Impervious Surface layer which is a compilation of GIS layers with impervious surfaces which do not allow the water to percolate into the ground or the features support for run-off. Created from the C
The Impervious Surface raster layer represents impervious surfaces covering the Commonwealth of Massachusetts. The surfaces were extracted using semi-automated techniques by Sanborn Map Company from 5
In 2012, the impervious areas for the entire city were digitized using the 2007 and 2012 aerial imagery. The impervious layer is categorized into 11 types and can be symbolized based on these categori
