HomeMy WebLinkAboutCDP 01-47; NAYUDU RESIDENCE; REPORT OF FIELD DENSITY TESTS; 2002-09-27FROM PHONE NO 619 4427859 Oct 01 2002 11 45flM P2
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September27 2002 -
. Project No 106E61
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To Kris and Nancy Nayudu
320 Walnut Avenue ' . -V - V.;• S. • VA_V -- *' / A V VV / Carlsbad, California 92008
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Subject Report f Field Density Tests, Retaining Walls, North and East Sides of
Property at 3286 Lincoln Street, Carlsbad ,Californra
7 V - V •V - V V. References 1 Soils Investigation, Proposedjwo-Story Single-Family Residence,
3286 Lincoln Street, Carlsbad, California, dated November 21, 2001, by
Southland Geotechnical Consultants t
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2 Report of Field Density Tests, Proposed Two-Story, Single-Family
Residence, 3286 Lincoln Street Carlsbad, California -date Augi.ist 2,
2002, by Southland Geotechnical Consultants
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Introduction -
Southland Geotechnical Consultants has performed geotechnical observation and
testing services during backfill operations for the retaining walls on the north and east
sides of the property at 3286 Lincoln Street in Carlsbad This report presents a
J summary of our geotechnicat observations and field and laboratory test results for this
retaining wall backfill
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Summary of RetatnlnQWail Backfill Operations'
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This report addresses retaining wall backf ill operations that were accomplished during
the period of September 13 through September 1 7, 2002 Geotechnicai observation
and testing of compacted fill were performed by a represetative from our firm o an
as-needed basis during ill operations Backfill soils vereplaced in lifts brought
to near-optimum moisture conditions, and compacted by mechanical means to at least
90 percent of the ,laboratory maximum dry density as determined by ASTM D1557
Fieldand Laboratory Tests .
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Field density tests were performed in general accordance with ASTM Dl 556 (Sand-
Cone Method) The results of the field density tests for the retaining wall backfill are
presented in Table 1 (Summary of Field Density Tests). The appoxmat locatiôrs of
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'FROM : PHONE NO. : 519.442 7859 Ot. 01. 2002 11:45flM P3
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. -. . Project No. 106E61
the field density tests for the retaining wall backfill are -shown on Figure 1 (Field
Density Test Lbcation Map).-
The laboratory maximum diy density and optimum moisture content of a representative
sample of the fill soils .placed as retaining wail backfill were evaluated in general
accordance with ASTM test designation D15'57. the results of the laboratory test are
summarized in'Table 2 (Laboratory Test Results).
.
Conclusions
- Our geotechnical observations and field and laboratory test results indicate that the fill
soils placed as retaining wall backf ill on the north and east,sides of the property have
been compacted to at least 90 percent -relative compaction, as evaluated using.test
S methods ASTM 01556 and ASTM 01557. The fill soils generally consist of light
brown silty fine to medium. sand. The fill soils are generally similar to soils in the
S general site vicinity found to have .a very low to .low expansion potential 'when tested
in general accordance with USC test standard 18-2. 5
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FROM : PHONE NO. :.619 442 7959 Oct. 01 22 11:4EflM P4
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- Project No. 106E61
If you have any questions, regarding this report, %please. contact our office. We : appreciate this opportunity to beàf servicer
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Sincerely, *'
SOUTHLAND -GEOTECHNICAL CONSULTANTS'
Gene. Custenborder, CEO 1319 Chayles R. Corbin, H
Principal Engineering Geologist Praect Engineer
N& 36,302
40 319
ENG
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Attachments: ' Table 1 -. Summary of Field Density Tests -
Table .2 '-Laboratory Test Results • - ,'
Figüré 1 -,Field Density Test Location Map
Distribution:
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(3) Addressee
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SOiL FIELD DRY I MAXIMUM FIELD OPTIMUM RELATIVE TEST DATE : LOCATION TYPE DENSITY DRY DENSITY MOISTURE. MOISTURE COMPACTION NOTES NO. . (pf) (pcf)
7 9/13102 RET WALL A 1164 1269 115 110 92 CF
8 9/13/02 RETWALL A 1163 1269 100 110 92 CF
-9 9117102 RT WALl. A 1151 1269 114 110 4 91 FG
10 9/17/02 RET WALL A 113.6 126.9_— - 10.6 -, 11.0 9O -FG
FROM : :PHONE NO. : 619 4427859 Oct. 01 22 11:48PM P6
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FIELD DENSITY TEST LOCATION MAP
.7' (fur RETAINING WALLS)
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N LEGEND
Project No. 106E61, . e Approximate location of Proposed Nayudu Residence 10 field densrry test 3286 Lincoln Street
Carlsbad, California •
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Scale (appthximat,) 1 inch 20 feet • :
•
Base Map: Site Plan prepared by •
Edward M. Eginton, Architect, Inc., - • dated December 1998 :• FIGURE 1
SGC
PHONE NO 619 442 7859 Oct. 01282 11:48PM F? .FROM
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SUMMARY OF GEOTECHNICAL OBSERVATION
OF FOUNDATION EXCAVATION
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Project Name: Proposed: Two-Story Single-Family Residence
. . Location: 3286 Lincoln Street, Carlsbad. California
. .
eferenced Geotechrijc6[8eports
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Soils 'Investigation,' Proposed Two-St'ory, 'Single-Family Residence, 3286, Linotn 'Street, Carl
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California, dated November 21, 2001 by Southland Geotechniäal Consultants
Report of Field Density Tests,' ,Proposed 'Two-Story, ,Sing le-Fa rnily Residence, 3286 Lincoln St
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Carlsbad, California, dated August'2, 2001 by Southlard'Gectechnical Consultants
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- Soil and Footing Observation Summav
INITIAL:
A representative, of So'uthlànd Geotechnical Consultnts (SGC) has observed the orlsite
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conditions and the soil conditions are 'substantially in conformance with those assum
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preliminary soils investigation report (#1).
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#Compacted 'fill soil placement was observed and tested by a SGC representative. A summar
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geotechnical observations and testing during grading is provided in our report of field density
tests (#2). The fill solls'were placed and compacted in general accordance with t.e preliminary
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investigation report (#1);
, •
A representativó of SGC has observed and measured the footingex6avation. Footing excavations extend to' the minimum recommended depths and 'bearing Strata. Al~
' ZMgrZ The onsite soils were evaluated to, have a very low to low expansion potential. The f
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excavations are generally inaccordance with the recommendations for foundations provided
in the preliminary soils investigation report (#1). '
OTHER
'• -Footing excavations should be' cleaned of loose soil and debris and,thoroughly moistened prior
to piecing concrete.
.
-In the event of a significant change to the site conditions or foundation excavations subsequent to our inspection and prior to placing concrete, vy.e stuld be contacted to make additional observations. Such changes could be due to natural (i.e heavy rain, etc.) or manmade-cau
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- Authlan 000fOChn!"l C01757&faRtS I [)ate 1238 Greenfield Drive, Suite A
El Cajon, CA 92021 619-442-8022
SGC Project No. 106561
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OCT-01-2002 10:15 'FROM: 858 259-4812 TO:7604384178 . P.001'03
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12002
'535,NORTH HIGHWAY 101 SUITE AD
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PIE (858) 259-8212 WAYNEAPASCO
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- SOI.ANA BEACH. CA9ao75
FAX (858)259-4812 R.C.E. 29577
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OCT 1-200210: 15 FROM: 85 8 259-4812 TO:7694394178 P.003'00
PASCO ENGINEERING, INC
535N0RTh HIGHWAY 1011 SUITE A I
______
• SOLANA BEACH, CA 92075
FAX (858) 2594812
WAYNEAPASCO
September 20, 2002 - •, PE85 ,1
City of Carlsbad V
- 1635 Faraday Avenue •
Carlsbad, CA 92008
RE: PAD CERTIFICATION— DWG. N0..401214
To Whom It May Concern:
V V
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V Please be advised that oji, September 19, 2002 I Uye reviewed the grading on the above
V
V V referenced plan. I have found that the site has been graded in substantial conformance
with thóplan: Thô average pad grade was foundt be 52.00, plan grade equals 51.90.
V V If you have any questions please feel free to contact this office:
V
Sincerely,
V
V
V
PASCO ENGINEERING, INC. V V V • V V
V
- Joe Yuhas1 L.S.5211 V .
V Director:of Land Surveying
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JY:dlf V
FROM BESEMER FAX NO Oct. @1221øAMP1
SGC Southland Geotechnical Co L9 2002
L CALSAD.
August 2; 2002 Project N6'106E61
To: Kris and Nancy Nayudu
' 320 Walnut Avenue
Carlsbad, California 9,2008
S
Subject: Report of Field Density :Tts Proposed Two-Story, Single-Family
Residence, 3286 Lincoln Street, Carlsbad, California
Reference: Soils Investigation, Proposed Two-Story, Single-Family, Residence,
3286 Lincoln Street, Carlsbad, California, dated November 21; 2001, by
Southland Geotechnical Consultants
Introduction
Southland Geotechnical Consultants has 'performed geotechnical observation and
testing services during grading and construction activities for the proposed two-story,
single-family residence at 3286 Lincoln Street in Carlsbad. This report presents a
summary of our geotechnical observations and field and laboratory test results
Summary of Grading Operations
This report addresses site grading that was accomplished during the period of July 24
through July 31, 2002. Geotechnical observation and testing of compacted fill were
performed by a representative from our firm on an as-needed basis during grading.
Grading of the site generally consisted of the removal and recompactiori of potentially
compressible onsite soils and placement and compaction of imported fill soils to
construct a relatively level building pad for the construction of.the proposed residence. -
Prior to grading, the site was generally stripped of surface vegetation and debris. Prior
to placement of fill, the natural ground was scarified, brought to near-áptimum
moisture conditions, and compacted to at least 90 percent of the laboratory maximum
dry density as determined by ASTM D1557. Fill soils were placed in lifts, brought to
near-optimum moisture conditions, and compacted by mechanical means to at Least
90 percent of the laboratory maximum dry density as determined by ASTM Dl 557.
. 7238 GREENFIELD DRIVE, SUITE A £L CA JON, CALIFORNIA 92027.
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- TABLE
SUMMARY OF FIELD DENSITY TESTS -
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, APPROX SOIL' FIELD DRY
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MAXIMUM
' 02
- FIELD 1 OPTIMUM .
-, RELATIVE -
5> TEST DATE ELEVATION DENSITY,- DRYDENSITY MOISTURE - MOISTURE' COMPACTION NOTES . .
No'.(feet) -__(pd) (pci) ()
'1 7126102 46. A 119.0 . - 126.9 101$.. - 11.0 94 'CF
2 7F2610 48 A 121.6 1269 5 110 96
' 3 7f30/02 60, A 120.7 125.9 . 2.0. '-- ,11.0 -.95 CF ,
4 7/30/02 60' A 11S6; 126.9 10.7 "11.0 94 CF .'.
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5 7/31/02 52' A. 118.1 126.9 • 89. ILO;' 93 "FG
6 7/31/02 52 A 1165 .12 6.9 101 liO . 92
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FG
'NOTES;,* -
4
CF -Compacted F11 .' -
F3 FiHshed. Grade
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TABLE 2
LABORATORY TEST RESULTS S ,•
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Sample Sample '- Maximum 0ptimurT
Number Description p_Density Moisture
* 4
A, Light brown silty fine 126:9 pf 111.0%
to medium sand (SM)
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WALNUT AVENUE
FIELD DENSITY TEST LOCATION MAP
N S LEGEND
Project No. 106E61 . S Approximate location of
Proposed Nayudu Residence S 6 field density test
3286 Lincoln Street
Carlsbad, California -
JL Approximate limits of fill
Scale (approximate):, 1 inch 20-feet •
Base Map: Site Plan prepared by •
Edward M. Eginton, Architect, Inc.,
dated lecember 1998 - FIGURE 1
SGC
4 .4
FROM BESEMER 'FAX NO Oct 01 2002 10 02M P4
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Project No 106E61
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. Field and Laboratory Tests . --• - . r '-- -
- . - -- --- S . .'• • . - . S .
Field density tests were performed.-in general accordanc'e with ASThM D1556 (Sand-
Cone Method) The rosult4's of the field density tests9 are presented in Table 1
(Summary of Field'4 Density Tests) The app roximat locations of the field density tests
are showh on Figure 1 (Field Density Test Location Map)
1
The laboratory maximum dry density and optimum moisture content of a representative
sample of the imported fill ôils pled at the site were determined ir-i4 general
acco'rdance with ASTM test designattonD1 557 The results of the laboratory test are
summarized in Table 2 (Laboratory Test Results)
. * 4 . 445
;:I 4s*
conclusions
Our geotechnical observations and fieldand labortory test results indicate that the fill
soils placed to date have been compacted to at last 90 percent relative compaction,
As, evaluated using test methods AST F1 Dl 556 and ASTM`151557*. The fill soils
generally consist of light brown silty fine to medium sand The fill soils are genrally
similar to soils in the general site vicinity found tc have a very low to tow expansion
4 potential when tested in general accordance with LJBC test standard 18-2 Field
density testing of any additional compacted fill and retaining wall backfill should be
performed by the gee-technical consultant 4
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FROM ESEMER FAX NO Oct 01 2002 10 02nM P5
- - Project No. 106E61
4 5 5! •_S SS S -t - .s
If you have any questions regarthngthis report, please contact our office We
appreciate this. opportunity to be-of service-. -. -- •:
I 1 -
Sincerely, - -
- -
•.
-SOUTHLAND GEOTECHNJCAL CONSULTAtJTS
'..
. stenborder, CEG 1386
- Cha r '& C rbin, RCE 36302
gineering Geologist Pr,p'ect Engineer
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Attachments Table 'l — Summary of Field DensityTests
i;-: Table 2 - Laboratory Test Results -. S
Figure 1 — Field Density Test Location Map
Distribution (3) Addressee
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