The Sun Prairie Water Tower is 60' high, rising from a two-foot rusticated stone foundation which is now almost entirely below the level of the surrounding plaza and street. The tower is topped with a steel tank which adds 30' bringing it to an overall height of 92'. Its outside diameter at the foundation is 25'. The tower itself has an inside diameter of 20'. The first 11' of rise (approximately) is cylindrical. Above this base, marked by a setback of about 8", the circumference of the tower diminishes slightly as it rises. The stonework is limestone with a pale yellow color and an even texture. There are five windows in the tower. The highest of these is near the top and faces north. Opposite this window, in the south side of the tower at the same level, is a door which gives access to a steel platform and ladder leading to the tank on the top of the tower. The windows are rectangular, approximately two feet wide and five feet high. The stone lintels and sills are of stone with some patching mortar applied to the sills. (Details rely on Historical Registration Documents.)
