HomeMy WebLinkAboutCT 73-18; Rancho Del Ponderosa Unit 1 Lots 1-63; Soils Report; 1976-02-13WOODWARD-CLYDE CONSULTANTS
CONSULTING ENGINEERS. GEOLOGISTS AND ENVIRONMEN ‘AL SCIENTISTS
WESTERN REGION 3467 Kuttz Street February 13, 1976
San DIego Project No. 72-253
California92110 Phone (714) 224-2911
Ponderosa Homes
2082 Business Center Drive, Suite 100
Irvine, California 92664
San LlG&,, c,j;r',
Attention: Mr. Terry Teeple
FINAL REPORT OF ENGINEERING
OBSERVATION AND COMPACTION TESTING
RANCH0 DEL PONDEROSA UNIT NO. 1
AND OFFSITE FILLS
(CARLSBAD TRACT 73-18)
LOTS 1 THROUGH 63
CARLSBAD, CALIFORNIA
In accordance with your request and our agreement dated October 24,
1975, we have provided soil engineering services in conjunction with the
grading of the subject site. These services included:
(1) Engineering observation of the grading operation.
(2) Observation of the removal of loose surface and alluvial soil where
encountered prior to placing fill.
(3) Observation of the removal of potentially expansive soil from rough
lot grade where encountered and replacing it with nonexpansive soil.
(4) Taking field density tests in the fill placed and compacted.
(5) Performing laboratory tests on representative samples of the material
used for fill.
(6) Periodic engineering and geologic inspections of the cut slope
areas.
General Site Grading -
Site preparation, compaction, and testing were done between November 12,
1975 and January 27, 1976 in accordance with the "Specifications for
Controlled Fill" in the Woodward-Gizienski & Associates report entitled
"Ranch0 De1 Ponderosa Development (Weigand Property) San Diego County,
California", dated September 13, 1973.
Ponderosa Homes
Project No. 72-253
FebYuary 13, 1976
Page 2
Fill was placed, compacted and tested on Lots 4 throu<h 53. The grading
operation essentially consisted of excavating and compacting loose
surface and alluvial soils where encountered, undercutting expansive
soil encountered at finish grade and replacing it with compacted nonexpansive
fill, and making design cuts and fills in accordance with grading plans.
This included the placing of fills adjacent to the site in the area of
Unit 2 and Constructing a large fill in a canyon area in future Unit 3.
As the site grading progressed, the compaction procedures were observed,
and field density tests were made to determine the relative compaction
of the fill in place. Field observations and field density test results
indicate that the fill has been compacted to 90% or more of maximum
laboratory density. The approximate locations of field densi,ty tests
and the limits of compacted fill have been recorded on a copy of the
grading plan for reference. The results of field density tests and of
relative compaction, expressed as a percent of maximum laboratory
density, are given on the attached forms.
Laboratory tests to determine moisture-density relationships, maximum
dry density, optimum moisture content, grain size distribution, plasticity
characteristics, and strength characteristics were performed on representative
samples of the material used for fill. The results of laboratory tests
are given on the attached forms.
The following lots are fill lots either as a result of design fills
as a result of undercutting at finish grade: Lots 4 through 15 an 17 through 53. Q
The following lots are cut lots at the end of the grading period: Lots
1, 2, 3 and 54 through 63.
Lot 16 is a cut-fill lot.
Special Finish Grade Treatment
During the grading operation certain lots were specially treated to
provide a specified depth of selected soil at rough grade.
laboratory tests and visual inspection indicate that nonexpansive fill
was placed within 3 feet of rough grade on all fill lots and on the fill portion of the cut-fill lot noted herein. On Lots 4 through 7, 9 through
15, the cut portion of 16, 20 through 26, 36,37 and 38 potentially
expansive soil was excavated and replaced with nonexpansive fill to a
depth of 2 feet below rough lot grade and within the limits of the
entire level lot.
WflllllW~RD.CLVl)C CONSMVANTS
Ponderosa Homes
Project No. 72-253
- February 13, 1976
Page 3
Rough lot grade is defined as that grade set in the field by the grade
checker from reference stakes established by the surveyor and represents
rough grade at the time we were inspecting the removal and replacement
of, expansive soils. Likewise the depths of undercutting of expansive
soil and/or depths of placement of nonexpansive soil were in accordance
with measurements made by and grades set by the contractor's grade
checker.
A visual inspection of cut Lots 1, 2, 3, and 54 through 63 at completion
of grading indicate that potentially expansive soil is not evident at
rough grade surface.
Geologic Inspections
Geologic inspections were made of the cut slopes on site during the . grading period. The purpose of these inspections was to determine
whether any adverse geologic conditions are apparent in the slope. The
cut slope bordering Olivenhain Road was examined on November 17, 1975 by
an engineering geologist of our firm. This inspection revealed that the
slope is a combination cut-fill slope with an approximate 2 to 1 (horizontal
to vertical) inclination and approximately 30 feet high at the maximum
point. The cut portion of the slope IS composed of interbeddea greenish-
grey claystone and siltstone with some sandstone similar to materials
found in Tertiary sediments common to the area. The orientation of the
strata in the slope was essentially horizontal and jointing and fracturing
were not intense. No clay seams or groundwater was noted in the slope.
There were no apparent geologic conditions exposed in the slope that are
considered, in our opinion, adverse to the relative stability of the
slope.
The cut-fill slope between Lots 9 - 10, and 7 - 8 was examined on December
12, 1975. This slope is approximately 15 feet in height oriented in an
east west direction and inclined on 2 to 1. The slope generally incorporated
interbedded sandstone and claystone of Tertiary age. A thin and very
stiff, discontinuous clay seam was noted in the approximate mid-height
of the slope. Measurement of the orientation of the seam revealed that
it varied from horizontal to approximately 2 to 3 degrees to the west.
The compacted fill portion of the slope thickens rapidly towards the
west and the slope becomes a fill slope at the western edge of Lot 8.
It is our opinion that this compacted fill provides a resisting mass
against possible movement in a westerly direction. We have reviewed our
previous slope stability analysis taking into consideration the presence
of the clay seam. It is our opinion that the presence of this seam does
not significantly effect the relative overall stability of the slope.
WOOOWNlO-CI,VDC CONSMTIINIS
Ponderosa Homes
.Project No. 72-253
. February 13, 1976
Page 4
A final inspection of the subdivsion was made by the project engineer on
January 23, 1976. This inspection revealed several small wet areas in
the slope; however, no free seeping or standing water was noted. The
most noticeble wet area was at the toe of the slope at the rear of Lot
14. Here the wetness extended approximately 6 inches above the lot
level and generally covered an area approximately 5 feet wide by 15 feet
long paralleling the slope. A toe drain consisting of a perforated pipe
placed in a shallow trench at the slope toe and embedded in a filter
material may be employed to help minimize the problem. This system
could exit between lots to a curb outlet. Details of drain construction
can be issued upon request. The wet area may dry up in time and depending
on construction schedule, it may be convenient to observe the seep for a
period of time before making a decision to inctall the drain.
Ept&ation Recommendations - All Lots
(1) Foundations for single or two-story residential structures placed
on nonexpansive undisturbed soil or nonexpansive properly compacted fill
may be designed far a bearing pressure of 2,000 psf (dead plus live
loads) at a depth of 12 inches below compacted fill or undisturbed cut
lot qrade. Footings should have a minimum width of 12 inches. The
bearing pressure may be increased by one-third for loads that include
wind or seismic forces.
(2) Structures that will not tolerate differential settlements (such as foundations, swimming pools, concrete decks, walls, etc.) should not be
located within 5 feet of the top of a slope. Footings located closer
than 5 feet from the top of a slope should be extended in depth until
the outer bottom edge of the footing is 5 feet horizontally from the
outside face of the slope.
(3) Itis recomnlended that expansive soils be considered in the design
of other structures that may be placed on the lots below grade such as
swimlning pools.
Limitations and Backfilling
The elevations of compaction tests shown as finished grade (FG) tests
correspond to the elevations shown on the grading plans for "Carlsbad
Tract No. 73-18, (Ranch0 De1 Ponderosa) Unit No. 1" dated August 15,
1974, prepared by Rick Engineering Company, San Diego, California.
Elevations and locations shown in this report are based on field surveys
established by others.
WOODWARD~CLVDE CONSlll.TANTS
Ponderosa Homes
Project No. 72-253
- February 13, 1976
Page 5
This report covers the fill placed under our observation during the
dates specified herein. Additional fill placed after these dates, as
well as the backfill in utility trenches located within 5 feet of a
building and greater than 12 inches deep, or any trench 5 feet or more
from a building and in excess of 5 feet in depth, should be compacted
under the observation of this office and tested to assure compliance
with the earthwork specifications for the project. This office should
be contacted at least 24 hours prior to backfilling operations. Utility
service trenches within 5 feet of a building that are perpendicular to
the building footings and are less than 12 inches wide and less than 3
feet deep are not subject to this recommendation.
The inspections of foundation preparation, types of materials and soil
placement and compaction as well as tests of compaction made during the
period of our services on the subject site were in accordance with the
local acceptable standards for this period. The conclusions or opinions
drawn from the tests and site inspections apply only to our work with
respect to grading and represent conditions at the date of our final
inspection.
We will accept no responsibility for any subsequent changes made to the
site by others or by uncontrolled action of water or by failure of
others to properly repair damages caused by uncontrolled action of
water.
WOODWARD-CLYDE CONSULTANTS
LJL/JLH/RPW/EHP/we
Attachments
(1) Ponderosa Homes, Irvine - Attention: Terry Teeple (4) Ponderosa Homes, San Diego - Attention: Karl Kreutzer
(1) Rick Engineering Company
WOOOWARD CLVOC CONSIIIIANIS
COMPACTION TEST RESULTS
JOB NIlME RANCH0 DEL PONUEROSA UNIT NO. 1 DI\TE REPORTED 12-g-75
JOB NUMBER 72-253
DATES COYERED November 12, 1975 Through Decelnber 4, 1975 PAGE 1 OF 3
- YOWTU". VllLD L*.O11*m"" "ILLIIYK DITl 7r.I RcTLar LOEAIIO" ILIYATIOH CO"Tm4, DIUSIT" DIH,lrv coY.IcTIoY HUMBLR or or71111 * DllUT. PC, PC, x 0. LA.. DCY,. -~__ -__ -___
!OV 12 1 LOT 27
2 29
98’ 16.9 101.7 109.5 92.7
98' 17.6 99.5 109.5 90.8
100' 16.9 99.6 109.5 90.9
100' 19.0 101.9 109.5 93.0
101.3 109.5 92.9
103.3 109.5 94.3
100.3 109.5 91.6
163.9 113.5 91.5
102.3 113.5 90.1
104.0 113.5 91.6
103.8
105.2
103.1
104.9
105.2
99.0
103.5
104.9
104.3
113.5
113.5
113.5
113.5
113.5
109.5
113.5
113.5
113.5
113.5
109.5
113.5
113.5
113.5
113.5
113.5
122.0
122.0
111.5
111.5
111.5
113.5
113.5
113.5
113.5
113.5
113.5
113.5
91.3 .~'
92.7 ."
90.9
92.4
92.7
y.; :
;2:4
91.9
91.9
.91.6
91.5
93.3
33.5
92.5
93.8 94.3
91.9
90.8
91.5
92.2
91.4
90.7
92.1
92.7
91.3
91.6
92.7
3
4
28
30
LOT 27
29
28
IOV 13 5
6
102' 17.6
102' 15.6
7 104' 16.9
104' 15.6 a
9
IO 10
.nv 14 11 ~.__
i:
30
29
31
107' 18.3
107' 16.9
110' 17.6 LOT 23
30
32
29
31 112' 16.9
110' 16.3
110' 19.0
112' 15.6 14
15
.nv 17 lG LOT 33
17 32
112' 15.6
115' 16.?
115' 16.9 13 30
19 28
20 29
21 31
115' 17.G
117' 19.0 1
117' 16.9 1
117' 17.6
118' 16.3
120' 15.6
120' 16.3
120' 15.6
3.6
3.0
6.9
5.6
6.3
6.3
04.3
00.3
1 03.9
1 06.0
00.5
05.0
06.6
15.0
1 12.0
II 31.2
22 33
23 44
'iv 12: 24
25
26 27
24
LOT 43
32
30
28
29
30
31
32
101.9
102.8
103.8
26 110'
27 113'
LOT 26 115' 18.3
27 118' 18.3
103.0
104.G
'105.3
103.6
104.1
105.2
COMPACTION TEST RESULTS
JOB idAME RANCH0 DEL PONDCROSA UNIT NO. 1 DATEREPORTED 12-8-75
JOQ NVMBER 72-253
DATES COVERED November 12, 1975 Through December 4, 1975 P.&GE 2 OF 3
YD3IT”II .ICLD lA.O”lro”” “ILAll’ll DATE nsr RE,Z,T LDCAllON ELE”*ItOH COUTlNT DIN*,,” DIH.I1T COYCAnlOY H”“eER or TrsT x 0”” WT. KP Y 0, LA.. DC”.. .--
AOV 20 39
40
LOT 33
44
8
123'
123'
123'
126'
126'
126'
126'
17.6
~16.3
9.9
13.0
11.1
9.3
10.5
126'
128'
128'
128'
128'
123'
18.3
19.0
16.3
15.6
16.9
19.0
120' 9.9
123' 12.3
125' 11.7
127' 12.3
127' 12.3
130' 14.3
130' 13.0
133' 14.3
133' 14.3
FG 135.8' 135'
137'
FG 138.8'
14.9
14.3~
12.3
15.6
14.9
19.0
17.6
15.6
15.6
14.9
16.9
18.3
17.6
18.3
14.9
17.6
111.5
111.5
122.0
122.0
122.0
122.0
122.0
111.5
111.5
111.5
111.5
111.5
111.5
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
111.5
111.5
111.5
111.5
111.5
111.5
111.5
111.5
111.5
111.5
111.5
91.2
92.6
91.8
93.2
91.7
92.6
91.4
93.0
91.5
93.8
91.9
92.6 :~'
91.3
95.0
93.5
96.5 1
94.3 :
94.7
92.1
91.8
90.6
91 .o
91 .o
92.6
92.7
92.7
92.2
92.0
93.3
92.7
92.5
93.6
94.1
93.0
93.4
94.0 94.1
95.9
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
01.8
03.3
12.0
13.9
12.0
12.9
11.6
03.8
02.1
04.7
02.5
03.3
01.8
10.3
07.7
11.0
03.5
41
42 34
43 32
44
45
30
28
JOV 21 46
47 LOR 8
29
31
33
40
49
50
51
'1OV 22 52
53
54
55
LOT 20
19
21
18
20
21
:i
18
109.0
106.0
105.7
104.2
104.7 60
~lV.24 61 LOT 19
62 17
104.5 106.4
106.6
106.6
1"
1; G4
65
66
18
a
30
33.4'
29'
30'
30'
30'
1 28'
130'
130'
133'
133'
135'
135'
106.0
102.5
104.0
103.5
103.2
67
68
59
32
34
LOT 45
44.
42
104.5
105.0
103.8
iOV 25 70
71
72
73 ‘I 3
45
104.1
104.9
105.0
107.0
74
75
76
42
44
COMPACTION TEST RESULTS
JOB !‘!AME RANCH0 DEL PONDEROSA UNIT NO. 1 0*7E~EPoRTED 12-e-75
JOB NVMBEH 72-253
DHESCOVER~~ November 12, 1975 Through December 4, 1975 PAGE 3 OF 3
-
c.ATI TWST RK,I,T LOCATION YOI.I""I .llLD LA.Oll*m"" "lLA7,"1 LL~YIIIOH COUllNT DIHBITI t,X",,W *Y"Bcrl OF OF TLLlT * D"" WT. CoYP.cr,aN PC. v. 0, LA.. ImY., -"_
li:C 3 77 LOT 20 FG 135.0' 13.0 106.9 115.0 92.9 71: 2 'I FG 132.6' 13.0 103.5 115.0 94.2 79 FG 131.6' 14.3
30
104.6 115.0 90.9
:: FG 128.9' 12.3 106.0 115.0 92.1
::l 26 125' 11.7 103.7 115.0
82
94.4
27 FG 127.0' 11.7 110.6 115.0 96.2
IIEC 4 83 LOT 28 FG 128.2' 13.0 107.0 115.0 34 93.0
29 FG 131.2 13.0 1p7.1 115.0 93.1 35 132' 14.9
86
105.9 115.0 92.1
Sk FG 128.2' 13.6 105.8 115.0 92.1
87 25 FG 127.0' 11.7 107.3 115.0 93.5
.,,
COMPACTION TEST RESULTS
JOB NaME RAKCiiO DEL POCDEROSA UNIT #l DATEREPORTEO February 13, 1976
JOB NUMBER 72-253
D~T~BC~XRED December 4, 1975.through January 23, 1976 PAGE 1 OF 3
LA~ORATOW “ILAIIYI DIH.IT* COY*AcTIOH PC, % or LAB. DKH..
DEC 4 88 _- E9
LOT 26 FG 126.8'
FG 134.4'
133'
133'
136'
136'
11.1 105.2
13.0 106.0
13.0 104.8
12.3 105.5
11.1 104.0
13.0 105.8
FC 138.1'
139'
142'
FG 140.2'
138'
138'
138'
141'
141'
141'
141'
12.3 107.3
13.0 105.9 14.3 107.0
11.7 106.6
13.0 106.9
12.3 105.0
12.3 106.0
12.3 106.9
14.9 104.8 11.7 104.3
12.3 106.9
144' 13.0 104.6
144' 11.7 105.0
144' 12.3 106.2
145' 14.3 106.3
148' 13.6 104.1
148' 15.6 110.2
148' 14.3 105.2
148' 13.6 104.8
151' 12.3 103.8
151' 16.3 106.1
151' 16.9 109.9
151' 12.3 106.3
151' 13.0 104.9
154' 11.1 106.9
154' 11.7 105.1
154' 11.7 104.2
154' 13.0 105.7
154' 13.0 107.8
154' 12.3 106.0
158' 11.7 105.0
158' 11.1 105.9 158' 12.3 108.5
158' 12.3 106.2
158' 11.7 106.0 158' 11.1 111.9 158' 13.6 106.9
.91.5
92.1 2:
5:o
5.0
5.0
z;
35
34
SO
91
92
91.0
91.7
90.5
93 32 91.9
93.4
92.0
93.0
92.6
92.9
91.4 .._
92.2
93.6
DEC 17 94
95
96
97
115.0
LOT 33
35
115.0
115.0
115.0 36
34
51
4453
ii I
11'
11,
11,
11,
5.0
E
it;
E
4:o
98
99
100
101 52
102 42
103 44
124 46
91.9
91.6
93.7
DEC 18 105 __- 106
107
108
LOT 41 114.0
114.0
114.0
114.0
114.0
114.0
114.0
114.0
114.0
,113.5
113.5
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
91.8
92.1
93.3
93.4
109
110
111
112
113
114
115
116
DEC 19 117 LOT 45
118 40
119 42
91.4
96.6
92.4
92.0
91 .o
93.5
96.8
92.5
92.2
93.0
91.5
90.6
91.9
93.7
92.3
44
46
:i
121
122
123
124 49 115.0
115.0
115.0
115.0
91.2
92.2
94.4
51
i:
12G
127
128 92.5 2
47
115.0 92.3
115.0 97.2
115.0 93.0
129
130
COMPACTION TEST RESULTS
JOB NI\ME RAijCiiO DEL PONDEROSA UNIT #l D*TEREPORTED February 13, 1976
JOB NUMBER 72-253
D~TESCWERED December 4, 1975 through January 23, 1976 PAGE 2 OF 3
DATE TZST RETEST LOCAT,ON ELL”*TION HUMBER OF TEST __- ~
20 DEC 131 LOT 9
132 10
133 11
134 12 FG ;4”
15
31
DEC 22 139 LOT 32
140 35
141 52
142 50
143 39
144 40
iii 42
146 44
DEC 23 147
148
149
150
151
152
153
154
155
LEC 26 156 LOT 40
157 42
158
159
160
DEC 27 161
162
163
164
165
166
167
168
169
170
LOT 46
53
51
49
i
43
45
47
48
LOT 50
52
8
8
4";
43
45
FG
FG
FG
FG
27.5' 11.1 108.7
28.4' 12.3 107.7
30.7' 11.7 106.5
31.6' 13.0 105.9
34.0' 13.0 105.0
35.0' 13.0 106.9
37.8' 11.7 108.7
36.2' 14.3 105.0
37.4'
42.5'
it
%
13.6 105.5
13.6 104.8
14.9 106.0
12.3 105.9
13.0 104.8
13.0 104.7
13.6 107.8
14.9 105.2
160'
162'
162'
162'
162'
162'
162'
162'
162'
164'
164'
164'
164'
164'
14.3 107.5
12.3 106.0
14.3 104.0
13.0 106.1
14.9 1'06.9
164' 14.3 105.8
164' 13.6 106.2
131' 13.0 106.8
134' 12.3 108.3
137' 12.3 108.4
140' 13.0 105.1
16G' 14.3 106.0
166' 12.3 107.7
166' 11.7 108.3
166' 12.3 106.8
“OI,T”I)I ,,LLD
CD”TIHT OrY*,T”
5 Dll WT.
13.0 107.0
14.3 104.7
14.3 104.7
13.6 105.8
12.3 108.7
14.3 106.9
13.0 105.0
14.9 105.0
11.7 108.8
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0 E
5:o
11 E
5.0
E
2::
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
93.5
92.2
90.5
92.3
92.7
92.0
92.5
92.7
94.2
94.3
91.4
92.2
93.5
115.0 94.2
115.0 92.7
94.4
93.6
92.6
92.0
91.4
92.9
94.4
91.4
91.6
91.0
92.2
92.0 ..,; 91.1
91.0
93.6
91.5
93.0 :
91 .o
91 .o
92.0
94.4
92.8
91.3
91.3
94.5
COMPACTION TEST RESULTS
JOB NAME RANCH0 DEL PCijDEROSA UNIT #1 D*TEREPORTED February 13, 1976
JOB NUMBER 72-253
DATESCOVERED December 4, 1975 through January 23, 1976 PAGE 3 OF 3
DEC 29 171 LOT 47 166'
172 49 166'
DEC 30
JAN 22
JAN 23
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
19,l
192
193
194
195
196
197
198
51 zo”
42
39
41
43
44
LOT 53
52
51
48 FG 169.0'
47 FG 169.3'
46 FG 169.3'
45 FG 169.3'
36 FG 145.0'
LOT 37
38
8
LOT 6
4"
16
166'
166'
FG 167.7'
FG 168.2'
FG 167.4'
FG 167.9'
FG 168.7'
FG 169.0'
FG 167.6'
FG 167.8'
FG 168.2'
FG 168.5'
FG 168.7'
13.0 105.8
14.9 105.0
13.0 108.4
12.3 107.9
13.0 107.8
11.7 108.1
12.3 108.0
13.0 105.5
13.0 105.5
13.0 105.3
FG 147.0' 11.1 107.1
FG 148.4' 11.7 105.0
FG 141.1' 12.3 106.3
FG 142.5' 13.6 104.8
FG 146.1' 13.0 105.4
FG 147.6' 11.7 107.2
FG 151.0' 15.6 104.9
FG 138.8' 12.3 106.5
*O,,V”“=
COWIIICT * 0”” WT.
14.9 105.7
15.6 103.4
13.0 105.1
13.0 107.0
13.6 105.2
12.3 110.0
11.1 108.9
12.3 106.0
13.0 107.9
12.3 105.9
t.A~oI*ro~” “ILAIIVI DLHDlTv EOYPACTION
2 % 0, LAP. DLN.. -____
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
91.8
90.8
91.4
93.1
91.5
95.6
94.6
92.2
93.8
92.1
92.0
91.1 .~'
94.3
93.8
93.6
94.0
93.9 :
91.6
91.6
91.5
93.3
91.1
92.5
91.2
91.5
93.4
91.3
92.6
I
COMPACTION TEST RESULTS
JOB NAME RANCH0 DEL PONDEROSA UwIT #l ~~~~~~~~~~~~ February 13, 1976
.JOQ NUMBER 72-253 (Streets)
DATES COYERED November 14, 1975 through January 23, 1976 PaGES-1 d-2
OAll TSST RETLOT LDCAllD” ELE”AmOH
NUMBCR 0. OF TEST
riov 14 S-l
NOV 17 s-2
s-3
NOV 18 s-4
s-5
NOV 20 S-6
s-7
NOV 24 S-8
s-9
iiov 25 s-10
s-11
s-12
s-13
EC 17 s-14
s-15
DEC 18 S-16
S-l 7
DEC 19 S-18
DEC 20 s-19
s-20
LA BR&CA HAY:
OPP LOT 30
LA BRUSCA NAY:
OPP LOT 29
OPP LOT 31
LA BRUSCA WAY:
OPP LOT 28
OPP LOT 30
LA BRUSCA WAY:
OpP LOT 9
LA t;f\CAlRENA DRIVE:
OPP LOT 8
LA MACARENA DRIVE:
Opt' LOT 8
LA BRUSCA WAY:
OPP LOT 29
LA BRUSCA WAY:
OPP LOT 32
LA MACARENA DRIVE:
OPP LOT 35
LA TINADA COURT:
OPP LOT 8
OPP LOT 42
LA TINADA COURT:
OPP LOT 51
OPP LOT 43
LA TINADA COURT:
OPP LOT 44
OPP LOT 41
LA TINADA COURT:
OPP LOT 50
LA TINADA COURT:
OPP LOT 48
OPP LOT 52
110' 15.6 103.8
114' 16.9 104.0
117' 16.3 105.1
120' 16.9 105.2
123' 17.6 101.8
126' 15.6 104.2
126' 15.6 105.3
130' 16.3 103.8
130' 16.3 105.0
133' 17.6 103.9
133' 17.6 101.8
135' 16.9 103.6
135' 13.0 107.0
140'
144'
14.9
11.7
105.9
107.3
148' 13.0 106.0
152' 12.3 105.0
155'
159'
159'
14.3
11.1
12.3
107.0
104.0
106.2
FIILD LA~ORATOR” “LUIIVI q IUSITI DSH,,Tv EOYCACTlOll
--EL- * 0, !-Am. 0n.H.. PC,
113.5
113.5
113.5
113.5
111.5
113.5
113.5
113.5
113.5
113.5
109.5
113.5
115.0
115.0
115.0
115.0
115.0
115.0
115.0
115.0
91.4
91.6
92.5
92.7
91.2
91.7
92.7 .'
94.1
92.5 :
91.5
92.7
91.3
93.0
92.1
93.5
92.0
91.4
93.0
90.5
93.3
. . COMPACTION TEST RESULTS
JDQ NAME RANCH0 DEL PONDEROSA UNIT #T ~~~~~~~~~~~~ February 13, 1976
JOB NUMBER 72-253 (Streets)
DATES COYERED November 14, 1975 through January 23, 1976 PnGE s-2 OF s-2
DATE Tn(lT RETEET LOClTlON ELEY*TIOH NUMBLR or OF TEST -
DEC 23 s-21 LA
s-22
DEC 26 S-23 LA
S-24
s-25
TINADA COURT:
OPP LOT 51
OPP LOT 45
TINADA COURT:
OPP LOT 43
OPP LOT 40
LOS PINOS DRIVE:
OPP LOT 53
162' 11.7 105.1 115.0 91.5
162' 13.0 104.8 115.0 92.1
165'
165'
164'
JAN 23 S-26 LOS PINOS DRIVE:
OPP LOT 54 168'
S-27 OPP LOT 53 170'
YOISTVII ,IILD LA~OIAIO** “‘UT,“. CO”TZNT DINBlT” DI(NmT* COYP*cTIO” * DIY ‘II. PCI % or IAm. OL*L,.
16.9 I109.9 113.5 96.8
13.6 104.8 115.0 92.1
14.3 105.0 115.0 91.4
11.1 112.0 115.0 97.3
13.6 106.9 115.0 93.2 ."
‘. COMPACTION TEST RESULTS ,’
Joe NnME RANCH0 EEL PONDEROSA UNIT #l
JOBNVMBER 72-253 (Electrical Trench Backfill)
DATEsCOYEREDDecember 29, 1975 through January 6, 1976
DATEREPORTED February 13, 197
PKk-1 OF E-1
YOI.T”II llr2.D l.A.OR*TOn* “lLATl”l O*TL nm RrTEIT LOC*TtON ELEY*TION CONIINT DrNslr” OSN.IT* CDUPlCTlOH NUMBCR OF OF TEST * D”V WT. KI % or LAB. DLW‘. ___- --- -.___
DEC 29 E-l OLIVENHAIN ROAD:
STA 23t60 130' 14.9 104.5 115.0 91.0
E-2 STA 23tO0 131' 14.3 106.4 115.0 92.4
E-3 STA 22tO0 134' 14.9 106.0 115.0 92.1
DEC 30 E-4 OLIVENHAIN ROAD:
STA 22tO0 125' 13.0 106.7 115.0 92.7
E-5 STA 22t50 129' 14.3 104.6 115.0 90.8
JAN 5 E-6 OLIVENHAIN ROAD:
STA 20tO0 115' 12.3 106.0 115.0 92.0
E-7 STA 18tO0 105' 14.3 104.7 115.0 91.0
E-8 STA 18t80 111' 14.3 104.2 115.0 90.6 .',
JAN 6 E-9 OLIVENHAIN ROAD:
STA 2Ot75 121' 13.0 105.7 115.0 91.8
E-10 STA 16tO0 95 ' 14.3 106.0 115.0 92.0
PLASTICITY CHARACTERISTICS , 2 I3 { SILT b CLAY] ~~I::~
Classification by Unified Soil
z 60
2 tu 40
) 2
ZERO AIR VOIDSCURVES %! 20
nl ’ II I I II I I II II I I
1 \--h 2.50 SG
iooo 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
Final Water Content, %
Apparent Cohesion, psf
Apparent Frktion Angle, degrees
SWELL TEST DATA I I I I
lflitial Dry Density, pcf -..__ --
Inillal Warer Content, % _--_ - _-~ ~~~__..
Final Dry Density. pcf
Final Water Content % --1- 1
Load, psf
Swell, percent
SAMPLE LOCATION
1 !a#9
2 wff-?5 Optimum Moisture 3 LOT #I 77
L AIIOIlAlO,,Y (:OMI’ACTION ,~,L!il do II:ST M~-IIIOI): 5lM-I) l!i57-70e:~fl LAnORATOnY COMPACTION
~..~--
‘.
l-000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE. mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA 4 5
PLASTICITY CHARACTERISTICS 4 5
Liquid Limit, %
ZERO AIR VOIDSCURVES
Dry Density. pcf 109.6 102.7
Initial Water Content, % 12.9 14.9
Final Water Content. % ,.- 12.1 19 .n ~~_-
Apparent Cohesion. prf ..joo 280
Apparent Friction Angle, degrees 1 32” 30”
ILAIIDffA~fOItY COMPACTION TEST
LABoRAToRY yfy~~fi~\~~,-7” I\ TLS~f MC11101): :~
I II I, :;lll~rAllll,ITY Tl’S~l’S
I:Al~ll.llrl Ill I I’~ii~lnl~lci,!;/\ // I
11II,\WN II” .~ I,‘, 1 “I’!,‘:“‘~,; ,;Y:~~~-l,~IIoI1~!l)N(I. I/;I-~~~~_l._~I-I;--‘I~~ij_l_lL111161;nl_NI(__
PLASTICITY CHARACTERISTICS 6 7 I rCOBBLES I GRy,L I _ , SAN:
I Liouid Limit %
SILT L CLAY
I ,G,T,C,nl, f
I I 1-l
I Plasticitv Index. % INPINPI I ‘--I I..:.;~, ~~~~,
Class!fmtlon by Unified Soil
80
1 Classification System 1 Xl 1 >M 1 ‘i? 2 6”
2 60
+
5 40
E
/’ / /
1000 100 10 1.0 0.1 0.01 0.001
GRAIN SIZE, mm
MECHANICAL ANALYSIS
DIRECT SHEAR TEST DATA fj 7
Dry Density. pcf .~ 9.3 107.4
Initial Water Content, % 17.1 15.4
Final Water Content, % 16.1 19.7
Apparent Cohesion. psf 60 160
Apparent Friction Angle. degrees 31 a 35’
SWELL TEST DATA I I I 1
Initial Dry Density, pcf I-- ___ I
Initial Water Content. % ___-__
1 Final Dry Density. pcf
Final Water Content, 96
Load, psf
Swell, percent
LABORATORY COMPACTION --^- . .r-. .^^. TM -D L557 711 A LABORATORY COMPACTION TEST I tsr Nit I nvv
FILL SUITARII.ITY TESTS
IUNCtIO DLL PONDEROSA f/l
P"O.lECT NO: 77- 253 DATE: Y/13/76 FlO"HE NO: :j
. ..^" -..,__- ^...^ L - --.- -.------~-