Editing Half-pipe (section)

== Origin ==
In the early 1970s, swimming pools were used by skateboarders in a manner similar to surfing ocean waves. In 1975, some teenagers from [[Encinitas, California]], and other northern San Diego County communities began using {{convert|24|ft|m|sp=us|adj=mid|-diameter|order=flip}} water pipes in the central Arizona desert associated with the [[Central Arizona Project]], a federal public works project to divert water from the Colorado River to the city of Phoenix. Tom Stewart, one of these young California skateboarders,<ref name=":0">{{cite web
 |url         = http://www.calstreets.com/site/images/warren%20bolster%20gallery/pages/w.bolster_page_62_image_0001.htm
 |title       = Warren Bolster "Master of Skateboard Photography" Image: Tom Stewart.
 |author      = Warren Bolster
 |author-link      = Warren Bolster
 |publisher   = Concrete Wave Editions (February 2005)
 |ISBN        = 0973528613
 |url-status     = live
 |archive-url  = https://web.archive.org/web/20130623015541/http://www.calstreets.com/site/images/warren%20bolster%20gallery/pages/w.bolster_page_62_image_0001.htm
 |archive-date = 2013-06-23
}}</ref> looked for a more convenient location to have a similar skateboarding experience. Stewart consulted with his brother Mike, an architect, on how to build a ramp that resembled the Arizona pipes. With his brother's plans in hand, Tom built a wood frame half-pipe in the front yard of his house in Encinitas.

In a few days, the press had gotten word about Tom's creation and contacted him directly. Tom then went on to create Rampage, Inc. and began selling blueprints for his half-pipe design.<ref name=":0" /> About five months later, ''[[Skateboarder (magazine)|Skateboarder]]'' magazine featured both Tom Stewart and Rampage.