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The Fairplex Garden Railway features a working dam. The dam is in the southeast section of the layout and is called "Hoover Dam." Water features play a significant role in the display as over 12,000 gallons of water are used in various lakes and streams.

This little waterfall is tucked into a 19th century themed area. Unfortunately, its in a location on the backside of the display that is virtually impossible for the public to see.