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The main pentagon, hexagon and half hex components were trucked to the site and set in place. |
| Window frames and electrical fixtures were cast right into the pieces. To the right is a half hex first level casting having the lower portion of a window frame cast in at the factory. | ![]() |
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The units fit neatly next to each other. |
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Start Tour | Precasting | Forms Details | Site Prep | Assembly | Joining Sections | Assembling Scoop | Waterproofing | Backfilling


