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Fld Rpts 41-45 Abbott.pdfFIELD REPORT NELSON Project: GEOTECHNICAL Owner: ASSOCIATES, INC Location 17311 135TH Ave. NE #A-500 Weather: Abbott Residence Derek Abbott 16404 - 75a' Place West, Edmonds, Washington Sunny, 70's Woodinville, WA 98072 Purpose of (425) 486-1669 FAX 481-2510 Visit: Construction Monitoring File No.: 9175B-16 Date: 06/6/2018 Report No: 41 Page 1 of 1 By: ABR We visited the site today at the request of Derek Abbott for the purpose of construction monitoring at the residential development project located at 16404 - 75a' Place West, located in Edmonds, Washington. Upon arrival to the site we met with Derek and Neil with B&D Rockeries. We discussed plans for constructing the rockeries within the eastern portion of the site. The rockeries along the northern and southern property lines would be approximately 2 to 3 feet tall and would replace the existing ecology blocks. The final layout for the upper east -central portion of the site was not established and we were discussing whether or not geogrid reinforcement would be necessary. We did not provide a final recommendation at this time, but plan to be in close contact as the crew begins work on the rockeries. We will return to the site when the earthwork contractors begin grading for the subject rockeries. Our findings and conclusions are based on observations and construction activities observed while on site. Attachment: Signed: a4l- Distribution: FIELD REPORT NELSON Project: Abbott Residence GEOTECHNICAL Owner: Derek Abbott ASSOCIATES, INC Location: 16404 - 75t' Place West, Edmonds, Washington 17311 135' Ave. NE #A-500 Weather: Sunny, 70's Woodinville, WA 98072 Purpose of (425) 486-1669 FAX 481-2510 Visit: Construction Monitoring File No.: 9175B-16 Date: 06/27/2018 Report No: 42 Page 1 of 2 By: ABR We visited the site today at the request of Derek Abbott for the purpose of construction monitoring at the residential development project located at 16404 - 75d' Place West, located in Edmonds, Washington. Upon arrival to the site we met Neil with B&D Rockeries. He informed us that they were focusing on constructing the rockery within the northeastern portion of the property along the northern property line. We observed that the crew had partially removed the 2 to 3 foot high ecology block wall along the northern property line and were in the process of removing the base blocks while digging along the southern side of the wall. We consulted with the contractor and reviewed the NGA rockery design we previously prepared. We recommended the northern and southern rockeries are designed with 1-foot embedment, a 1-foot minimum 2- to 4-inch rock spall base, and a wall drain. Similarly, the east -central rockery should follow these same recommendations, in addition to geogrid reinforcement behind and to the east of the rockery. The geogrid reinforcement should conform to our reinforced rockery wall detail previously prepared for this project. The contractor agreed and inquired about placing two tiered rockeries along the east -central portion of the property rather than one. In our opinion this should be feasible, provided that the walls will not exceed 3- feet in height and are constructed in accordance with our reinforced rockery design detail. We will return to the site to monitor the excavations and progress on the upper rockeries. Our findings and conclusions are based on observations and construction activities observed while on site. Attachment: Site Plan Signed: 04-01414/' _- Distribution: Eot"O(d►s, 4 Nye OR 91156-16 NdT Ta SS E, qLt DA010104F /4PPR�F�wtnrE f�-o H Z MR (0/2-*1i9 rap Z./Z r..1 w w. J,eP U ado- AA 6�LSG yS'< �,wyc� '� �¢A� c�' 1 A -ire FIELD REPORT NELSON Project: GEOTECHNICAL Owner: ASSOCIATES, INC Location: 17311 135TH Ave. NE #A-500 Weather: Woodinville, WA 98072 Purpose of (425) 486-1669 FAX 481-2510 Visit: Abbott Residence Derek Abbott 16404 - 75th Place West, Edmonds, Washington Sunny, 70's Construction Monitoring File No.: 9175B-16 Date: 07/02/2018 Report No: 43 Page 1 of 2 By: ABR We visited the site today at the request of Derek Abbott for the purpose of construction monitoring at the residential development project located at 16404 - 75 h Place West, located in Edmonds, Washington. Upon arrival to the site we met Neil with B&D Rockeries. We observed the rockery along the northern property line was installed. The exposed height above the adjacent ground surface is approximately 2 to 2.5 feet high. We also observed a wall drain daylighting from the western end of the wall. We discussed construction of the rockery along the southern property line. For this rockery we recommended the existing ecology block wall and any underlying loose soils be removed from this area and backfilled with rock spalls back to the desired grade prior to constructing the rockery, the contractor agreed. We were informed that the east -central rockery would be reduced back to one tier with a gentle slope above extending to flatter inclinations near the roadway and property line. We recommended that the permanent slope does not exceed 2H:1 V and is vegetated as soon as possible. We will return to the site to evaluate the compaction of the structural fill material placed behind the east -central rockery within the reinforced fill zone. We will return to the site to monitor the excavations and progress on the upper rockeries. Our findings and conclusions are based on observations and construction activities observed while on site. Attachment: Site Plan Signed:����✓� Distribution: A"A W16VALb Gwl j., l.0,4s, VA Nye W 91}56-16 • NaT -ro sc/JtE; F'j4( D�pyv)NGS "PRa`I-t�tmE I_ ` ..{� ••T�1 COI jpX j* L13 DaR :�/Z/» for z /z s-_. -.I ti - . N! + DT#*-- �aEa'hl., �So s� Qf �on�,�►v tat FTo o ' CR;w woP4- Z CR Coo 10, iov-c p rV.) ors ftem — REcon�m�No� ppk4oviN)a �tzST�NG, gto W AGr. pNt> 10011 $aZC S 61No r- <P ants ryp�U*•• f Ace 'I�sbNr'§ IPr� SST � l+E SILO W, TO FIELD DEPORT NELSON Project: GEOTECHNICAL Owner: ASSOCIATES, INC Location: 17311 135' Ave. NE #A-500 Weather: Woodinville, WA 98072 Purpose of Abbott Residence Derek Abbott 16404 - 75a' Place West, Edmonds, Washington Sunny, 70's (425) 486-1669 FAX 481-2510 Visit: Construction Monitoring File No.: 9175B-16 Date: 07/9/2018 Report No: 44 Page 1 of 3 By: EAF We visited the site today at the request of Derek Abbott for the purpose of construction monitoring at the residential development project located at 16404 - 75`h Place West, located in Edmonds, Washington. Upon arrival to the site we met Neil with B&D Rockeries. We observed that the rockery along the eastern property line was installed. We were informed that the contractor had installed three lifts of imported Type 17 fill, each being approximately 8 inches thick, compacting each lift with a plate compactor. We observed that geogrid had been installed, as some of the excess geogrid was hanging over the rockery wall, while the other half of the geo-grid was covered with the backfilled material. The geogrid consisted of Mirafi 5XT uniaxial geogrid. The geogrid was stretched tight and extended back approximately 5 feet behind the rockery. The geogrid was then covered with Type 17 gravel borrow fill and compacted in thin lifts with a plate compactor. After compaction the geogrid was wrapped over the fill and repeated up to the top of the rockery. We evaluated the rockery backfill using our !/2 inch diameter steel probe rod and nuclear densometer. Probing yielded penetration of less than 2 inches under moderate pressure, which we interpreted as well compacted. Density testing was conducted under ASTM D-1557, the modified proctor. Density test results and locations are included on the attached pages. In -place density test results indicated greater than 95% compaction of the maximum dry density for the material. Please refer to the attached results page for details. We will return to the site to monitor the excavations and progress on the upper rockeries. Our findings and conclusions are based on observations and construction activities observed while on site. In our opinion, the rockeries observed today have been constructed in accordance with the approved plans and our recommendations. Attachment: Site Plan, Density Test Results Signed: Distribution: A14A gjSldt4%CA, GVLA F,AMO,AS, V4 Nqft tj� 41i5tb.16 exit 44 DaR -4 / q / (8 Pat Zt-3 --- :(of PT* afry-A. I o E A-b!" 01 Au4*1"elf w I"f NELSON GEOTECHNYCAL. N G,A ASSOCIATES, INC. GEOTECHNICAL ENGINEERS & GEOL443ISTS Project Name: Abbott Development Location: Edmonds, WA Proctor Method: ASTM D-698-91 / X ASTM D-1557-91 DATE TEST APPROX. FEET APPROX. PERCENT WET NUMBER TO GRADE FILL DEPTH MOISTURE DENSI7 7/9/18 DTI 2.5 1 7.3 145.6 7/9/18 1 DT2 1 1.5 1 2 1 5.2 1 139.9 7/9/18 1 DT3 1 0.5 1 3 1 5.1 1 139.5 IN -PLACE MOISTURE AND DENSITY TESTS Job Number: 9175B-16 Report Number: 44 Page: 3 of 3 Test Conducted by: EAF DRY MAX. % % COMMENTS HAMMER PASS / DENSITY DENSITY COMP. SPEC. BLOWS FAIL port Gravel 135.7 140.4 97 95 17 Pass Borrow Import Gravel 133.0 140.4 95 95 19 Pass Borrow Import Gravel 132.7 140.4 95 95 18 Pass Borrow FIELD REPORT NELSON Project: Abbott Residence GEOTECHNICAL Owner: Derek Abbott ASSOCIATES, INC Location: 16404 - 75" Place West, Edmonds, Washington 17311 135TH Ave. NE #A-500 Weather: Sunny, 70's Woodinville, WA 98072 Purpose of (425) 486-1669 FAX 481-2510 Visit: Construction Monitoring File No.: 9175B-16 Date: 07/13/2018 Report No: 45 Page 1 of 1 We visited the site today at the request of Derek Abbott for the purpose of construction monitoring at the residential development project located at 16404 - 75a' Place West, located in Edmonds, Washington. Upon arrival we observed the completed rockeries along the north, south, and eastern portions of the site. The rockery contractors were not onsite during our visit. Final grading for the driveway and lower parking area was in progress, as well as, forming for stairs along the eastern edge of the residence. Based on our observations while onsite, it is our opinion that the rockeries have been constructed in accordance with our recommendations and the approved plans. We will return to the site upon request to observe the final site conditions when vegetation and other permanent erosion control measures are in place. Our findings and conclusions are based on observations and construction activities observed while on site. Attachment: Site Plan Signed: ;✓� Distribution: