The URL can be used to link to this page

Home My WebLink AboutObservations of Drilled Pier Installations 07.10.17H -P~KUMAR Geotechnical Engineering I Engineering Geology Materials Testing I Environmental 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email: hpkglenwood@kumarusa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado July 10, 2017 Nick Daley 4249 Lenox Boulevard Venice, Florida 34293 (n pdalev@pc isys .net) Project No. 17-7-143.A Subject: Observation of Drilled Pier Installations, Proposed Residence, Lot 24, Spring Ridge Reserve, 43 Hidden Valley Drive, Garfield County, Colorado Gentlemen: As requested, a representative of H-P/Kumar observed the drilled pier installations at the subject site on June 21 and 22, 2017 for building foundation support. The findings of our observations are presented in this report. We previously provided recommendations for a drilled pier design in a report dated March 10, 2017, Project No. 17-7-143 . The pier drilling observations were performed in addition to our agreement for professional services with Nick Daley dated January 25, 2017. The residence foundation was designed by Lindauer-Dunn to be supported on drilled piers in soil areas and spread footings in rock areas of the excavation. The rock was exposed along the west side of the building excavation. Our observations of the pier hole drilling are presented in the attached Drilled Pier Observation Reports . The pier holes were observed to have fully penetrated the alluvial fan deposits and adequately embedded in the underlying bedrock. Based on the previous subsmface exploration and our current observations at the site, the installed piers appear adequate to support the recommended design values and pier load capacities. The findings submitted in this letter are based on our observation of the pier installations, our experience in the area and the previous subsurface exploration at the site. Variations in the subsurface conditions could increase the risk of foundation movement. Our services do not include determining the presence, prevention or possibility of mold or other biological Nick Daley July 10, 2017 Page2 contaminants (MOBC) developing in the future. If the client is concerned about MOBC, then a professional in this special field of practice should be consulted. If you have any questions or need further assistance, please call our office. Sincerely, H-P~KUMAR SLP/ljf Attachments: Report of Drilled Pier Observations, June 21 and 22, 2017 cc: Robert Parrington (roberr.parrington @yahoo .com) Matt Daugherty (m.dconsulting @hotrnail.com) H-P~KUMAR Project No. 17·7·143.A H-P ~l<U M AR 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email: hpkglenwood@kumarusa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado CONSTRUCTION ACTIVITY REPORT Client: Nick Daley P. 0. Box 1856 Leadville, Colorado 80461 Project No.: 17-7-143.A Day: Date: Page: Wednesday 6/21/17 1of3 Project: Proposed Residence, 43 Hidden Valley Drive, Lot 24, Spring Ridge Reserve, Garfield County, Colorado Weather: Clear, light wind, dry Contractor's Construction Activities : Equipment in Use: H-P/Kumar's Site Activities: Verbal Communication: distribution: Nick Daley (npdalev@pclsys.net) Temperature: 65°F at 9:00 am Penley drilled 16 piers today. Pier 16 at southwest corner was not drilled due to very hard rock at surface. Drill rig -Spiradrill The residence will have spread footings bearing on sandstone bedrock at west side and will bear on piers drilled at least 1' into bedrock for rest of foundation. Ten inch diameter piers were changed to 12"per the drillers request. All piers received (4) #5 vertical rebar. No free water was observed in holes and piers will be concreted tomorrow after piers are checked for any caving. Dave with Penley was informed that piers were drilled to proper depths. Matt Daugherty (m.dconsultlng@hotmail.com> Paul Weiser Steven L. Pawlak, P.E. Field Technician Reviewed By /ljf H-P ~l<UMAR 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email: hpkglenwood@kumarusa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado DRILLED PIER OBSERVATION REPORT Client: Nick Daley P. 0. Box 1856 Leadville, Colorado 80461 Project No. 17-7-143.A Day: Date: Sheet: Wednesday 06-21-17 2 of 3 Project: Proposed Residence, 43 Hidden Valley Drive, Lot 24, Spring Ridge Reserve, Garfield County, Colorado General Contractor: Pier No. Pier Total Depth Drilling Contractor: Penley Variation Hole Location Dia. Depth In Overburden In Bedrock Over/Under 1 12" 5' 6" 4' 1%' 2 12" 11' 10' 1' 3 12" 20' 19' 1' 4 12" 24' 23' 1' 5 12" 29' 28' 1' 6 12" 6' 5' 1' 7 12" 5' 4' 1' 9 12" 15' 14' 1' 8 12" 5' 3' 2' Progress Report: 10" piers were changed to 12" for ease of drilling. Copies: Nick Daley lnpdaley@pclsys.net) Matt Daugherty (m.dconsultlng@hotmail.com) /ljf -- -- - -- -- - -- - - Rig Type: Spiradrill Top of Plumb Ground Pier Water (Top of Comment Elev. Elev. Hole) 96' 6" no 96' 6" no 96' 6" no 96'6" no 96' 6" no 96'6" no 96' 6" no 96'6" no 96'6" no Paul Weiser Steven L. Pawlak, P.E. Field Engineer Reviewed By H -P~KUMAR 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email: hpkqlenwood@kumarusa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado DRILLED PIER OBSERVATION REPORT Client: Nick Daley P. 0. Box 1856 Leadville, Colorado 80461 Project No. 17-7-143.A Day: Date: Sheet: Wednesday 06-21-17 3 of3 Project: Proposed Residence, 43 Hidden Valley Drive, Lot 24, Spring Ridge Reserve, Garfield County, Colorado General Contractor: Pier No. Pier Location Dia. 10 12" 11 12" 12 12" 13 12" 14 12" 15 12" 16 Progress Report: Copies: Total Hole Depth 23' 25' 22' 24%' 17' 15' Nick Daley lnpdaley@pcisys.net) Depth In Overburden 22' 23%' 21' 23%' 15' 14' Matt Daugherty lm.dconsultina@hotmall.com) /ljf Drilling Contractor: In Bedrock 1' 1%' 1' 1' 2' 1' Penley Rig Type: Spiradrill Top of Plumb Variation Ground Over/Under Elev. Pier Water (Top of Comment Elev. Hole) --96' 6" no --96' 6" no --96'6" no --96'6" no -99' 11" no -99' 11" no Not drilled, rock at surface Paul Weiser Steven L. Pawlak, P.E. Field Engineer Reviewed By H-P~l<UMAR 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email : hpkglenwood@ kuma ru sa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado CONSTRUCTION ACTIVITY REPORT Client: Nick Daley P. 0. Box 1856 Leadville, Colorado 80461 Project No.: 17-7-143.A Day: Date : Page : Thursday 6/22/17 1of2 Project: Proposed Residence, 43 Hidden Valley Drive, Lot 24, Spring Ridge Reserve, Garfield County, Colorado Weather: Clear, calm, dry Contractor's Construction Activities: Equipment in Use: H-P/Kumar's Site Activities : Verbal Communication : distribution : Nick Daley (npdaley@pci sys .net) Temperature: 81°F at 12:00 pm Penley drilled 3 remaining piers and concreted all 19 piers. Drill rig -Spiradrill All previously drilled piers were checked for caving with none found to have caved. All piers were drilled minimum 1' into bedrock. All piers received (4) #5 vertical rebars. Concrete for piers was sampled for compressive strength testing. Dave with Penley was informed that piers were drilled to proper depths. Matt Daugherty (m.dcons ul ting@hotmail.com) Paul Weiser Steven L. Pawlak, P.E. Field Technician Reviewed By /ljf H -P ~l<UMAR 5020 County Road 154 Glenwood Springs, CO 81601 Phone: (970) 945-7988 Fax: (970) 945-8454 Email: hpkglenwood@kumarusa.com Office Locations: Parker, Glenwood Springs, and Silverthorne, Colorado DRILLED PIER OBSERVATION REPORT Client: Nick Daley P. 0. Box 1856 Leadville, Colorado 80461 Project No. 17-7-143.A Day: Date: Sheet: Thursday 06-22-17 2of2 Project: Proposed Residence, 43 Hidden Valley Drive, Lot 24, Spring Ridge Reserve, Garfield County, Colorado General Contractor: Pier No. Pier Location Dia. 17 12" 18 12" 19 12" Progress Report: Copies: Total Hole Depth 29' 28%' 24' Nick Daley (npdaley@pclsys.net) Depth In Overburden 28' 27' 23 ' Matt Daugherty (m.dconsultlng@hotmail.com) /ljf Drilling Contractor: In Bedrock 1' 1%' 1' Penley Rig Type: Spiradrill Variation Ground Top of Plumb Over/Under Elev. Pier Water (Top of Comment Elev. Hole) -96' 6" No --96' 6" No --96'6" No Paul Weiser Steven L. Pawlak, P.E. Field Engineer Reviewed By