There are less than 20 bobsleigh tracks in the entire world approved by the sport's international governing organization.
The 2002 Olympic track in Park City, Utah, is the southernmost track in the world and is designed for bobsleigh, luge and skeleton (a fast winter sliding sport) events. Engineers faced several challenges during construction of the $25 million venue. To build the smoothly curved walls engineers used shortcrete, a form of concrete that is sprayed onto a reinforced steel structure containing refrigeration tube. To create the ice surface, the concrete is cooled to -12 degrees F (-11C) and water is sprayed on until a 2-inch layer of ice is formed. The $25 million cost includes 297,000 watts of track lighting, 62 hydrants, 24 cameras and eight scoreboards. Many diverse engineers were working together to build the skeleton track such as Civil engineers, Electrical engineers, and Materials engineers.
The International Bobsleigh & Skeleton Federation provides information on bobsleigh tracks, sleighs and athletes.
Wikipedia includes a current list of all bobsleigh, luge, and skeleton tracks.