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Home My WebLink About219325-b2 ltr signedHeadquarters Mailing 11345 U.S. Highway 1 P.O. Box 78-1377 Sebastian, FL. 32958 Sebastian, FL. 32978 Orlando Phone: 772-589-0712 723 Progress Way C.A. # 5693 Sanford, FL. 32771 KSMengineering.net Page 1 of 3 February 24, 2022 Eligha Pryor Complete Construction and Design 755 8th Court, Suite #4 Vero Beach, FL. 32962 Re: 1912 Lynx Drive Fort Pierce, Florida KSM Project #: 219325-b2 Dear Mr. Pryor: As requested, KSM Engineering & Testing has performed a subsurface investigation at the above referenced site. The data gathered during the investigation, together with our geotechnical related opinions, are included in this report. Site Description: At the time of drilling, the riverfront site was flat with some light surface vegetation (grass). Site Investigation: The site investigation program consisted of performing four (4) Standard Penetration Test (SPT) borings within the area of the proposed footings for the proposed structure. The borings were terminated at depths of approximately 10 to 15 feet below existing grade on the site at the time of the investigation. These tests were performed to verify that the soil densification performed from February 9, 2022, to February 11, 2022, had been achieved through cement grouting under pressure. The locations of the borings were specified by the client in the field and the approximate locations are indicated on the attached boring Location Plan. The SPT borings were completed in general accordance with procedures described in ASTM D1586. The records of the soils encountered, the SPT penetration resistance values, and groundwater levels that were recorded in the borings are shown on the attached logs. Engineering Evaluation and Conclusions: KSM performed borings in the proposed footing areas in order to assess whether the site subgrade conditions had been properly stabilized through the injection of 1912 Lynx Drive Fort Pierce, Florida KSM Project #: 219325-b2 Page 2 of 3 cementitious grout, under pressure. The discovered post-grout injection subsurface conditions are described as follows: Boring Locations B-1, B-2, and B-4 – The discovered subsurface conditions indicate that the dark gray and dark brown clayed silt with traces of organics deposits were densified from a pre-injection condition that was very loose in consistency to a post- injection condition that ranged from loose to medium-dense, at locations mid-way between the injection pipe locations. Boring Location B-3 – The discovered subsurface conditions indicate that the dark brown clayed silt with organics deposits were mildly densified from a pre-injection condition that was very loose in consistency to a post-injection condition that was generally loose to very loose. Building Subgrade Mitigation Opinions – Based on the results of the post-injection borings, in comparison to the pre-injection borings, it is KSM’s professional opinion that the subsurface soils were improved sufficiently to allow the proposed structure to be supported on a structural steel-reinforced “waffle type” structural slab. The earthwork contractor can continue with the balance of the site preparation work that was delineated in KSM’s December 2, 2021, report. The foundation should subsequently be designed and constructed in accordance with recommendations made in KSM’s December 2, 2021, report. Closure: Standard of Care – This report has been prepared in accordance with generally accepted soil and foundation engineering practices based on the results of the test borings and the assumed loading conditions. No warranties, either expressed or implied, are intended or made. This report does not reflect any variations which may occur between the borings. If variations appear evident during the course of construction, it would be necessary to re-evaluate the recommendations of this project. Construction Phase Services and Report Amendments – Based upon KSM’s post- injection investigation of the subsurface conditions at the above-mentioned project location, the reliance of the recommendations presented within this signed and sealed report is predicated on KSM representative’s involvement to verify that not only have the soils been prepared following the indicated recommendations, but the foundations are installed in compliance within the parameters indicated. The Structural Engineer of Record is responsible for confirming that the estimated capacities provided are adequate for the anticipated loading. If additional capacity is required, KSM is to be notified so that our recommendations can be amended as required. Limitations – Environmental conditions, wetland delineation, water quality, and municipal requirements are not a part of this report. 1912 Lynx Drive Fort Pierce, Florida KSM Project #: 219325-b2 Page 3 of 3 We are pleased to have been of assistance to you on this phase of your project. When we may be of further service to you or should you have any questions, please feel free to contact us. Respectfully, _______________________ _______________________ Robert T. Maxwell, E.I. Joseph A. Eduardo, P.E. Geotechnical Engineer Senior Geotechnical Engineer Florida E.I. No. 1100024249 Florida License No. 33318 2/24/2022 JAE/cv/RTM Email to: pandvproperties@gmail.com 02-24-2022 Soil Boring Location Plan 1912 Lynx Drive Fort Pierce, Florida KSM Project #: 219325-b2 NOT TO SCALE 20220218219325-b2 PROJECT: DATE: SCALE: SHEET OF DRAWN BY: DESIGNED BY: PROJECT #: C.V. C.C.C.1 1912 Lynx Drive, Fort Pierce, Florida PERMIT #: 1 LOCATION OF SOIL TESTING B-2 B-1 B-3 B-4 Soil Boring Logs 1912 Lynx Drive Fort Pierce, Florida KSM Project #: 219325-b2 Brown Sand, Slightly Clayed Brown Sand Gray Sand, Slightly Silty with Traces of Shell Dark Gray Clayed Silt with Traces of Organics Gray Sand, Slightly Silty No Sample Recovered Bottom of borehole at 15.0 feet. SS SS SS SS SS SS SS 2-2-3 (5) 5-8-11 (19) 6-6-8 (14) 4-3-2 (5) 2-6-11 (17) 3-4-5 (9) 5-5-5 (10) NOTES See Attached Location Plan GROUND ELEVATION LOGGED BY SF/MH/RC DRILLING METHOD Split Spoon Sample DRILLING CONTRACTOR GROUND WATER LEVELS: CHECKED BY CCC DATE STARTED 2/17/22 COMPLETED 2/17/22 AT TIME OF DRILLING 6.67 ft AT END OF DRILLING --- AFTER DRILLING --- HOLE SIZE inches FINES CONTENT (%) 20 40 60 80 20 40 60 80 PL LLMC DEPTH(ft)0 5 10 15 GRAPHICLOGMATERIAL DESCRIPTION SAMPLE TYPENUMBERRECOVERY %(RQD)BLOWCOUNTS(N VALUE)POCKET PEN.(tsf)DRY UNIT WT.(pcf) SPT N VALUE 20 40 60 80 PAGE 1 OF 1 BORING NUMBER B-1 CLIENT Complete Construction PROJECT NUMBER 219325-b2 PROJECT NAME 1912 Lynx Drive PROJECT LOCATION Fort Pierce, Florida GEOTECH BH PLOTS - GINT STD US LAB.GDT - 2/18/22 15:42 - K:\KSM FILES\21 DOCS (KSM-SERVER)\219325\SOIL INVESTIGATION\219325-B2.GPJKSM Engineering & Testing P.O. Box 78-1377 Sebastian, FL 32978 Tel: (772)-589-0712 Fax: (772)-589-6469 KSM Brown Sand, Slightly Clayed Brown Sand Gray Sand, Slightly Silty with Traces of Shell Dark Gray Clayed Silt with Organics Light Gray Sand Bottom of borehole at 10.0 feet. SS SS SS SS SS 2-3-4 (7) 6-8-12 (20) 7-8-9 (17) 8-6-4 (10) 6-11-13 (24) NOTES See Attached Location Plan GROUND ELEVATION LOGGED BY SF/MH/RC DRILLING METHOD Split Spoon Sample DRILLING CONTRACTOR GROUND WATER LEVELS: CHECKED BY CCC DATE STARTED 2/17/22 COMPLETED 2/17/22 AT TIME OF DRILLING 6.25 ft AT END OF DRILLING --- AFTER DRILLING --- HOLE SIZE inches FINES CONTENT (%) 20 40 60 80 20 40 60 80 PL LLMC DEPTH(ft)0 5 10 GRAPHICLOGMATERIAL DESCRIPTION SAMPLE TYPENUMBERRECOVERY %(RQD)BLOWCOUNTS(N VALUE)POCKET PEN.(tsf)DRY UNIT WT.(pcf) SPT N VALUE 20 40 60 80 PAGE 1 OF 1 BORING NUMBER B-2 CLIENT Complete Construction PROJECT NUMBER 219325-b2 PROJECT NAME 1912 Lynx Drive PROJECT LOCATION Fort Pierce, Florida GEOTECH BH PLOTS - GINT STD US LAB.GDT - 2/18/22 15:42 - K:\KSM FILES\21 DOCS (KSM-SERVER)\219325\SOIL INVESTIGATION\219325-B2.GPJKSM Engineering & Testing P.O. Box 78-1377 Sebastian, FL 32978 Tel: (772)-589-0712 Fax: (772)-589-6469 KSM Brown Sand, Slightly Clayed Brown Sand, Slightly Clayed with Traces of Shell Fragments Dark Brown Sand, Slightly Silty and Slightly Clayed Gray Sand, Slightly Silty with Some Shell Dark Brown Clayed Silt with Organics Gray Sand with Traces of Shell No Sample Recovered Bottom of borehole at 15.0 feet. SS SS SS SS SS SS SS 2-1-3 (4) 18-15-13 (28) 9-9-10 (19) 9-6-3 (9) 1-1-2 (3) 2-4-4 (8) 3-4-4 (8) NOTES See Attached Location Plan GROUND ELEVATION LOGGED BY SF/MH/RC DRILLING METHOD Split Spoon Sample DRILLING CONTRACTOR GROUND WATER LEVELS: CHECKED BY CCC DATE STARTED 2/17/22 COMPLETED 2/17/22 AT TIME OF DRILLING 5.67 ft AT END OF DRILLING --- AFTER DRILLING --- HOLE SIZE inches FINES CONTENT (%) 20 40 60 80 20 40 60 80 PL LLMC DEPTH(ft)0 5 10 15 GRAPHICLOGMATERIAL DESCRIPTION SAMPLE TYPENUMBERRECOVERY %(RQD)BLOWCOUNTS(N VALUE)POCKET PEN.(tsf)DRY UNIT WT.(pcf) SPT N VALUE 20 40 60 80 PAGE 1 OF 1 BORING NUMBER B-3 CLIENT Complete Construction PROJECT NUMBER 219325-b2 PROJECT NAME 1912 Lynx Drive PROJECT LOCATION Fort Pierce, Florida GEOTECH BH PLOTS - GINT STD US LAB.GDT - 2/18/22 15:42 - K:\KSM FILES\21 DOCS (KSM-SERVER)\219325\SOIL INVESTIGATION\219325-B2.GPJKSM Engineering & Testing P.O. Box 78-1377 Sebastian, FL 32978 Tel: (772)-589-0712 Fax: (772)-589-6469 KSM Brown Sand, Slightly Clayed Dark Brown Sand Dark Brown Sand, Slightly Silty with Traces of Clay Dark Brown Clayed Silt with Organics Gray Sand with Traces of Shell Bottom of borehole at 10.0 feet. SS SS SS SS SS 2-4-6 (10) 8-12-13 (25) 6-8-8 (16) 3-2-3 (5) 1-1-6 (7) NOTES See Attached Location Plan GROUND ELEVATION LOGGED BY SF/MH/RC DRILLING METHOD Split Spoon Sample DRILLING CONTRACTOR GROUND WATER LEVELS: CHECKED BY CCC DATE STARTED 2/17/22 COMPLETED 2/17/22 AT TIME OF DRILLING 5.92 ft AT END OF DRILLING --- AFTER DRILLING --- HOLE SIZE inches FINES CONTENT (%) 20 40 60 80 20 40 60 80 PL LLMC DEPTH(ft)0 5 10 GRAPHICLOGMATERIAL DESCRIPTION SAMPLE TYPENUMBERRECOVERY %(RQD)BLOWCOUNTS(N VALUE)POCKET PEN.(tsf)DRY UNIT WT.(pcf) SPT N VALUE 20 40 60 80 PAGE 1 OF 1 BORING NUMBER B-4 CLIENT Complete Construction PROJECT NUMBER 219325-b2 PROJECT NAME 1912 Lynx Drive PROJECT LOCATION Fort Pierce, Florida GEOTECH BH PLOTS - GINT STD US LAB.GDT - 2/18/22 15:42 - K:\KSM FILES\21 DOCS (KSM-SERVER)\219325\SOIL INVESTIGATION\219325-B2.GPJKSM Engineering & Testing P.O. Box 78-1377 Sebastian, FL 32978 Tel: (772)-589-0712 Fax: (772)-589-6469 KSM