In a message dated 97-06-16 13:32:16 EDT, Ned Heite writes: << Does anyone have any information on turn-of-the-century roller coaster foundations? We have a known roller coaster site, and it stands to reason that the roller coaster frame would have required fairly substantial footers. It is clear that the structure was created of preassembled bents set up in sequence, so a firm and regular footing would be essential. The soil is a piedmont floodplain alluvium. >> Ned, in Clearfield, Utah (just south of us) exists one of only two roller coaster design and manufacturing companies in the world (the other is in Switzerland). I know one of the people who works at Arrow Dynamics, Inc. and will pass on your request to them. They may have some clues about this. Mike Polk Sagebrush Consultants, L.L.C. Ogden, Utah