HomeMy WebLinkAboutLetter from EngineerErnest Kollar Engineers, Inc.
320 Main St., Suite 203
Carbondale, CO 81623
Phone (970)963-3223
Fax (970) 963-9395
July 16, 2015
To: Phil Long, United Gra%el
Re: Scale House Modular Foundation, Cerise Gravel Pit
Phil:
It would be acceptable to use the previously used jack stands to support a portion of the modular
frame. The jack stands are constructed with %" threaded rods inserted into 1 a" pipes, and
welded to a w -beam section with a 10 x 12 inch footprint.
At each end, the jack stands can be supported by the concrete footing. At intermediate locations,
the footprint shall be enlarged to a 16 x 16 inch area bearing on the gra%el, constructed with
c.m.u. blocks or a poured 8 inch thick concrete pad. It is my understanding a steel plate (314"
min. thickness) will be used bemeen the jack stands and supporting footings to spread out the
Toads.
The supports shall be spaced no greater than 10 feet. C.M.U. piers will be required at some
locations, since there are not enough jack stands. At these locations, the steel plate shall be set on
the ground to distribute the loads. The blocks shall be oriented ‘k ith cells. walls facing top to
bottom for maximum strength.
Should you have any questions, please call.
Sincerely,
EQ,^J,i'r" l<4349m
Ernest Kollar, PE