Wisconsin Statutes Public Lands, Waters and Natural Resources (Ch. 23 to 33) § 27.12. Nonliability

(1) For cost of construction and maintenance. The common council may, by resolution make it a condition of the acceptance of any gift of lands for parks, parkways, boulevards or pleasure drives that the same shall be constructed and maintained solely at the expense of private parties until, by like resolution, the council shall vote to maintain them at the expense of the city.

(2) For damages caused by want of repair. Neither the city nor any such private parties shall be liable for any damage resulting from insufficiency in such construction, maintenance or repair of any parks, parkways, boulevards or pleasure drives owned by the city and located outside of its limits; but the city may cause any of them or any part of either of them which is not in good repair, to be closed to the use of the public until the same shall be put in good repair. At conspicuous points along any such boulevard or pleasure drive a notice shall be placed at intervals not exceeding one mile, painted in large, plain letters, as follows: “Any person using this drive assumes all risk as to defects therein”.