HomeMy WebLinkAboutCDP 2018-0040; RAUM RESIDENCE; RESPONSE TO THIRD PARTY SECOND REVIEW; 2019-05-22.-..
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EAST COUNTY SOIL CONSULTATION
AND ENGINEERING, INC.
10925 HARTLEY ROAD SUITE I
SANTEE CALIFORNIA 92071
619 258-7901
fax 619 258-7902
Mr. David Raum
261 Apple Blossum Lane
Vista, California 92084
Subject:
References:
Dear Mr. Raum
Response to Third Party Second Review
Proposed Single-Family Residence
1587 Triton Street
Carlsbad, California 92009
See Attached
May 22, 2019
Project No. l l-l l 27C5
RECEIVED
JUN 18 2019
LAND DEVELOPMENT
ENGINEERING
In accordance with your request, we have prepared this report to address the third party second
review comments from NV5 West, Inc. for the proposed single-family residence at the subject
site.
Comments I and 3
We have reviewed the referenced geotechnical reports and structural building plans prepared by
Omega Engineering Consultants of La Mesa California and dated July 7, 2011 for the design of
the proposed mechanically stabilized earth (MSE) retaining wall located on the western property
boundery. Based on our field observations and density testing, it is our opinion that the
appropriate design values were incorporated into the deign of the MSE wall including
superimposed loads such as vehicle and seismic loads.
Comment 2
The proposed concrete driveway and parking is planned to be located immediately adjacent to the
top of the MSE wall. Therefore, we recommend that the upper 12 inches ofsubgrade should be
scarified, moisture-conditioned within 2 percent over optimum and compacted to at least 95
percent relative compaction (ASTM DJ 557). PCC pavement should be a minimum of 3,500 psi
concrete. It is recommended that steel reinforcement be provided for PCC pavements which will
be subject to heavy impact loading, such as fire trucks. Minimum reinforcement for such slabs
should consist of #3 deformed rebar placed at 18-inch centers each way. Placement of concrete,
control/ expansion joints, and any reinforcement should be conformance with ACI specifications
and the Structural Engineer's design.
RECORD COPY
Initial Date ---~
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Daviir-. J'Uml 1587 Triton Street/ Carlsbad Project No. 'r .~/ I 27C5
If we can be of further assistance, please do not hesitate to contact our office.
Respectfully submitted,
amadou Saliou Diallo, P.E.
RCE 54071, GE 2704
MSD\md
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DaviJ..::t!Jm/ 1587 Triton Street/ Carlsbad Project No., . .// / 27C5
REFERENCES
I. "Soils Report Update, Proposed Single-Family Residence, 1587 Triton Street, Carlsbad,
California 92009", Project No. I I-l l 27C5, Prepared by East County Soil Consultation and
Engineering, Inc., Dated October 19, 2018.
2. "Soils Report Update, Proposed Single-Family Residence, 6575 Black Rail Road (Lot No. 2),
Carlsbad, California 92009", Project No. l l-I l 27C5, Prepared by East County Soil Consultation
and Engineering, Inc., Dated September 27, 20 I 2.
3. "Report of Field Density Tests, Proposed Single-Family Residence, 6575 Black Rail Road (Lot
No. 2), Carlsbad, California 92009", Project No. l 1-1127C5, Prepared by East County Soil
Consultation and Engineering, Inc., Dated August 23, 2011.
4. "Transfer of Geotechnical Responsibility, Geotechnical Engineer of Record, Two Proposed
Single-Family Residences, 6575 Black Rail Road, City of Carlsbad, California", Prepared by
East County Soil Consultation and Engineering, Inc., Dated July 11, 2011.
5. "Geotechnical Update, Parcel I of Parcel Map 19411, APN 215-070-39, Carlsbad, San Diego
County, California," W.O. 6087-A-SC, Prepared by Geosoils Inc. Dated June 16, 2010.
6. "Final Compaction Report of Grading, Building Pad Area, Parcel 4, 6575 Black Rail Road,
Carlsbad, San Diego County, California," W.O. 34601-B-SC, Prepared by Geosoils Inc. Dated
September 14, 2004.
7. "Preliminary Geotechnical Investigation, 6575 Black Rail Road, Proposed Subdivision, Carlsbad,
San Diego County, California", W.O. 3460-A-SC, Prepared by GeoSoils Inc., Dated November
27, 2002.
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