confluence park, san antonio river foundation

press to zoom

press to zoom

press to zoom

press to zoom


310 West Mitchell Street San Antonio, TX


K&A Scope: 

3 each “Petal” formwork for concrete castings

Materials Used:

FRP with 2” thick balsa core, steel trusses



Engineer, fabricate and deliver all concrete petal FRP formwork. The three petal’s formwork was fabricated off of 5-axis CNC milled forms. After milling the foam forms, a 2” thick composite structure composed of inner and outer layers of fiberglass composite with a central core of balsa wood was applied. Each form had steel trusses and back forms as needed.


Client: SpawGlass Contractors, Inc.

Architect/Artist: Matsys Design