Most Outrageous Project

The photograph below is of a small mountain we cast in place in what could possibly have been the world's largest mold, made of 2 pound density, rubber coated EPS styrofoam. We made the mold in California, shipped it to Hawaii, and poured in hundreds of thousands of pounds of intrinsically colored grout over a matrix of rebar. The powder pigment alone required was some 17,000 pounds. The cast sculpture is nearly solid (except for three void vaults in the center) and measures 136 feet long by 22 feet high by 20 feet deep. It is part of an educational and interpretive Navajo Indian Memorial located in Na Aina Kai Botanical Garden and Sculpture Park which is slated to be open to the public in 2010.

Above is a detail photograph of the far right side. Note the color striations (called stratigraphic columnization) which aid in the convincing qualities of the simulated sandstone.  We achieved this by pouring 2 lifts of alternating colors each day for over a months time. Also worthy of noting is the 550 pound boulder which is precariously balanced over the edge (actually held in place by a series of steel rods that are hidden inside the cast).
Below you can see a partially de-molded section just to the left of the dead end canyon. Note the pick up truck in the background for a scale reference.

To the left is the stainless steel armature, being lifted with a forklift that we placed in the center of a separate mold that formed the 80,000 pound stone arch bridge. We cast this element 16 feet in the air nearing the end of completion.
 
Below are two detail photos of the finished stone arch bridge-the steel armature is now inside of it (for the next several thousand years). 

 

To the left is a detail shot of the far right side. Note the boulders on top.

 

 
To the left and below are images of the cave area-some 20 feet.