[Tfug] OT: Is this our Harry McGregor?
Bexley Hall
bexley401 at yahoo.com
Tue Dec 8 14:48:35 MST 2009
Hi Keith,
> It has always been my understanding the water gets under
> the black top and freezes causing it to slit and
> degrade. It would be interested to hear from
> others.
But isn't frost line just a few *inches* here? I.e., I
would have thought the road bed would be think enough
in and of itself to serve as an insulator.
Note irrigation lines are only down ~6 inches...
[politics elided]
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