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Home My WebLink AboutFR-011 Through FR-014 - HWA West Side CTB Observation21312 30th Drive SE, Suite 110 Field Report No.: FR -011 1 fflPA, ; Bothell, WA 98021-7010 Date (mm/dd/yy): 4/25/2016 TeL 425-774-0106 HWA Project No.: 2013-063-21 HWAGEOSCIENCES INC. Fax. 425-774-2714 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 tient tient Representative Weather City of Renton Bob Hanson Cloudy/Light Rain, 50's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General ContractorGeneral Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. Ken Bret Salazar FIELD REPORT SUMMARY OF FIELD TIME SPENT ON PROJECT TODAY: Start Travel: 0645 Arrived at Site: 0750 Departed Site: 1430 End Travel: 1530 HWA INSPECTION ACTIVITIES, OBSERVATIONS AND/OR COMMENTS: HWA made a visit to the jobsite to observe the cement treatment of subgrade beneath the southbound lanes and shoulder of Logan Ave N. The crew began work at the southern end of the jobsite, at Sta. 15+55. Approximately 14 pounds per square foot of Portland cement was planned to be placed on top of the existing subgrade with a spreading truck. Due to the spreading techniques and the dust guard on the spreader truck, a representative sample was difficult to collect using a measured pan without introducing inaccuracies. I measured the area that was covered by one complete delivery truck and divided that by the tonnage of the truck. It was determined that approximately 15 lbs per square foot of cement was being applied to the subgrade at the start of the job. The spread rate was reported and adjusted. The material was tilled and mixed into the subgrade using a CMI/Terex RS -650 rotovator in 7 -foot wide swaths to a depth of 16 -inches below the top of the existing grade. The degree of mixing was verified by frequent potholing to the full mixing depth (16 inches) and utilizing Phenolphthalein to indicate the presence of the cement. From Station 15+55 to 19+10, a water truck was connected to the front of the rotovator and water was added to the mixture. The material directly behind the rotovator was tested with a nuclear density gauge to determine the approximate moisture content. The material was then spread with a CAT D5G dozer and a CAT 140H motorgrader to grade, and compacted with a CAT CS533E single smooth drum roller. Compaction was performed in static mode due to the moisture and fines content of the soil. A nuclear density gauge was used to take compaction tests along the roadway; the specific locations and elevations tested are summarized on the attached 'Field Compaction Test Report'. Samples of the tested material were collected for moisture content verification. A lab technician from HWA was on site to collect samples of cement -treated soil. The samples were molded in 4 -inch split proctor molds on site, and returned to HWA's lab in Bothell for compressive strength testing. At 1240, the rotovator snapped one of the articulating arms connected to a wheel, and could not continue. The crew planned to replace the broken parts through the evening, and will possibly be ready to continue tomorrow. Material was spread, mixed, and compacted to Station 20+25. A total of 9.25 hours was charged to the job today for equipment load/unload, travel, observation/testing, standby, sample entry, and report writing. SIGNATURES: Signed This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 1 of 3 21312 30th Drive SE, Suite 110 i r LT MA Bothell, WA 98021-7010 7�� j (� ( 7 T INC Tel. 425-774-0106 u` AGEOSCTENCES IlVC. Fax. 425-774-2714 Field Report No.: FR -011 Date (mm/dd/yy): 4/25/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 tient Client Representative Weather City of Renton Bob Hanson Cloudy/Light Rain, 50's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. I Ken I Bret Salazar Photo 1: Mixing cement into existi subgrade with water truck attached Photo 2: Potholing in processed material and spraying sidewalls with Phenolphthalein to ensure mixing. This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 2 of 3 �� 21312 30th Drive SE, Suite 110 ff 1 � �' ; Bothell, WA 98021-7010 Tel. 425-774-0106 HWAGEOSCIENCES INC. Fax. 425-774-2714 Field Report No.: FR -011 Date (mm/ddlyy): 4/25/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 Field Test Client ICTient Representative Weather City of Renton Bob Hanson Cloudy/Light Rain, 50's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. I Ken Bret Salazar FIELD COMPACTION TEST REPORT - NUCLEAR METHOD MATERIAL BEING PLACED: see accompanying field report PROJECT IMPROVEMENT TESTED: see accompanying field report Test Method X ASTM D6938 (soil) ASTM D2950 (asphalt) Other: Densometer: X Troxler 3440 Troxler 3430 Troxier 3411-B CPN MCI -DR -P Serial #: 37406 Density Standard Count.: 2443 Moisture Standard Count: 720 *Lab Control: Standard Proctor X Modified Proctor Asphalt Marshall Density Asphalt Maximum Theoretical Density (Rice) COMMENTS: Test locations and elevations are approximate. Testing provides data only for a specific test location and to a limited depth. Accompanying field report provides additional information. **Depth B.G. indicates depth below grade. Grade means the design finish grade of the current type of fill material being placed. Bolded results indicate compaction below specified value. Completed By: Bret Salazar Reviewed By: Bryan Hawkins This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 3 of 3 Elev'n Lab Control* Field Test Relative Density Moist. or Probe (Proctor/Rice/Marshall) Compaction Test Depth Depth ID Max. Opt. Over Total Dry Moist. Field Spec No. Detailed Test Location B.G.** (in) # Dens. Moist. Size % pcf pcf % % % Logan Ave N, Southbound, Sta. 1 16+25, 19' Left of CL SG 8 143.0 131.9 8.4 2 Logan Ave N, Southbound, Sta. SG 8 143.9 135.1 6.5 16+20, 13' Left of CL 3 Logan Ave N, Southbound, Sta. SG 8 139.2 129.4 7.6 16+30, 7' Left of CL Logan Ave N, Southbound, Sta. 4 19+95, 20' Left of CL SG 8 122.7 109.3 12.2 5 Logan Ave N, Southbound, Sta. SG 8 126.6 113.5 11.6 20+00, 14' Left of CL 6 Logan Ave N, Southbound, Sta. SG 8 133.7 122.4 9.2 20+25, 5' Left of CL 7 8 9 10 11 12 13 Test Method X ASTM D6938 (soil) ASTM D2950 (asphalt) Other: Densometer: X Troxler 3440 Troxler 3430 Troxier 3411-B CPN MCI -DR -P Serial #: 37406 Density Standard Count.: 2443 Moisture Standard Count: 720 *Lab Control: Standard Proctor X Modified Proctor Asphalt Marshall Density Asphalt Maximum Theoretical Density (Rice) COMMENTS: Test locations and elevations are approximate. Testing provides data only for a specific test location and to a limited depth. Accompanying field report provides additional information. **Depth B.G. indicates depth below grade. Grade means the design finish grade of the current type of fill material being placed. Bolded results indicate compaction below specified value. Completed By: Bret Salazar Reviewed By: Bryan Hawkins This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 3 of 3 21312 30th Drive SE, Suite 110 ULTMA, Bothell, WA 98021-7010 7�� A T �7 INC Tel. 425-774-0106 HWAGEOSCIENCES I1VC. Fax. 425-774-2714 Field Report No.: FR -012 Date (mm/dd/yy): 4/25/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 Owner Client Representative Weather City of Renton Bob Hanson Cloudy/Light Rain, 50's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. I Ken Daniel Walton FIELD REPORT SUMMARY OF FIELD TIME SPENT ON PROJECT TODAY: Start Travel: 0700 Arrived at Site: 0815 Departed Site: 1430 End Travel: 1530 MISCELLANEOUS DETAILS: I arrived on the jobsite at 08:15 and set up a mobile laboratory in a parking lot on the west side of Logan Avenue North. Two samples of soil cement were taken and each sample was compacted into four 4 -inch split molds to match the wet density obtained with a Troxler 3440 nuclear density gauge by HWA representative Bret Salazar. The samples were taken at 11:30 and 12:30 respectively. Information for the samples taken today is as follows: Sample 8: Taken at Station 16+25 at 11:30. One bucket was taken from each lane. Sample 9: Taken at Station 20+00 at 12:30. One bucket was taken from each lane. A total of 10.5 hours was charged to the job today for travel, loading and unloading of equipment, observation/testing, and report writing. SIGNATURES: 'e� Signed I r�� HWA Field Representative SUMMARY OF UNRESOLVED ISSUES Item # Status HWA Project Engineer or. Reviewer This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 1 of 1 21312 30th Drive SE, Suite 110 ULT"a I Bothell, WA 98021-7010 Tel. 425-774-0106 HWAGEOSCIENCES INC. Fax. 425-774-2714 Field Report No.: FR -013 Date (mm/dd/yy): 4/26/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 Client tient Representative Weather City of Renton Bob Hanson Partly Cloudy, 50's - 60's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. I Ken Bret Salazar FIELD REPORT SUMMARY OF FIELD TIME SPENT ON PROJECT TODAY: Start Travel: 1140 Arrived at Site: 1240 Departed Site: 1630 End Travel: 1730 HWA INSPECTION ACTIVITIES, OBSERVATIONS AND/OR COMMENTS: HWA made a visit to the jobsite to observe the cement treatment of subgrade beneath the southbound lanes and shoulder of Logan Avenue N, and on N 3rd Street at the intersection with Logan Avenue N. The rotovator had been repaired through the night, and HWA was contacted at 0955 to inform us that cement treatment was planned to be completed across the site today. The crew began work at the northern end of the quarry spalls, at Sta. 26+25, heading northward. Approximately 14 pounds per square foot of Portland cement was planned to be placed on top of the existing subgrade with a spreading truck. Due to the spreading techniques and the dust guard on the spreader truck, a representative sample was difficult to collect using a measured pan without introducing innacuracies. I measured the area that was covered by one complete delivery truck and divided that by the tonnage of the truck. It was determined that approximately 14 lbs per square foot of cement was being applied to the subgrade at the start of the job. The spread rate was reported and adjusted. The material was tilled and mixed into the subgrade using a CMI/Terex RS -650 rotovator in 7 -foot wide swaths to a depth of 16 -inches below the top of the existing grade. Due to shallow high-pressure water crossings on N 4th Street, material was mixed near the intersection using the bucket of an excavator instead of the rotovator. The degree of mixing was verified by frequent potholing to the full mixing depth (16 inches) and utilizing Phenolphthalein to indicate the presence of the cement. The material directly behind the rotovator was tested with a nuclear density gauge to determine the approximate moisture content. The material was then spread with a CAT D5G dozer and a CAT 140H motorgrader to grade, and compacted with a CAT CS533E single smooth drum roller. Compaction was performed in static and in vibratory mode, depending on the moisture and fines content of the soil. A nuclear density gauge was used to take compaction tests along the roadway; the specific locations and elevations tested are summarized on the attached 'Field Compaction Test Report'. Samples of the tested material were collected for moisture content verification. A lab technician from HWA was on site to collect samples of cement -treated soil. The two samples comprsied of 4 specimens each were molded in 4 -inch split proctor molds on site, and returned to HWA's lab in Bothell for compressive strength testing. A total of 6.5 hours was charged to the job today for equipment load/unload, travel, observation/testing, standby, sample entry, and report writing. Signed <L_..�— Reviewed Axl .. HWA Field Repsesentats4e HWA Project Engineer This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 1 of 3 21312 30th Drive SE, Suite 110 ULTMA, Bothell, WA 98021-7010 HWAGE�7� �A(T 7 INC.el. 425-774-0106 OSCIENCES IlVFax. 425-774-2714 Field Report No.: FR -013 Date (mm/dd/yy): 4/26/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 Client CEnt Representative Weather City of Renton Bob Hanson Partly Cloudy, 50's - 60's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. Ken Bret Salazar Photo 1: Mixing cement into existing su de with cement placement in foreground 1 v j.h Photo 2: Potholing in processed material and spraying sidewalls with Phenolphthalein to ensure mixing. This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 2 of 3 ff�21312 30th Drive SE, Suite 110 iy A Bothell, WA 98021-7010 \iTel. 425-774-0106 fiWAGEOSCIENCES INC. Fax. 425-774-2714 Field Report No.: FR -013 Date (mm/dd/yy): 4/26/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 Field Test tient Client Representative Weather City of Renton Bob Hanson Partly Cloudy, 50's - 60's Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. Ken Bret Salazar FIELD COMPACTION TEST REPORT - NUCLEAR METHOD MATERIAL BEING PLACED: see accompanying field report PROJECT IMPROVEMENT TESTED: see accompanying field report Test Method X ASTM D6938 (soil) ASTM D2950 (asphalt) Other: Densometer: X Troxler 3440 Troxler 3430 Troxler 3411-B CPN MCI -DR -P Serial #: 37406 Density Standard Count.: 2467 Moisture Standard Count: 715 *Lab Control: Standard Proctor X Modified Proctor Asphalt Marshall Density Asphalt Maximum Theoretical Density (Rice) COMMENTS: Test locations and elevations are approximate. Testing provides data only for a specific test location and to a limited depth. Accompanying field report provides additional information. **Depth B.G. indicates depth below grade. Grade means the design finish grade of the current type of fill material being placed. Bolded results indicate compaction below specified value. Completed By: Bret Salazar Reviewed By: Bryan Hawkins This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 3 of 3 Elev'n Lab Control* Field Test Relative or Probe (Proctor/Rice/Marshall) Density Moist. Compaction Test Depth Depth ID Max. Opt. Over Total Dry Moist. Field Spec No. Detailed Test Location B.G.** (in) # Dens. Moist. Size % pcf pcf % % % Logan Ave N, Southbound, Sta. 1 33+75, 25' Lett of CL SG 8 134.9 127.9 5.4 Logan Ave N, Southbound, Sta. 2 33+80, 18' Left of CL SG 8 136.4 128.8 5.9 Logan Ave N, Southbound, Sta. 3 33+85, 10' Left of CL SG 8 136.2 128.4 6.1 N 3rd St, Westbound, Sta. 100+90, 4 15'NofCL SG 8 135.7 126.6 7.2 N 3rd St, Westbound, Sta. 100+95, 5 15'NofCL SG 8 136.2 127.4 6.9 N 3rd St, Westbound, Sta. 101+00, 6 15'NofCL SG 8 135.3 126.7 6.8 7 8 9 10 11 12 13 Test Method X ASTM D6938 (soil) ASTM D2950 (asphalt) Other: Densometer: X Troxler 3440 Troxler 3430 Troxler 3411-B CPN MCI -DR -P Serial #: 37406 Density Standard Count.: 2467 Moisture Standard Count: 715 *Lab Control: Standard Proctor X Modified Proctor Asphalt Marshall Density Asphalt Maximum Theoretical Density (Rice) COMMENTS: Test locations and elevations are approximate. Testing provides data only for a specific test location and to a limited depth. Accompanying field report provides additional information. **Depth B.G. indicates depth below grade. Grade means the design finish grade of the current type of fill material being placed. Bolded results indicate compaction below specified value. Completed By: Bret Salazar Reviewed By: Bryan Hawkins This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 3 of 3 21312 30th Drive SE, Suite 110 Bothell, WA 98021-7010 TA T INC. Tel. 425-774-0106 HWAGEOSCIENCES C. Fax.425-774-2714 Field Report No.: FR -014 Date (mm/dd/yy): 4/26/2016 HWA Project No.: 2013-063-21 HWA Task No.: 200 Project Name Location or Address of Project PO No. Logan Avenue North Improvements Logan Avenue N. Renton, WA 98055 caner Client Representative Weather City of Renton Bob Hanson Mostly sunny, 60s Design Authority (engineer or architect of record) Design Authority Representative HWA Project Manager Perteet Shawn Shirey Bryan Hawkins General Contractor General Contractor Representative HWA Field Representative Johansen Excavating/Ground Up Const. I Ken Daniel Walton FIELD REPORT SUMMARY OF FIELD TIME SPENT ON PROJECT TODAY: Start Travel: 1130 Arrived at Site: 1210 Departed Site: 1630 End Travel: 1745 MISCELLANEOUS DETAILS: I arrived on the jobsite at 12:10 and set up a mobile laboratory in a parking lot on the west side of Logan Avenue North. Two samples of soil cement were taken and each sample was compacted into four 4 -inch split molds to match the wet density obtained with a Troxler 3440 nuclear density gauge by HWA representative Bret Salazar. The samples were taken at 13:30 and 14:30 respectively. Information for the samples taken today is as follows: Sample 10: Taken at Station 33+75 at 13:30. One bucket was taken from each lane. Sample 11: Taken at Station 100+90 at 14:30. One bucket was taken from the westbound lane. A total of 8.0 hours was charged to the job today for travel, loading and unloading of equipment, observation/testing, and report writing. SIGNATURES: Signed- HWA Field Representative SUMMARY OF UNRESOLVED ISSUES Item # Status HWA Project Engineer or Reviewer This report should only be reproduced in its entirety. Report is not final until signed by HWA field representative and HWA reviewer. Page 1 of 1