A new 28,000-sq-ft park project is underway in downtown Houston. But right now, the only ones who can watch its progress are construction crews and the birds flying overhead. That's because this Sky Park is situated 12 stories up, sitting atop Concrete's Houston crews are working day and night shifts to build 36 floors in the 750,000-sq-ft office tower. They're busy maneuvering three tower cranes within one city block, along with EFCO self-climbing systems for the core walls.
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