With its long history of groundwater extraction, the Houston area found itself with a sinking problem, quite literally. Because of subsidence, the ground had settled as much as 10 feet in some areas of the Houston metropolitan area. "Houston is already subject to flooding so having anything settle and get any lower just makes everything worse," noted Misti Burkman, PE, BCEE, an environmental engineer and building information modeling (BIM) manager with CDM Smith.
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