HomeMy WebLinkAboutSDP 16-12; CARLSBAD VETERANS HOUSING; THIRD PARTY GEOTECHNICAL REVIEW (FIRST); 2020-03-31HETHERONGTON ENGINEERING, INC.
SOIL & FOUNDATION ENGINEERING • ENGINEERING GEOLOGY • HYDROGEOLOGY
March 3.f, 2020
Project No. 9090.1
Log No. 20940
City of Carlsbad
*163 5 Faraday Avenue 1
CarlbadC lifornia 9200873. 14
- 11l Attention.: 1 Mr. David Rick
Subject: THIRD-PARTY GEOTECHNICAL REVIEW (FIRST)
Proposed Th'i'èe-Story Apartment Building
3606-3618 and 3630 Harding Street
Carlsbad, California -
:' Prcject ID: GR2020-00.07
• -Reference
*
Attached
H' 'I Dear Mi.) Rick:
U • In accordance with your request, Hetherington Engineering, Inc. has provided third-party
geotechnical review of Refeiences I through 4 The following comments are provided for
analyses 4and/oi response by the Geotechnical Consultant
- liii ••
REVIEW OF GEOTECHNICAL REPORT
1 The 2019 California Building Code (CBC) and ASCE 7-16 are the governing codes
The Cnsultant should confirm that the geotechnical recommendations are consistent
4 with thé'e documents.,.
ti 2. The Col. should Freview the proj ect grading and foundation plans,. provide any
adthtioial geotechrncal recommendations considered necessary, and confirm that the
plans ha've been prepared in accordance with the geotechmcal recommendations
- 3 The Consultant should provide an updated geotechmcal map/plot plan utilizing the
latest grading plan foi the project to clearly show (at a minimum) a) existing site
topoiaphy, b) pioposed stiuctuies/impiovements, c) pioposed finished grades, d)
locations of the subsurface exploration, e) geologic contacts, and f) remedial grading
limit
4. Referenes 3 and 4,' refer to a Christian Wheeler Engineering geotechnical
investigtion report, dated June 2, 2016 The Christian Wheeler Engmeeung
geotechiucal investigation report submitted is dated August 4, 2016 (Refeience 2)
4 / 5365 Averda Ericinas, Suite A • Carlsbad, CA 92008-4369 • (760) 931-1917 • Fax (760) 931 0545
333 Third Street Suite ,2 • Laguna Beach CA 92651 2306 • (949) 71&5440 • Fax (760) 931-0545
I
•
5'I
THIRD-PARTY GEOTECHNICAL REVIEW (FIRST)
Project No. 9090.1
Log No, 20940
March31, 2020
Page 2
The Consultant should clarify which Christian Wheeler Engineering report is
intended and confirm that the conclusions and recommendations remain applicable.
Reference 4, dated March 12, 2020, included :onl' pages 1 through 4 and no Plates are
attached The Consultant should submit a complete report.
The Consultant should address whether the site is considered a "Near Fault Site" in
accordance with the 2019 C]3C, Section 1803.5.12.
The Consultant should provide the site Risk Category and Seismic Design Category
consistent with the 2019 CBC.
- 8. The Consultant shOuld provide a detailed description of proposed site grading,
structures/ improvements, etc.
The Consultant should provide grading and/or foundation recommendations for
property line fences.
The Consultant should provide a statement regarding the impact of the 'proposed
grading and construction on adjacent properties and improvements.
The Consultant should provide geotechnical recommendations for temporary
excavations.
The Consultant should provide a list of recommended observation and testiig during
site grading and construction.
HETHERINGTON ENGINEERING, INC
IL.
THIRD, PARTY GEOTECI-INiCA L REVIEW (FIRST)
Project No. 9090. I
Log No: 20940
Maich13l 2020
Page 3.
The opportunity to be ofsérvice is sincerely appreciated. If you have any questions regarding
this reiiew, Please contact this office at your convenience.
Sincerely,
HETHERiNCTON FNGINEERING, INC.
BOGS
Pail IA.Bbogseth
QF
Professional Geologist 3772 153 Civil Engineer 3048
eer
Certified E'hgihe6i-.ihg I
CcitificdHydrogeologist59l 3/31/22). expire
Distributin: 1-via e-mail (David.rick.ca
i-via e-mail Cecilia Fernandez (Ceceilia. Fcrnandezcarlsbadca.gov)
11
HETAERINGTONV ENGINEERING, INC.
REFERENCES
"Report of Preli.rninaiy Recommendations, Affirmed Harding, 3606-3618 and 3630
Harding, Street, Carlsbad, California',, by Christian Wheeler Engineering, dated April
20,2016.
"Report bf Preliminary Géotechnia1 Investigation, Affirmed Harding Street, 3606-361 8
and 3630 Haiding Street, Carlsbad, California", by Christian Wheelei Engineering,
dated August 4, 20,16.
3 "Update Geotechnical Engmeenng Report, Pioposed Three-Story Apaitment Building,
3606-3618 & 3630 Haidmg Street, Carlsbad, California", by NOVA Services linc, dated
January 16, 2020.
4. "Update Geotechnical Engineering Report, Proposed Three-Stoiy Apartment Building,
3606-3618 & 3630 Harding Stteet, Catisbad, California", by NOVA Services Inc., dated
March 1, 2020.
5 "Grading Plans For: Hai-ding Veterans Housing, 3606, 3618, & 3630 Hai-ding Street,
Carlsbad, CA", by Ke'ttIei Leweck Engineering, dated March 16, 2020 (Sheets 1
through 8).
Project No.9090.1
Log No. 20940
HETHERI1IGTOJ ENGUUEERING, INC.