Ride company puts loops on wooden coasters HAYDEN, Idaho, Oct. 26 (UPI) -- An Idaho roller coaster company said plans to add loops to wooden coasters in Texas and Missouri have increased business. "We have plenty of work," said Fred Grubb, owner of Rocky Mountain Constructin of Hayden. Our docket's full. We'll probably continue to expand. Grubb said his company first gained attention for restoring and redesigning the Texas Giant coaster at Six Flags Over Texas, the Los Angeles Times reported Friday. He said calls have coming from theme parks since Rocky Mountain announced plans to add a barrel roll to the 1992 Rattler wooden coaster in Texas and to build a triple-inversion wooden coaster called Outlaw Run at Silver Dollar City in Missouri. Ohio's Kings Island theme park installed the Son of Beast coaster, the world's first looping wooden coaster, in 2000, but the loops were soon removed due to malfunctions and the coaster was shut down permanently in 2009.