After searching unsuccessfully for a model of a modern, city water tower, I built my own. This is an inexpensive project, which cost $5 to make. Nearly EVERY city in America has one or more of these towers. Check out my web page for a How To Article Jeff Augsburg & Concord R.R. (a fictional shortline in Central Illinois) http://www.pegnsean.net/~revnjeff
That came out pretty good! I've seen that style used a couple times in eastern Idaho. I want to build one also, but date it to a 50's style with a catwalk around it.