Design concept chosen for Bay Bridge house project

The visionary trying to build a house from remnants of the Bay Bridge’s old eastern span has yet to salvage the pieces, but he has selected a tentative design for the project.

David Grieshaber, 44, and his wife originally intended to keep a design contest local for their environmentally conscious Bay Bridge House, but, “The demand for it internationally was so large that we couldn’t resist,” he said.

On his website www.BayBridgeHouse.org, Grieshaber announced the design winners Wednesday — Lee Ka Chun and Ngan Ching Ying of the Royal Danish Academy of Fine Arts, Schools of Architecture, Design and Conservation School of Architecture.

Their “Hanging House” design entails hanging components of the house from the bridge section and adding waterscape on top to control the environment underneath. While too complicated to construct in reality, Grieshaber says, the design will be incorporated into a proposal he hopes to present to the demolition contractor, Caltrans and other Bay Bridge authorities in the next month and a half.

“It’s just a preliminary idea. We’ll take that design and scale it back to fit in development regulations and local zoning requirements,” he said. “Parts of it will be utilized, but it probably will not look anything like it in the end.”

The design winners were selected out of 73 student entries from 37 architecture and design schools worldwide. They received a trophy made from a piece of the infamous S-curve from the old Bay Bridge and offers to intern as co-architects on the project.

While demolition of the old span is slated to begin this week, the computer engineer and entrepreneur from Brisbane isn’t worried that acquiring bridge pieces will become a race against time. He says he only needs one-fifth of a section to realize his vision.

“It’s going to happen,” Grieshaber said. “I thought the demolition would have started already, and I’m looking forward to actually seeing it come down.”

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