Method to predict seasonal high ground water table (SHGWT) [summary].
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2017-04-01
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Abstract:To help assure stability and long-term performance of pavement, a roadway’s base layer must
remain dry and be higher than the seasonal high groundwater table (SHGWT). Otherwise, the
roadway’s foundation can be weakened during certain times of the year, leading to rutting and
other roadway damage. SHGWT is defined differently across Florida’s five water management
districts and seven Florida Department of Transportation (FDOT) districts. Differences occur in
part because of variations in landscape, geology, and hydrology across the state, creating some
confusion about how best to estimate SHGWT.
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