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<br /> Page 4 - R120-10815
<br /> , aa .�
<br /> ' Me understanE the proposed hwse will be appro,ciautely 36' x 5�' in plan
<br /> �' �irr�nslons with an attacheG 32' square garage. Tne Aouse ltself wtll be a
<br /> tarstory structure with the loMer floor being expased tor►ards the lake.
<br /> � The lower floor will be at aDa.�t elevatian 67' ►rhile tne main Tevel �ill be
<br /> � at elevatlon 7� 1/2', Me anticipaie relatively ligt�t structural loads.
<br /> ~ Foundation Recornnendations
<br /> It is our opinion that Lhe proposed house can be supported on conventional
<br /> spread footing foundations. We recoamend carrying all footings at least
<br /> . through the topsoil layer. Exterior footings should be taken a mtnimum of
<br /> � 4' below grade for frost protectlon. If the garage is unhea.ed, we
<br /> .. =�.�...�---_
<br /> ' recommend that these foctings extenC a distance of 5' belcw qrade. Footings P ;` `° _, � u � ' `
<br /> supported immediately bela+ the topsoil can De designed tor a loading of � '", � d ' '�,' ''
<br /> �, �y.
<br /> 20U0 psf. The stiffer soil encountered bela+ a depth of about 2' to 3' � " ��
<br /> , 'f '��,d ta� &�..:�::�,.,
<br /> � below grade can support a loadtng of up to 3000 psf. The soil will provide �
<br /> . a factor of safety of about 3 against an actuat s�ear failure. We estimate
<br /> " settlement would be less than 1/2".
<br /> ~ 7h� foundattons can also De supycrted on cortpacted fill. WF>re footings are
<br /> ,_ supported on fill. the excavation and compacted fili should extend beyond
<br /> the edge of footings a distance equal to the depth of compacteG fill Deneath
<br /> " the footings. The topsoil should be removed Defore the fill is placed. 7he
<br /> '°' fill should be to�acted to a minimum of 95X of standard Proctor density
<br /> M (RSTM: D 698-78).
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