HomeMy WebLinkAboutSDP 2018-0020; 540 CHESTNUT SFR; THIRD PARTY GEOTECHNICAL REVIEW (SECOND); 2020-07-06I HETHEROR!TON E NGI NEERING, HI I
SOIL & FOUNDATION ENGINEERING • ENGINEERING GEOLOGY OHYDROGEOLOGY
July 6, 2020
Project No. 9096.1
Log No. 21040
City of Carlsbad
1635 Faraday Avenue
Carlsbad, California 92008-73 14
Attention: Mr. David Rick
Subject: THIRD-PARTY GEOTECHNICAL REVIEW (SECOND)
Proposed Residential Development
540 Chestnut Avenue
Carlsbad, California
Project ID: GR2020-0009/SDP2020-0008/DWG 523-6A
References: Attached
Dear Mr. Rick:
In accordance with your request, Hetherington Engineering, Inc. has provided third-party
geotechnical review of Reference 4. Based on our review, the Geotechnical Consultant has
responded to our prior comments and we have no additional comments. Observation and
testing by the Geotechnical Consultant during grading and construction should be required to
verify anticipated conditions or to revise the geotechnical recommendations as considered
necessary. A final geotechnical report of grading and construction should be required.
The opportunity to be of service is sincerely appreciated. If you have any questions regarding
this review, please contact this office at your convenience.
Sincerely,
HET NOT NO, INC.
D r to OSSIOk Paul A. Bogseth
Civil Engineer 30 $thER/4Q 4 Professional Geologist 3772
Geotechnical Eng' 7 Certified Engineering Geologist 1153
(expire 3/31/22)
Cn 0.g7 Certified Hydrogeologist 591
' (expires 3/31/22)
#'L
Distribution: I-via e-mail Dvid Rick (David.Rickcarlsbadca.gov)
I-via e-mai I Cecilia Fernandez (Cecilia .FernandezcarIsbadca.gov)
5365 Avenida Enemas, Suite A • Carlsbad, CA 92008-4369 • (760) 931-1917 • Fax (760) 931-0545
333 Third Street, Suite 2 • Laguna Beach, CA 92651-2306 • (949) 715-5440 • Fax (760) 931-0545
www.hetheringtonengineering.com
REFERENCES
"Grading Plans For: 540 Chestnut Avenue", by Civil Landworks, dated February 27, 2020
(Sheets I through 5).
"Geotechnical Investigation, Proposed Residential Development, 540 Chestnut Avenue,
Carlsbad, California", by Construction Testing & Engineering, Inc., dated February 25,
2020.
"Third-Party Geotechnical Review (First), Proposed Residential Development, 540 Chestnut
A venue, Carlsbad, California, Project ID: GR2020-0009", by Hetherington Engineering,
inc., dated April 2, 2020.
"Response to City of Carlsbad Third-Party Geotechnical Review (First), Comments from
Hetherington Engineering, Inc., Project Number: 9096.1, Dated April 2, 2020, Project ID:
GR2020-0009, 540 Chestnut Avenue, Carlsbad, California", by Construction Testing &
Engineering, Inc., dated May 15, 2020.
"Grading Plans For: 540 Chestnut Avenie", by Civil Landworks, dated June 22, 2020
(SheelEs 1 through 6).
Project No. 9096.
Log No. 21040
HETHERINGTON ENGINEERING, INC.