HomeMy WebLinkAboutSDP2 2018-0011; GOMEZ RENOVATION; PREMEABLE PAVEMENT RECOMMENDATIONS; 2019-09-11onc 'ia
Soil and Foundation Engineering
7840 EL CAJON BLVD., SUITE 200 LA MESA, CALIFORNIA 91942
Phone: (619) 462-9861 • Email: clamonte@flash.net • Fax: (619) 462-9859
September 11, 2019
TO: Darren Machuisky
3508 Woodland Way
Carlsbad, CA. 92008
RECT1VEI1
SEP 12) 2019
LAND DEVELOPMENT
ENGINEERING
SUBJECT: PERMEABLE PAVEMENT RECOMMENDATIONS
Proposed Single-family Residence
3159B Madison Street 4
Carlsbad, CA
Reference: Report of Limited Geotechnical Investigation, Proposed Single-family
Residence, 3159B Madison Street, Carlsbad, CA, by cwl
In accordance with your request and as required by the City of Carlsbad, we are providing
recommendations for permeable pavement. The USDA Soil Survey Map locates the site
within the Marina loamy coarse sand, 2 to 9 percent slopes (MIC). M1C is classified as
Hydrologic Soil Group "B" with no hydric soil rating. Further, the materials encountered
during the course of the geotechnical investigation are consistent with HSG A or B soils
consisting of silty to slightly silty, fine to medium sand (SM).
Although no infiltration testing was conducted it is assumed full infiltration is feasible for
a permeable pavement system, based on the textural soil characteristics and soil inap.
Attached is a typcal detail for Permeable Pavement with Full Exjiltration toSoil
Sub grade, provided by the Interlocking Concrete Pavement Institute. This drawing may be
used as a guideline for designing the pavement system. Compaction of the pavement
subgrade should be held to a minimum.
If you should have any questions after reviewing this report, please do not hesitate to
contact our office. This opportunity to be of professional service is sincerely appreciated.
Respectfully submitted,
R.C.E.
C.W. La Monte Company Inc.
12/31/2019 2/31/2019 L13 ~z
Clifford W. La Monte, No. 25241 Nck- 4:95,, 25241, GE 0495 civy. 2
TYP. NO.8 AGGREGATE IN OPENINGS -
CONCRETE PAVERS MIN. 3 1/8 IN. (80 MM) THICK
-L------------
CURB/EDGE RESTRAINT WITH CUT-OUTS
FOR OVERFLOW DRAINAGE (CURB SHOWN)
VV I I I I
.....
..fr . .
.
• •
o 0 000 00 0 D0 0)0 0)0 000 000 I I I__ I 0c303b
DO 0
'cY500
0
IHhiiiHhiiIH- BEDDING COURSE 11/2 TO 2 IN. (40 TO 50 MM) THICK o80000o
____ (TYP. NO. 8 AGGREGATE)
4 IN. (100 MM) THICK NO. 57 STONE ge6_) Q:), I'D 0 pbdDc) 00~7-11
- OPEN-GRADED BASE
000- 0
- GEOTEXTILE ON SIDE AND TOP OF SUBBASE
—MIN.61N.(I5OMM)THICK
NO. 2 STONE SUBBASE
OPTIONAL GEOTEXTILE ON BOTTOM
SOIL SUBGRADE
NOTES:
23/8 IN. (60 MM) THICK PAVERS MAYBE USED IN PEDESTRIAN APPLICATIONS.
NO.2 STONE SUBBASE THICKNESS VARIES WITH DESIGN.
CONSULT ICPI PERMEABLE INTERLOCKING CONCRETE PAVEMENT MANUAL.
ED PERMEABLE PAVEMENT WITH FULL
EXFILTRATION TO SOIL SUBGRADE
DRAWING NO.
ICPI-68
SCALE
NO SCALE