They sweep the roads to get the salt mix up? Down here it washes off
with the rain or
melting snow, but I've never seen it swept.
I am sure much of it washes away into storm drains but every spring the
town and state highway departments are out with the big street sweepers,
picking up what is left. It's recycled and used again.
In areas where you get a lot of snow the first thing that is done in a
storm is treating the roadways, overpasses and bridges with treated
sand. Bridges and overpasses are important because they will freeze
before the roadways. Then, as it snows the mess is plowed to the side
and the treated sand is applied again. This will happen many times
during a major storm and the sand and salt in the plowed snow piles
stays there until there's a major melt. We still have 3 4 foot snow
banks on all the roads up here from the storms we had in January and
February. The corrosive sand and salt mixture just sits there for weeks
and months.
I think Greg forgets that I spent three winters living in Florida where
there were many bridges and overpasses. I never saw sand blasting and
repainting of any of them. I am sure it happens from time to time but
not to the extent that you see in the northeast. During the summer
months there are crews out constantly sand blasting and repainting the
bridge and overpass structures.
No matter how severe the environment is for infrastructure in the
northeast, Gregg assures us it is far, far worse in SW Florida. Well, of
course it is.
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