HomeMy WebLinkAboutCT 72-02; Pacific Scene Unit 2; Final Clearance Report on Soil; 1973-05-25FINAL CLEARANCE REPORT ON SOIL CONDITIONS
CARLSBAD, CALIFORNIA
-
FOR
-
SlOlO
.5.62
2032 GARNET AVE.
SAN DIEGO, CALIFORNIA
MAY 25, 1973
JOB NO. 71-105
SOIL AND MATERIAL TESTING LABORATORY
’ OF NORTH UOUNTY. INm.
- SOIL ANT) Mkmnr~~ !I?ESTING LABORATORY
OF NORTH COUNTY, INC.
- May 25, 1973
423 HALE AVE. - EBCONDIDD. CALIF. 92025
EBCONDIDO -746-2333
-
-
Pacific Scene, Inc.
2032 Garnet Avenue
San Diego, California 92109
Re: Job No. 71-105
Carlsbad Tract 72-2, Unit 2
Carlsbad, California
Subject: Final Clearance Report on Soil Conditions
Gentlemen:
This report is to cover the results of our tests and
observations concerning the site clearing and compaction of
filled ground placed on the above referenced project as show
on the enclosed Site Plan. -
The filled ground for Carlsbad Tract 72-2, Unit 2 ulas
- placed between the dates of December 11, 1972 and April 10, 1973.
-
The preparation of the natural ground and placing of compacted
filled ground was done in accordance with the approved recommenda-
tions and specifications contained in our Preliminary Soil Investi-
gation Report for this project dated January 26, 1972. Please note
this project was previously called ttCampobello Planned Community”
and was subsequently entitled Carlsbad Tract 72-2.
All loose or saturated soils in the areas to be filled were ex-
cavated and recompacted or were compacted in place as directed by
our field representative. Potentially expansive soils encountered
during grading were excavated and placed in deeper portions of the
fill. All lots are covered with at least 2 feet of nonexpansive
soil.
-
Carlsbad. -
The laboratory compaction test procedures and results of the ‘1
-
-
_-
-
-
-
Two field dE .ity tests were taken in i J drainage StrUCtUrS
backfill located south of Lots 287 and 296.
The approximate fill area tested, areas undercut due to
saturated material and expansive soil, and location of field
density tests are shown on the enclosed Site Plan. The Site Plan
has been redrawn from the approved Grading Plan by Rick Engineers,
soils encountered during the grading are shown on page 3. The
field density test methods are also presented on page 3. Field
density test locations and results taken during the fill control
are presented on pages 4 thru 10.
Field density tests indicate all filled ground has been placed
to at least 90% of the optimum dry density.
Footings placed less than five feet inside the top of the slopes
should be deepened one foot below a 13 horizontal to 1 vertical line
projected outward and downward from a point 5 feet horizontally
inside the top of the slopes.
Ule understand Lot 337 is to be used for a park or green area.
However, if any structures are to be placed in this area additional
testing and recommendations for expansive soil will be required
- prior to construction.
It is our understanding that all the placing of filled ground
- has been completed.
Respectfully submitted,
- SOIL AND MATERIAL TESTING
LABORATORY OF NORTH COUNTY, INC.
- ce_QQ.PA
Claude 8. Parker Registered Civil Engineer '#la,987 Registered Geologist #512
- Distribution: 8 Addressee
Pe SOIL AND MATBRIAL TBSTING LABORATORY
OF NORTH OOUNtY. INO.
- DENSITY DATA
1 - Laboratory Compaction Tests
- Laboratory compaction tests were performed on the fill mater-
ial to determine the maximum dry density and optimum moisture content
as specified by ASTM D 1557-64T (method A). The test uses the minus
_- #4 sieve soil in a 4 inch diameter 4 inch high cylinderical mold.
The sample is formed with a IO pound hammer falling 18 inches for
- 25 blows on each of 5 layers.
LABORATORY COMPACTION TEST
Unit Test Soil Description Max.Dry Optimum
No. No. Density Moisture - (pcf) Content ($)
1 1 Gray Brown Silty Medium Sand 123.0 8.5
- 1 4 Green Gray Sandy Clay 104.0 20.9
1 6 Brown Fine to Medium Sand 129.9 9.1 -
1 7 Brown Silty Sand 129.5 7.8
- 1 13 Brown Sandy Clay 125.2 11.3
2 1 Brown Fine Silty Sand 120.0 9.9
-
2 2 Brown Silty Sand 127.0~ 8.4
2 3 Brown Silty Sand 133.9* 8.2 -
2 4 Green Sandy Clay 115.5 15.9
.‘\,
- Field density tests were taken at selected locations to
determine the moisture and density conditions of the fill and
backfills. The tests were performed according to ASTM D1556-64,
the sand cone method. The ratio of field dry density to the
laboratory maximum dry density is defined as the relative compaction.
-
.
-
SOIL AND MATERIAL TEEWING LABORATORY
OC NORTH OOUNTY. INO.
12-11
12-12
12-13
12-14
12-18
12-19
12-20
12-21
1
2
3
4
5
6
7
8
9
IO
11
12
13
14
15
16
17
18
19
20 -
FIELD DENSITY TEST RESLJLl
BUILDING PADS
Date Test Ro- Location Ht. of Field Field Maximum Reiative
of No. test of Test Fill Moisture Dry Dry Cornijaction
Test of Lot No. Tested Content
1972 Test (Feet) (%I
Density Density
(PCf) (PCf)
(73
21 -
12-22 22
12-26 23 - 24
12-27 25
- 26
27
- 12-28 28
Fill Slope
Ulest of
Lot 327
331
330
Fill Slope
Ulest of
Lot 326
334
328
322
324
325
329
332
327
333
264
261
255
287
280
285
Fill Slope,
l South of
Lot 290
291
332
330
227
321
323
326
222
1.0 8.1 125.3 129.5 96.8
I.0 8.7 113.0 120*0 94.1
3.0 8.7 123.0 133.9 91.9
1.0 8.1 111.0 120.0 92.5
3.0 7.0 125.2 133.9 93.5 \
5.0 19.0 93.8 104.0 90.2
1.0 8.7 123.0 133.9 91.8
3.0 8.1 123.9 133.9 92.5
5.0 11.1 112.0 120.0 93.3
7.0 8.7 117.1 127.0 92.2
5.0 7.5 123.7 133.9 92.4
9.0 6.4 116.0 127.0 91.3
7.0 5.8 128.5 133.9 95.9
O.G. 6.7 115.8 127.0 91.1
1.0 13.0 114.7 125.2 91.5
O.G. 6.7 115.3 127.0 90.8
O.G. 7 .'5 111.6 123.0 90.7
O.G. 8.1 114.8 127.0 90.3
1.0 7.5 ' 122.6 133.9 91.5
1.0 10.5 128.5 133.9 96.0
O.G. 6.4
9.0 11.1
11.0 11.1
1.0 5.3
5.0 8.7
7.0 8.1
9.0 8.7
O.G. 7.0
108.0
124.6
125.2
123.3
129.6
127.9
124.7
123.2
LABORATORY
123.0 87.9
133.9 93.0
133.9 93.5
129.9 94.9
133.9 96.8
133.9 95.5
129.9 96.0
129.9 94.8
-
SOIL AND MATXRIAL TESTING
0 0
Date Test Re- Location Ht. of Field Field Maximum RiJiz:l;lvc
of No. test of Test Fill Moisture Dry Dry Coi;,p~~cion
Test of Tested Content Density Density (%; 1972 Test Lot No. (Feet) (%I (pcf) (pcf) No.
12-28
12-29
1473
t -2
l-3
l-8
I-15
l-22
l-23
29 217 O.G. 7.0 118.7 129.9 91.3
30 233 O.G. 8.1 120.6 129.9 92.9
31 208 1.0 7.5 125.3 133.9 93.7
32 282 1.0 8.1 124.0 133.9 92.6
33 277 1.0 9.3 118.5 127.0 93.3
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
305
287
284
311
21 293
272
257
241
212
231
253
265
269
279
274
281
. 327 .
260
263
276
286
283
250
256
322
320
O.G. 8.1 116.2 127.0
3.0 17.6 107.8 115.5
3.0 17.0 109.6 115.5
O.G. 7.6 118.5 127.0
O.G. 5.8 116.2 123.0
O.G. 11.7 118.9 127.0
1.0 7.0 124.4 133.9
O.G. 8.7 119.7 129.9
, 1.0 8.1 124.1 133.9
1.0 5.8 121.1 129.9
1.0 17.6 105.5 115.5
1.0 7.5 118.0 127.0
1.0 18.3 106.5 115.5
3.0 17.6 104.2 115.5
1.0 8.1 118.0 127.0
5.0 18.3 105.2 115.5
14.0 7.5 124.8 133.9
3.0 15.6 106.0 115.5
3.0 14.3 104.8 115.5
3.0 16.3 106.8 115.5
5.0 17.0 104.4 115.5
7.0 15.6 107.9 115.5
1.0 10.5 128.0 129.9
3.0 11.7 125.0 133.9
F.G. 7.5 129.5 133.9
1.0 8.1 123.6 133.9
91.4
93.3
94.9
93.3
94.5
93.6
92.9
92.2
92.7
93.2
91.3
92.9
92.9
90.2
92.9
91.1
93.2
91.8
90.7
92.5
90.4
92.8
98.5
93.4
96.7
92.3 -.., . .
8011, A;NI) ‘MA’A’KCItIAI, ‘l%:Wl’ANU .LAUOItA’I‘OItY
nr YPICITY n”l*uIY .&I”
--
-
Date Test Re- Location. Ht. of Field Field Maximum Rel ative
of No. test of Test Fill Moisture Dry Dry COi2p a:r,tion - Test of Tested Content
1973 Test Lot No. (Feet) (%>
Density Density
(PCf) (PCf)
(%>
- l-23
l-24
-
-
- I-25
-
-
l-26 --
-
-.
-. l-29
-
-
I-30 -
-
-
60 319 F.G.
61 317 1.0
62 289 5.0
63 285 7.0
64 282 7.0
65 247 F.G.
66 249 F.G.
67 324 F.G.
611 325 F.G.
69 223 1.0
70 220 1.0
71 274 1.0
72 313 F.G.
73 271 2.0
74 262 5.0
75 292 2.0
76 296 2.0
77 267 2.0
78 266 5.0
79 211 F.G.
80 216 F.G.
81 218 F.G.
82 -4 251 F.G.
83 254 F.G.
84 256 F.G.
85 235 1.0
86 209 F.G.
87 207 F.G.
88 328 F.G.
89 330 F.G.
90 331 F.G.
12.3 116.1
11.7 120.9
5.3 111.1
8.1 125.5
9.9 130.5
9.3 126.6
11.7 124.1
8.1 120.6
8.1 124.5
12.3 114.4
12.3 123.3
8.7 126.8
9.3 117.7
10.5 126.8
11.7 122.0
9.9 117.2
14.7 115.3
8.7 123.7
8.1 123.1
8.1 125.9
9.3 118.6
9.9 123.2
9.9 125.5
11.1 122.5
10.5 126.2
8.7 118.3
9.9 117.2
7.5 121.8
8.1 119.0
8.7 124.7
8.7 128.4
127.0 91.4
133.9 90.3
133.9 83.0
133.9 93.7
133.9 97.5
133.9 94.5
133.9 92.7
129.9 92.8
133.9 33.0
127.0 90.1
133.9 92.1
133.9 94.7
129.9 90.6
133.9 94.7
133.9 91.1
129.9 90.2
133.9 86.1
133.9 92.4
133.9 91.9
133.9 94.0
129.9 91.2
133.9 92.0
133.9 93.7
133.9 91.5
133.9 94.5
129.9 91.1
129.9 90.2
133.9 90.9
127.0 93.7
133.9 93.1
133.9 96.0
SOIL AND MATXRIAL TESTING LABORATORY
Of NORTH OOUNTY. INO.
Data Test Re- Location Ht. of Field Field Maximum Relative
of No. test of Test I Fill Moisture Dry Dry Compaction
- Test of Tested Content Density Density La 1973 Test Lot No. (Feet) (%I (PCf) (PCf)
- I-30
I-31
-
-
-
2-l
- 2-2
-
.-.
-
2-9
-
2-10 -
-
-
- 2-21
- 2-22
91 334 F.G. 12.3 122.8 133.9 91.7
92 268 F.G. 5.3 124.1 133.9 92.7
93 270 F.G. 9.9 125.8 133.9 93.9
94 272 F.G. 6.4 117.8 129.9 90.7
95 219 F.G. 11.7 119.2 129.9 91.8
96 229 3.0 9.9 119.1 129.9 91.7
97 317 F.G. 12.3 112.8 129.9 86.9
98 312 F.G. 10.5 118.3 129.9 91.1
99 300 1.0 9.8 118.1 127.0 92.9
100 303 1.0 8.7 121.0 129.9 93.1
101 308 1.0 8.7 129.0 133.9 96.3
102 239 1.0 9.9 116.8 127.0 92.0
103 233 3.0 9.1 122.0 133.9 91.1
104 262 F.G. 6.9 124.1 133.9 92.7
105 265 F.G. 7.5 127.5 133.9 95.2
106 241 F.G. 13.6 115.8 133.9 86.5
107 245 O.G./F.G. 10.5 122.7 133.9 91.6
108 240 F.G. 11.1 115.8 133.9 86.5
109 238 F.G. 11.7 126.5 133.9 94.4
110 225 F.G. 11.1 126.9 133.9 94.8
111 228 F.G. 8.7 126.5 133.9 94.4
112 230 F.G. 11.1 127.0 133.9 94.9
113 ** 263 F.G. 9.9 126.0 133.9 94.1
114 273 F.G. 9.3 132.2 133.9 98.7
115 278 5.0 9.3 123.5 133.9 92.1
116 279 7.0 8.7 122.8 133.9 91.7
117 275 F.G. 9.9 127.4 133.9 95.1
118 278 F.G. 9.3 130.7 133.9 97.6
119 280 F.G. 9.3 120.5 133.9 90.0
120 281 F.G. 9.9 127.1 133.9 94.9
121 283 F.G. 10.5 125.0 133.9 93.3
122 97 317 F.G. 9.3 125.7 133.9 93.9
123 258 4.0 11.1 123.9 133.9 92.5
124 286 F.G. 8.1 124.3 133.9 92.8
SOIL AND MATERIAL TESTING LABORATORY
Of NORTl4 OOUNTY. INO.
-
Date Test Re- Location I-It. of Field Field Maximum Rczlatiuti
of No. test of Test Fill Moisture Dry Dry Compz;ction
Test of Lot No. Tested Content Density Density (P> 1973 Test (Feet) (%) (pcf) (PCf) No.
2-22
2-23
2-26
2-27
3-23
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
62
76
108
125
106
134
.
148
O.G. = Original Ground
F.G. = Final Grade
288 F.G. 8.1 111.6 133.9 83.3
290 5.0 10.5 124.7 133.9 93.1
296 2.0 10.5 122.0 133.9 91.1
295 F.G. 10.5 120.5 133.9 90.0
294 F.G. 9.9 118.1 129.9 90.9
292 F.G. 11.7 121.9 133.9 91.1
236 F.G. 5.8 121.4 133.9 90.6
234 F.G. 9.3 126.1 133.9 94.2
240 F.G. 9.3 123.0 133.9 91.8
260 4.5 11.1 116.7 133.9 87.2
288 F.G. 8.1 125.3 133.9 93.5
298 F.G. 6.4 122.8 127.0 96.7
302 F.G. 6.4 122.7 127.0 96.6
306 F.G. 8.7 129.4 133.9 96.6
309 F.G. 10.5 124.7 133.9 93.2
316 F.G. 11.1 124.5 133.9 93.0
241 F.G. 8.7 128.8 133.9 96.1
232 F.G. 9.3 125.9 133.9 93.7
224 F.G. 12.3 121.6 133.9 90.8
221 F.G. 13.0 121.0 133.9 90.4
260 4.5 10.5 123.9 133.9 92.5
258 F.G. 11.1 122.0 133.9 91.1
259 F.G. 9.3 124.7 133.9 93.1
290 F.G. 11.1 116.4 133.9 87.2
290 F.G. 9.3 121.1 133.9 90.8
SOXL AND MATERIAL TESTING LABORATORY
ac NCIPTY BLI”htW. than.
FIELD DENSITY TEST RESULT
BACKFILL TESTS -
Date Test Re- Location Ht. of Fiold Field Maximum fCl;lS ii\Jr;
of No. test of Test , Fill Moisture Dry Dry Cori,>Lction
Test of Tested Content Density Density (%) Test (Feet) (%) (pcf) (pcf) 1972 No.
12-28 1 Opp. Lot 287 O.G.-1.5 13.0 117.0 127.0 92.0 Storm Drain
- 1973
. 2-22 2 Opp. Lot 296 O.G.-1.5 12.3 115.2 127.0 90.7
- Storm Drain
-
-
.
-
\.
SOIL AND MATXRIAL ‘~Sl’XNG I,,1 i~ORA’JX)RY
OF NORTH_ DOUNTV, INC.
- FIELD DENSITY TEST RESULT'
STREET TESTS
Date Test Re- Location' Ht. of Field Field Maximum Relative
of No. test of Test Fill Moisture Dry Dry - Test of Tested Content
1973 Test (Feet) (%I
Density Density
(pcf) (pcf)
Comf;ytion
- I-15
- 1-31
-
2-l
-
-
3-2 -
-
-
- 4-5
-
-
3
4
5
6
7
8
9
IO
Caminito Azul
OPP. Lot 282
Camino De Las
Ondas
Sta. IO+64
Camino De Las
Ondas
Sta. 7+75
Camino De Las
Ondas
Sta. IO+40
Camino De Las
Ondas
Sta. 9+75
Camino De Las
Ondas
Sta. 8+50
F.G. = Final Grade
-
-
-
-
-
Camino De Las
Ondas
Sta. 6+20
Caminito Azul
OPP. Lot 278
Caminito Azul
Opp. Lot 283
Caminito Rosa
DPP. Lot 265
1.0
1.0
1.0 6.9 125.9 129.9 96.9
3.0 9.3 128.5 133.9 96.0
F.G. 7.5 123.3 133.9
F.G. 9.9 122.5 133.9
F.G. 11.1 126.2 133.9
3.0 8.1 125.5 133.9
F.G. 8.1 121.8 127.0
F.G. 11.7 123.4 133.9
17.6
7.5
105.6
.
121.3
115.5
129.9
91.4
93.4
92.1
91.5
94.2
93.7
95.9
92.1
SOXL AND MATERIAL TESTING LABORATORY
Of NORTW COUNTY, INC. an