of making any portion of such connection, to select and take in place of any streets, street or part of a street so surrendered, any other and different streets, street or part of a street, which may be desirable and expedient for making the said connection; but such power shall only be exercised upon the consent first obtained of the proper corporate authorities to whom the control of the streets, street or parts of a street, so far as abandoned would revert, and of the proper corporate authorities having control of the streets, street or part of a street, so far as proposed to be taken, and upon the consent in writing first obtained of the owners of a majority of the frontage of the lots and lands abutting on the streets, street or part of a street so far as abandoned, and upon the consent in writing first obtained of the owners of a majority of the frontage of the lots and lands abutting on the streets, street or part of a street, so far as proposed to be taken.
70 ILCS 1245/1