R.I. Gen. Laws § 45-36.1-4: Restrictions applicable to municipal public trust land.

Once a city or town dedicates property it holds as a public trust land, the land shall be perpetually protected from conversion to a use other than the use for which it was originally obtained and development that is inconsistent with its primary purpose as a recreation, open space, and natural resource land of the state and as a natural environment for the people of the state. Acceptable uses of the land so dedicated shall only be those that perpetuate outdoor recreation, open space benefits, and natural resource conservation on the land.