Chimney Hollow Reservoir
Spider Platform
Project Location
Larimer County, Colorado
Project Overview
Barnard contracted KEE to design and build a platform to carry a spider concrete placer and workers up a 45 degree dam plinth wall foundation as the placer pours the foundation ahead of itself.
All photos courtesy of Barnard
Engineered Platform for Concrete Placement on Steep Dam Foundations
Barnard contracted KEE to design and build a platform capable of carrying a spider concrete placer and workers up a 45-degree dam plinth wall foundation, allowing the placer to pour the foundation ahead of itself. The platform has a total capacity of 24,000 LB and a self-weight of 16,500 LB. It features manually adjustable legs to maintain a level surface while ascending slopes ranging from 18 to 45 degrees. Additionally, the platform is equipped with twin 8,250 LB line pull DC winches, a battery system, and load-sharing rigging, enabling it to pull itself uphill.
