HomeMy WebLinkAboutPD 2018-0009; BASSWOOD AVENUE RESIDENCE; FINAL SOILS REPORT; 2019-04-08 GEOTECHNICAL – CIVIL - SURVEY 17579 EL CAJON DRIVE HESPERIA, CA 92345
PH: (562) 397-5229 aesoiltest@gmail.com
April 8, 2019 ENG-19-009 Shanup Patel
1231 Basswood Avenue Carlsbad, Ca 92008 Subject: Compaction Report for the Proposed Two-Story Dwelling with an attached
Two-Car Garage; 1231 Basswood Avenue, Carlsbad, CA
Gentlemen:
This presents the results of soil compaction testing at the subject site. The work was in
conjunction with the grading operations to prepare the property for the construction of the
proposed two-story dwelling with an attached two-car garage to be located on the site
(Plate 1).
All soils within the limits of the proposed building perimeters plus at least 5 feet to the
sides were removed to a maximum depth of 4.5 feet below the proposed sub-grade. After the
bottom of the excavation areas were inspected and approved by this firm, the top 6 inches of the
exposed surfaces were scarified, watered as needed to reach their near-optimum moisture content
and thoroughly-compacted. The inspection reports of the bottom of the excavation areas were
given to the grading contractor.
A.E. ENGINEERING
Basswood Ave. 2 ENG-19-009
A.E. ENGINEERING
Soil was then placed in 8-inch maximum thickness layers. The bottom layer and each
subsequent layer was watered as needed to reach their near optimum moisture content and
thoroughly-compacted with a Caterpillar Track Loader, until the approximated sub-grades were
achieved.
Based on the test results, it is certified that the soils tested were thoroughly-compacted to
a minimum relative compaction of 90 percent based on laboratory maximum compaction value
obtained using ASTM Method D1557. The compaction tests were performed by the Sand Cone
Method, ASTM Method S1556. The test results are shown on the attached page and their
locations are shown on the attached Plot Plan (Plate 1).
This should provide the requested information. Please call if there are any questions.
Respectfully submitted,
A.E. Engineering
Gilberto Millot Alejandro Encizo Chief Engineer Project Engineer R.C.E. # 53464
Exp. 06-30-19
Attachments: Tables 1 and 2
Plot Plan Certificate ~~J~A;p
Basswood Ave. 3 ENG-19-009
A.E. ENGINEERING
TABLE 1 SUMMARY OF FIELD COMPACTION TESTS ASTM METHOD D1556: SAND CONE METHOD
Test
No.
Test Date Dept
h, in
ft.
Soil
Type
Dry Weight
pcf
Soil
Moisture
%
Relative
Compaction
%
1 3-19-19 2.5 A 108.3 14.6 94.2
2 3-19-19 2.5 A 108.8 14.6 94.6
3 3-20-19 1 A 108.2 14.1 94.1
4 3-20-19 1 A 108.4 14.1 94.3
5 3-26-19 2.5 A 109.5 15.0 95.2
6 3-27-19 1 A 109.9 14.7 95.6
7 3-30-19 0.4 A 108.6 14.5 94.4
8 3-30-19 0.4 A 109.3 14.3 95.0
9 3-30-19 0.4 A 109.0 14.4 94.8
TABLE 2 LABORATORY MAXIMUM COMPACTION ASTM D1557
Soil Type
Soil Classification
Maximum
Compaction, pcf
Optimum Moisture %
A
Silty Sand, fine to
medium grained, dark brown (On-Site)
115.0
13.5
Note: The test depths are referenced from the approximated sub-grade elevation.
CITY OF CARLSBAD
ENGINEERED GRADING
CONSULTANT STATEMENT
Job Address,
or Tract No.: 1231 BASSWOOD AVENUE Locality: CARLSBAD, CA
Owners: ___SHANUP PATEL______ Contractor: _ _
Permit No.: ____________
BY SOILS ENGINEER
Based upon tests and observations, the earth fills placed on the following lot(s) were installed upon
properly prepared base materials and compacted in compliance with requirements of Building Code
Section 3313. Fill slope surfaces have been compacted and buttress fills or similar stabilization measures
have been installed in accordance with my recommendations as approved by the Building Official. Sub-
drains have been provided where required and locations of said sub-drains are shown on plans dated.
Lot(s) No(s).
See report dated April 8, 2019 for compaction test data and procedure, recommended allowable soil
bearing value and other special recommendations.
Expansive Soils No, Lot(s) No(s). NO
Buttress No, Lot(s) No(s). No
Remarks: None
ENGINEER: Reg. No. 53464 Date:__4-08-19______
Gilberto Millot Exp. 06-30-19