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-- ''''''.: ''''..::::.'„:-. ' i s I i Egneering, Inc. iiiii„.
P O „Bax Tard, Or • Phone : (5O. ) 6 2 086 . F ax (503) 68 3636 •
..
J 25; 2001:•.....:. X1=1 #.
0.01t)28 ••.
.Custom Deck & l=ance.
2084 SW PacificHwy:.:
...:Tigard OR 97 ::. .
.... Re: ••• Allowable. Soil: Beetin Preseure .
Rear::Deck' Remodel
8unkofske f esiden+ . .
.. 74580 $W Catalina Dave ...... •
.... . Tigard, OR::97223 .
Gentlemen :.
...Asp requested by •the. C ity;.of Tigard, we are;: submitting the fol mm
coentary: .... -
reg�irdling the aliawabl •
e.: soi value used for the .calculation o the allcaw .
p a' e ” :.eter, 5. 0" deep concrete : .'piers.:
tam
Based an the, geom o
.
use, these piers appear t ba
... found an competent native sorts which :in our:o inii
, .
. etry .of the fill •at the rear o t e
p .
on are ca able. of de to an„
2tl � p ..g
g 00 pounds per square foot: Please refer to t '
al1GW�l�le soils bearin velue
. :. :: attached Page 44.:for the a� c1at for these piers ..
T o 81Q... , VF: is condition using ano method, •we;:have.' atilized the Terizagi• ••:''
. equation f
r determiniing the exi allowable :faad c;�rrytng epacity Qf theme piers
Please refer to the appended calculatio an Page 44'4,
lf' you hav n , .
e:.any ftarther..questrians reg this matter. - please -da not hesitate to.contact
this off at • .your earliest conven . .
Sincerely, .
•.:.E: N.'.K e tchum, P.E. , .. . • E . :dhl ... .
anc
.. ' %: 44: q1411.ani. Dick &Fane.►. .oP • a** 8vadnW,P(9neur aoc .,, . ?+e0e of 1 •..•
9025 SW Center Street Tigard QR 97223 wwvw:nicolrengineerrno :
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ENGINEERING, INC. Job No.: 6, • ti C2Z.O. date: 1L
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9025 SW Center Street - PO Box 23784 Tigard, Oregon 97281 Phone (503) 620 -2086 • Fax; (503) 684-3636
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ENGINEERING, INC. Job No.: p tee Date: i
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9025 SW Center Street - PO Sox 23784 Tigard, Oregon 97281 • Phone: (503) 620 -2086 • Fax: (503) 684 -3636
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