HomeMy WebLinkAboutAPPROVED 3330.2100281.0000 - Tarpon Flats Lot 1 digi
November 3, 2021
Phoenix Custom Homes, LLC
Attn: Ms. Fran Donza
1760 N Job Road, Suite 120
West Palm Beach, FL 33411
Re: Letter for Foundation Soil Density and Bearing Capability
Tarpon Flats – Lot 1
Lot 1, SW of Bonita Isle Drive & A1A, Port St. Lucie FL
UES Project No. 3330.2100281.0000
Dear Ms. Donza:
Universal Engineering Sciences (UES) (Formerly GFA) performed one (1) cone penetrometer test (CPT)
soundings advanced to an approximate depth of 15 feet below ground surface at the above referenced
property. The location of the boring is illustrated on the attached Test Location Plan. The subsurface
exploration activities were performed in accordance with Chapter 18 of the 20 20 Florida Building Code,
Seventh Edition and applicable ASTM standards. Detailed information for the subsurface conditions
encountered in the boring is contained on the attached auger boring log.
Based on the test results, the soils upon which the referenced structure will be founded are capable of
providing a maximum allowable bearing capacity of 2,500 pounds per square foot (psf) subject to the
limitations noted herein. We recommend that the footings bear at a depth of at least 12 inches below finish
grade measured from the lowest adjacent grade. We also recommend a minimum footing width of 18 inches
for spread footings and 16 inches for monolithic footings, but not less than 8 inches more than the width of
the imposed wall.
This report does not state or imply that the foundation soils at the bearing level will remain in the same
condition in which they were found during the subsurface exploration activities. Exposure to the environment
may weaken the foundation soils at the bearing level if the foundation excavations remain open for an
extended period, or if the soils become saturated from rainfall. Therefore, UES recommends that the
excavations for wall and column footings be performed to final design grade and foundation concrete be
placed as soon as practicable to reduce the potential for deterioration of the bearing soils.
The geology of the site as mapped on the USDA Soil Survey website consists of Canaveral fine sand, 0 to 5
percent slopes (10). These are sandy soils and organic soils are not indicated. In addition, no unsuitable
bearing materials were observed in the borehole, and only normal site preparation should be required for
construction.
It is recommended that the 2 feet of soils below existing grade, below the bottom of all new footing
excavations and slabs, and all fill material be compacted to at least 95 percent of the modified Proctor (ASTM
D 1557) maximum dry density prior to placement of concrete for the footings.
Proposed One- or Two-Story Residence November 3, 2021
Lot 1, Tarpon Flats, Port St. Lucie, Florida Page 2
UES Project No. 3330.2000281.0000
We appreciate the opportunity to be of service to you on this project and look forward to a continued
association. Please contact the undersigned if you have any questions or comments, or if we may further
assist you as your plans proceed.
UES appreciates the opportunity to assist you during this phase of the project. Please contact us if you have
any questions or require additional information.
Respectfully Submitted,
Universal Engineering Sciences
Florida Registry No. 4930
This item has been digitally signed and sealed by Allan G. Abubakar, P.E. on the
date adjacent to the seal. Printed copies of this document are not considered
signed and sealed and the signature must be verified on any electronic copies.
Allan G. Abubakar, P.E. Erik Soderstrom, E.I.
Sr. Project Engineer Geotechnical Dept. Manager
Florida Registration No. 69952
Test Location Plan
Tarpon Flats – Lot 1
SW of Bonita Isle Drive & A1A, Fort Pierce, Florida
Project No. 3330.2100281.0000 Drafted by: JR Reviewed By: AA Date: 12/31/2013
N
CPT -1
Legend
Approximate CPT Location
Client:Date:12/31/2013
Project No.:3330.2100281.0000
Project:
Field Crew:PM/RL
Rig ID:OshKoshLocation:
Page:1 of 1
Elevation:
P P+S
Depth
15 30 4.4 0.2 0.66
50 60 100 2.6 0.4 1.31
90 110 180 0.4 0.6 1.97
35 40 70 2.3 0.8 2.62
8 20 16 6.6 1.0 3.28
19 27 38 4.5 1.2 3.94
55 68 110 1.8 1.4 4.59
50 65 100 2.2 1.6 5.25
45 62 90 1.5 1.8 5.91
65 75 130 1.5 2.0 6.56
55 70 110 2.0 2.2 7.22
48 65 96 1.4 2.4 7.87
65 75 130 1.2 2.6 8.53
58 70 116 2.0 2.8 9.19
45 63 90 0.9 3.0 9.84
52 58 104 1.3 3.2 10.50
60 70 120 1.1 3.4 11.15
60 70 120 1.1 3.6 11.81
50 60 100 0.9 3.8 12.47
38 45 76 1.7 4.0 13.12
35 45 70 1.5 4.2 13.78
52 60 104 2.5 4.4 14.44
70 90 140 1.4 4.6 15.09
65 80 130 2.5 4.8 15.75
55 80 110 2.4 5.0 16.40
100 120 200 1.3 5.2 17.06
120 140 240 1.1 5.4 17.72
180 200 360 0.4 5.6 18.37
240 250 480 ##### 5.8 19.03
250 REF ######6.0 19.69
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
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0.00
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0.00
Field Data qc
(tsf)FR Depth
(meters)
Phoenix Custom Homes, LLC
Tarpon Flats - Lot 1, St. Lucie County, FL
CPT - Lot 1 Back N27.50676° W80.30787°
Existing Grade (At time of exploration)
Universal Engineering Sciences
607 NW Commodity Cove, PORT ST. LUCIE, FLORIDA 34986
PHONE: (772) 924-3575 - FAX: (772) 924-3580
CONE PENETRATION SOUNDING (ASTM D 3441)
0
5
10
15
20
25
30
35
40
0 40 80 120 160 200 240 280 320
Cone Bearing, qc (tsf)Depth (feet)02468
Friction Ratio, FR