A Bay Area man who hand built a roller coaster for his 10-year-old son in the family's backyard says he couldn't think of a good reason to say no when the boy asked.
Now, six weeks and $3,500 later, Lyle Pemble has his own red roller coaster winding through the canopy of his backyard trees.
His father, Will Pemble, an e-commerce consultant, began blogging and posting YouTube videos of his engineering feat in October, when he first tested a single cart on the twisting 180-foot coaster behind his home in Orinda, which is east of Berkeley.
"I started building the coaster because, Lyle, my son asked me if we could, and I couldn't think of a good reason to say no," Pemble told KPIX-TV.
The idea of building a backyard roller coaster was spawned a family trip to
It wasn't long before Pemble, 50, and his son had mapped out the project, purchased the large amount of PVC pipes and lumber, and started work.