Rappel Tower

Rappel Tower
Location: Crane Flat, Yosemite National Park
Total ft2: 1,200
Owner: National Park Service / Yosemite Fund
GC: National Park Service
Engineer: FBA Engineers
Architect: ConXtech


This National Park Service Heli-tack platform is a 4 level, 40 ft. tall training tower with a high angle training wall. It was built out of 50 tons of recycled and re-purposed steel. The rappel simulator is a 100% OSHA compliant training facility that allows fire fighters and rescue technicians to practice life saving techniques and maintain current qualifications in a safe and controlled environment.



The rappel tower is located at a remote high seismic and high wind exposure 8,000 foot elevation. Originally planned as a conventional steel structure, but over budget, the ConXR System proved to be an ideal solution not only due to the inherent seismic requirement, but cost efficiency and a short construction window. The ConX solution also included a unique pre-precast foundation utilizing ConXR connections used upside down. This structure was assembled by five iron workers and fully operable on day 2. The original schedule for conventional steel had been months. The ConX solution also saved the National Park Service nearly $100,000.