Houston’s Impervious/Pervious Cover Ratio

Houston’s flood problems are more a distinctive feature of its topography, geography and the sheer magnitude of Harvey and less the result of the city’s limited zoning and land use regulations. A 2013 study of the city’s impervious/pervious cover ratio by the Houston-Galveston Area Council found that over 90 percent of the land within Houston city limits is generally considered pervious (water-absorbing green area or the like). Out of a total acreage of 383,737, 52,912 acres of Houston is parkland, according to The Trust for Public Land.

Houston’s Impervious/Pervious Cover Ratio – Image: Houston-Galveston Area Council – Data: Data sources: City of Houston; Google Earth 2011 Satellite Imagery

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