HomeMy WebLinkAboutCDP 2019-0023; HERNANDEZ RESIDENCE; PLAN REVIEW AND RESPONSE TO COMMENT; 2020-02-16GeoTek, Inc.
1384 Poinsettia Avenue, Suite A Vista, CA 92081-8505
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Chris and Ramon Hernandez
3677 Garfield Street
Carlsbad, California
Subject: Plan Review and Response to Comment
3677 Garfield Street
February 16, 2020
Project No.: 3592-SD
Carlsbad, California Mi\R 1 6 2020
Dear Mrs. & Mr. Hernandez: LSB/\0
i:i:ON
This letter has been prepared as a review of the proposed grading and foundation plans and to
respond to a City review comment. The purpose of this review was to form an opinion of the
geotechnical suitability of the plans to support the proposed improvements and for inclusion of
geotechnical design parameters provided in our Preliminary Geotechnical Evaluation, dated October
18, 2019.
PLAN REVIEW
Grading plans prepared by Armstrong & Brooks, Sheets I and 2, were reviewed. Based on our
review of the grading plans, they have been prepared in general accordance with the geotechnical
recommendations contained within the referenced report by this firm.
Foundation plans prepared by PCSD, Sheets SN I, SI, and SD I, were reviewed. Based on our
review of the foundation plans, the plans appear to have been prepared in general accordance
with the geotechnical recommendations with the following exception:
• The foundation stem wall/retaining wall may be suitable to support retained earth,
however no earth pressure parameters have been identified on the plans. The plans
should be modified to reflect the use of proper earth pressures or a letter may be
provided by the structural designer stating the stem wall/retaining walls are suitable to
support design earth pressures provided in our referenced report.
GEOTECHNICAL I ENVIRONMENTAL I MATERIALS
, ..
Hernandez Residence
Plan Review and Response to Comment
3677 Garfield Street. Carlsbad, California
CITY COMMENT AND RESPONSE
February 16, 2020
Project No.: 3592-SD
Pag_e 2
An excerpt of a city of Carlsbad review comment was provided for our response. As provided,
the excerpt appears to be Item 20 from Carlsbad CBR2019-3529 with comment text as follows:
Provide a letter from the soils engineer confirming that the foundation plan, grading plan and
specifications have been reviewed and that it has been determined that the recommendations in
the soils report are properly incorporated into the construction documents (when required by the
soils report). Also please clarifil whether the foundation supporting 2 floors and the roof walking
deck should meet the requirements for the 3-story condition.
The 'Plan Review' portion of this letter has been provided as our review of the foundation and
grading plans, with exceptions noted. The foundation design criteria provided in our referenced
report are provided in consideration of Section 1809 of the California Building Code. This section
of the Code allows for design of footings to support a roof in addition to the stipulated number
of floors. The proposed design of 2 floors and a roof walking deck may be sized using the
recommendations for a 2-story condition. The 3-story condition need not apply unless the design
is modified to include three stories and a roof/roof walking deck.
We appreciate the opportunity to be of service on this project. Please contact the undersigned
if you have any questions.
Respectfully submitted,
GeoTek, Inc . . i;I/ p .,,/. #>.
{/ .,~
Christopher D. Livesey, CEG 273
Project Geologist
Edward H. LaMont, CEG 1892
Principal Geologist
. . ~-
enj in R. Grenis, R
roject Engineer
GEOTEK
Hernandez Residence
Plan Review and Response to Comment
3677 Garfield Street, Carlsbad, California
CITED REFERENCES
February 16, 2020
Project No.: 3592-SD
Page 3
Armstrong & Brooks Consulting Engineers, Inc., Grading Plans for 3677 Garfield St, Carlsbad, CA
92088, APN:204-232-04, 2 Sheets, undated.
California Code of Regulations, Title 24, 2016 "California Building Code."
GeoTek, Inc., In-house proprietary information.
___ , 2014, Preliminary Geotechnical Evaluation for Proposed Residential Development, 3677
Garfield Street, Carlsbad, California", Project No. 3592-SD, dated October 18, 2019.
Paul Christensen San Diego Engineering (PCSD), 2019, Foundation and Structural Plans for
Hernandez Residence, 3677 Garfield Street, Carlsbad, CA 92008, 7 Sheets, Sheet SN I, SI, S2,
S3, SD I, SD2, and SD3, Project No. 19-458, dated October 25, 2019.
GEOTECHNICAL I ENVIRONMENTAL I MATERIALS