HomeMy WebLinkAbout8208 South OceanBackfill Compaction – 3-Level Custom Home 8208 South Ocean Drive, Jensen Beach, FL
22 December 2021 21-179
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3866 PROSPECT AVENUE SUITE 9 WEST PALM BEACH, FLORIDA 33404 (561) 881-1939
22 December 2021
Phoenix Custom Homes
1760 Jog Road, Suite 120
West Palm Beach, FL 33411
Subject: Backfill Compaction – 3-Level Custom Home
8208 South Ocean Drive, Jensen Beach, Florida
Allterra Engineering & Testing performed probe-rod and field-density tests on the compacted
backfill of the subject project. Copies of the field-density test results are attached to this report.
Allterra’s services were performed to meet certain requirements of chapter 18 of the 2020
Florida Building Code and local amendments.
Allterra mobilized to the project site on 29 November and 20 December 2021 to test the backfill
as its was placed and compacted in lifts to achieve construction-ready grade for the ground-
level slab. Based upon the results of the probe-rod and field-density test results, backfill
preparation achieved conventional standards-of-acceptance for well compacted soil (at least 95
percent of maximum-dry-density) as presented in Allterra’s geotechnical services report dated 1
March 2021.
It shall be the responsibility of the contractor to maintain the condition of the prepared surfaces
to prevent erosion or other degradation. Bearing surfaces shall be kept firm, level and free of
debris, detritus or standing water through placement of concrete.
Please call the undersigned if one has questions about this report or needs other services.
Yours truly,
Allterra Engineering & Testing
Registry No. 9139
Wendell K. Rodgers, PE
Principal Engineer
FL Lic. No. 55960
Attachments
A L L T E R R A
E N G I N E E R I N G & T E S T I N G
This item has been digitally signed and sealed by
Matthew Watts, PE 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 electronic copies.
DocuSign Envelope ID: 9720DEF8-6444-4D14-94B5-0BE7AEC512E0
REPORT OF DENSITY TESTS JOB NO. 21-179
PROJECT Diamond Sands - Plat No. 2 - LOT #31 - 8208 SOUTH OCEAN DRIVE - Jensen Beach, Fl
CLIENT Phoenix Custom Homes
NUMBER OF SAMPLES 6 TESTED BY JF DATE 12/20/21
SOURCE In Place Material REPORTED TO Client
INTENDED USE Compacted Soil - Building Area - FINAL LIFT
SPECIFICATIONS GOVERNING 95% of AASHTO T-180 / ASTM D-1557
LOCATION DEPTH DENSITY PROCTOR % DENSITY
PROPOSED THREE-LEVEL CUSTOM RESIDENCE
Northwest Corner Final
of Building Area Lift 105.5 110.0 95.9
Northeast Corner Final
of Building Area Lift 108.1 110.0 98.3
Southeast Corner Final
of Building Area Lift 106.7 110.0 97.0
Southwest Corner Final
of Building Area Lift 109.3 110.0 99.4
Center of North Half Final
of Building Area Lift 108.0 110.0 98.2
Center of South Half Final
of Building Area Lift 108.4 110.0 98.5
These tests are representative of and apply only to the location and depth shown above
Authorization for publication of statements, conclusions, or extracts from or regarding our reports is reserved pending our written approval
A L L T E R R A
E N G I N E E R I N G & T E S T I N G
3 8 6 6 P R O S P E C T A V E N U E S U I T E 9 W E S T P A L M B E A C H , F L O R I D A 3 3 4 0 4 ( 5 6 1 ) 8 8 1 -1 9 3 9
DocuSign Envelope ID: 9720DEF8-6444-4D14-94B5-0BE7AEC512E0
REPORT OF DENSITY TESTS JOB NO. 21-179
PROJECT Diamond Sands - Plat No. 2 - LOT #31 - 8208 SOUTH OCEAN DRIVE - Jensen Beach, Fl
CLIENT Phoenix Custom Homes
NUMBER OF SAMPLES 6 TESTED BY JF DATE 11/29/21
SOURCE In Place Material REPORTED TO Client
INTENDED USE Compacted Soil - Building Area - 1ST LIFT
SPECIFICATIONS GOVERNING 95% of AASHTO T-180 / ASTM D-1557
LOCATION DEPTH DENSITY PROCTOR % DENSITY
PROPOSED THREE-LEVEL CUSTOM RESIDENCE
Northwest Corner
of Building Area 1st Lift 106.9 110.0 97.2
Northeast Corner
of Building Area 1st Lift 105.8 110.0 96.2
Southeast Corner
of Building Area 1st Lift 106.9 110.0 97.2
Southwest Corner
of Building Area 1st Lift 107.6 110.0 97.8
Center of North Half
of Building Area 1st Lift 105.1 110.0 95.6
Center of South Half
of Building Area 1st Lift 106.2 110.0 96.6
These tests are representative of and apply only to the location and depth shown above
Authorization for publication of statements, conclusions, or extracts from or regarding our reports is reserved pending our written approval
A L L T E R R A
E N G I N E E R I N G & T E S T I N G
3 8 6 6 P R O S P E C T A V E N U E S U I T E 9 W E S T P A L M B E A C H , F L O R I D A 3 3 4 0 4 ( 5 6 1 ) 8 8 1 -1 9 3 9
DocuSign Envelope ID: 9720DEF8-6444-4D14-94B5-0BE7AEC512E0
3 8 6 6 P R O S P E C T A V E N U E S U I T E 9 W E S T P A L M B E A C H , F L O R I D A 3 3 4 0 4 ( 5 6 1 ) 8 8 1 -1 9 3 9
PROJECT Proposed Three-Level Custom Residence - Diamond Sands - Plat No. 2 - LOT #31 - 8208 SOUTH OCEAN
CLIENT Phoenix Custom Homes DRIVE - Jensen Beach, Fl
DATE SAMPLED 11/29/21 SAMPLED BY JF
DATE TESTED 11/30/21 TESTED BY MS
SOURCE In Place REPORTED TO Client
SPECIFICATIONS GOVERNING 95% of AASHTO T-180 / ASTM D-1557
REMARKS/DESCRIPTIONS OF MATERIAL
T-180 / D-1557
Compacted Soil
Brown Fine Sand, trace of shell
1ST LIFT
111.0
110.0
DRY WEIGHT 109.0
108.0
107.0
9.0 10.0 11.0 12.0 13.0
% MOISTURE
MAXIMUM DENSITY 110.0 POUNDS PER CUBIC FOOT
OPTIMUM MOISTURE CONTENT 11.0 PERCENT
MOISTURE/DENSITY CURVE MAY NOT REFLECT LABORATORY CONFIGURATION
JOB NO. 21-179 REPORT OF PROCTOR ANALYSIS
Authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written approval.
A L L T E R R A
E N G I N E E R I N G & T E S T I N G
DocuSign Envelope ID: 9720DEF8-6444-4D14-94B5-0BE7AEC512E0