Okay this is the last video on the hazards of soil mechanics for a while :)
Expansive soils cause more property damage per year than earthquakes, floods, hurricanes, and tornadoes combined. Expansive soils are a slow-moving geologic phenomenon, which makes them not very news-worthy. However, they still cause a tremendous amount of damage to buildings and the public infrastructure we rely on every day.
USGS Map of Expansive Soils: https://ngmdb.usgs.gov/Prodesc/proddesc_10014.htm
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