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CT ENGINEERING
180 Nickerson St.
INC
Suite 302
Seattle,WA 98109
(206)285-4512(V)
(206)285-0618(F)
asolomon@ctengineering.com
BULLETIN
Date: April 21,2016 Number:CT-03 Project#: 15238
Project Name: Polygon at Bull Mountain (River Terrace SF) Attached: CT-03.1
Subject: Concrete Stem Wall Height
Drawings Affected:
Description/Action:
This bulletin provides response to RFI, design clarifications and/or variation requests for the
`Polygon at Bull Mountain (River Terrace SF)' project located in Tigard, Oregon.
It's our understanding that there are some site conditions which require the concrete stem wall to
exceed 4'-0" in height. This is an acceptable revision for stem walls up to 8'-0" in height provided
the differential height between exterior finish grade and the soil elevation in the crawlspace does not
exceed 2'-0" as shown in the attached detail. Note that either finish grade or crawlspace soil
elevation may be at a higher elevation as long as the differential height between the two is not
greater than 2'-0".
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04/21/2016
CALL WITH ANY QUESTIONS
Issued by: Arnold R. Solomon Date: April 21, 2016
Distribution:
Contact Information:
Chris Walther Polygon Northwest Company
Jason Canfield Polygon Northwest Company
Rick Tolleshaug Milbrandt Architects
Alexia Fukui Milbrandt Architects
R:\15238 River Terrace\Bulletins\15238_2016.04.21_CT03_Concrete Stem Wall Height.doc
Structural Engineers
CT-03.1
BALANCE PER 7/S6.0
EXTERIOR
1 ##4 HOR. CONT. AT
FINISH GRAD = —
`
=III—III—III=1I d
111=111=11E111E °. a
CRAWLSPACE
. a o
II
X a
00 ° ` I I I��=1 11=1 11=
IF
IIIIII
4c, ° . #4 VERT. 0 18" O.C.
W/ STD. HOOK
4
•
a
11GHTLINE DRAIN RE: ARCH. "'—"'—"'
8"
FOUNDATION DRAIN RE: / /
ARCH. 1'-4" (1) #4 HOR. CONT.
CONCRETE STEM WALL