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Report Main Office Salem Office Bend Office P.O. Box 23814 4060 Hudson Ave., NE P.O. Box 7918 Tigard, Oregon 97281 Salem, OR 97301 Bend, OR 97708 Carlson Testing Inc • Phone (503) 684 -3460 Phone (503) 589 -1252 Phone (541) 330 -9155 FAX (503) 684 -0954 FAX (503) 589 -1309 FAX (541) 330 -9163 Special Inspection FINAL SUMMARY LETTER July 12, 2004 T0108135.CTI City of Tigard 13125 SW Hall Blvd., Tigard, OR 97223 -8199 Attn: Building Department Re: Eslinger Office Building 6855 SW Baylor Street Tigard, OR Permit No.: BUP2001 -00324 Dear Sir or Madam: This is to certify that in accordance with Section 1701 of the Uniform Building Code, Title 24, we have performed special inspection of the following item(s) per our inspection reports only: Concrete — Cylinders Only Installation Wedge Anchors Structural Steel- Fabrication, includes verification of welder certifications, weld procedures and material certifications All inspections and tests were performed and reported according to the requirements of Project Documents and, to the best of our knowledge, the work was in conformance with the approved plans and specifications, approved change orders and applicable workmanship provisions of the State Building Code and Standards, as well as the structural engineer's design changes, approvals and verbal instructions. Our reports pertain to the material tested /inspected only. Information contained herein is not to be reproduced, except in full, without prior authorization from this office. If there are any further questions regarding this matter, please do not hesitate to contact this office. Respectfully submitted, CARLSON TESTING, INC. Andrew M. Ewing President AME/tt cc: Eslinger Builders Inc — Malcolm Eslinger James G. Pierson Engineering — Steve Pierson Robert Evanson & Associates — Bob Evanson Earth Anchors — Jeff Torson c. _ef\ CeoPaCific Engineering, Inc. 7312 SW Durham Road Portland, Oregon 97224 Tel (503) 598 -8445 • Fax (503) 598 -8705 July 13, 2004 GeoPacific Project No. OR01 -7282 Eslinger Builders, Inc. 11575 SW Pacific Highway Tigard, OR 97223 Attn: Malcolm Eslinger (Fax 503 - 245 -9908) RE: SOIL ENGINEER'S SUMMARY AT CONCLUSION OF EARTHWORK BAYLOR COURT OFFICE BUILDING TIGARD, OREGON References: Foundation Investigation, Baylor Court Office Building, Tigard, Oregon, GeoPacific Engineering, Inc., May 23, 2001. GeoPacific Engineering, Inc. conducted on -call testing and construction observation services for the above - referenced commercial development during the construction portion of the project. The purpose of our monitoring was to verify that various elements of the construction were performed in general accordance with our recommendations and to City standards. A final inspection of the site was performed on July 13, 2004. Field reports summarizing our inspections, observations and testing during construction are attached. During construction, representatives of GeoPacific performed approximately 11 site visits to observe: (1) the foundation excavation, (2) foundation footing bearing surfaces, (3) retaining wall bearing surfaces, (4) wall construction, and (5) compaction testing of wall backfill. Structural fill placement at the site appears to have been limited to thin sliver fills, wall backfill and pavement sections. SITE PREPARATION Based on our site observations during construction, vegetation was cleared and topsoil was removed from the building footprint and parking areas of the site. BUILDING FOUNDATION The building footprint was excavated to approximate plan grade. The subgrade consisted of weathered basalt and clayey silt soil with fragments of weathered basalt. Disturbed areas of the subgrade were recompacted in place to a dense unyielding state. The building pad was proof - rolled to verify adequate subgrade strength. Based on our observations, competent native soils /basalt and /or Page 1 of 3 Baylor Court Office Building Project No.01 -7282 engineered fill are considered suitable for support of foundations to a maximum allowable bearing pressure of 2,500 Ibs/ft • PARKING AREA PAVEMENT CONSTRUCTION Based on our site observations during construction, the parking area was stripped of topsoil and a thin layer of compacted structural fill was placed. A proof -roll of the parking area at the plan subgrade elevation was performed to verify adequate compaction. Underground utilities in street and parking areas were installed, and the trenches backfilled and compacted. After utility construction, crushed aggregate baserock was placed for the parking area and compacted. Asphaltic concrete was then constructed over baserock in a single 3 -inch lift. GeoPacific performed on -call density testing to verify compaction of trench backfill and asphaltic concrete. Based on our density tests, adequate compaction was achieved. Summaries of our inspections and test results for the project are attached. RETAINING WALLS The project includes an approximately 12- foot -high concrete retaining wall incorporated into the building foundation, ancillary large- block, keystone retaining walls adjoining the building ranging from 4 to 6 feet in height, and an approximately 4- to 7- foot -high large -block keystone wall on the western property line for the parking area. GeoPacific performed compaction testing on the concrete wall backfill during construction. GeoPacific observed the subgrade along the keystone wall alignments, verified adequate subgrade strength and observed compaction of baserock along the wall alignments. During construction of the parking area wall, GeoPacific observed keystone block and geotextile grid placement, and performed compaction testing of wall backfill. During construction of the ancillary keystone walls, GeoPacific performed compaction testing of wall backfill. We did not observe geotextile grid placement during construction of the ancillary walls, but noted in our final inspection that the 4- foot -high walls include two geotextile grids, while the 6 -foot —high wall includes four geotextile grids. Based on our observations, the keystone walls were constructed in accordance with our recommendations and the project design specifications and adequate compaction of the wall backfill was achieved. Page 2 of 3 Baylor Court Office Building Project No.01 -7282 CLOSING AND LIMITATIONS Our conclusions and opinions as to whether the work essentially complies with the project specifications are based on our observations and experience. The conclusions contained herein apply to the materials and locations tested /inspected only, and represent conditions at the date of this report. We cannot provide advice, opinions, or conclusions relative to site work that we have not observed. Locations indicated in our field reports are generally based on construction staking placed by others, or information provided by the contractor at the time of our site visit. Surveying of test locations or locations of site improvements, and establishment/verification of line and grade, are beyond the scope of services provided by GeoPacific. Within the limitations of scope, schedule, and budget, GeoPacific attempted to execute the scope of services in accordance with generally accepted professional principals and practices in the field of geotechnical engineering at the time the report was prepared. No warranty, express or implied, is made. If conditions are encountered during foundation excavation that differ from this report, then the developer, the contractor, and GeoPacific should be allowed to review the condition before corrective action is taken. Corrective work performed by the builder without notification of the above parties will be considered as an acceptance of the conditions encountered. Sincerely, GeoPacific Engineering, Inc. .S�� NGI N 4) a F R •ON 1 _ 14743 / yam` 7.4112WMANIP. 1.• E1766 OREGON 41-k. FR�r� (1� ° v q 23 . l9 C. C' �S D. IM g� \ Paul A. Crenna, C.E.G. James D. Imbrie, P.E., C.E.G. Engineering Geologist Geotechnical Engineer Attachments: Field Soil Inspection Summary (2 pages) Summary of Soil Field Density Tests (2 pages) Summary of Asphaltic Concrete Field Density Tests (1 page) Test Code Prefixes Page 3 of 3 Field Soil Inspection Summary Page 1 of 2 Field Soil Inspection Summary Project: Baylor Court Job number: OR 01 -7282 Project address: Bayler Court & 68th Parkway, Tigard, Oregon Permit number: Permit type: Daily Reports 8/15/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Checked footing for c.c. wall and found old perforated pipe surrounded with 1.5" drain rock at bottom of wall footing zone. All pipe and drain rock removed and replaced with compacted 3/4 " -0 rock. Areas of soil bearing <2000 removed an additional 6 ", and area where drain had saturated soil additional +1' excavated for replacement with 3/4 " -0 rock. All geofabric under footing and to existing ground has been deleted. 1.5" drain rock behind wall has been deleted. 3/4 " -0 rock will be used in compaction of grids and used as drain. Bottom of wall footing line is heavy compacted with jumping jack before wet rock placed and compacted. 8/16/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Checked stripping and found stripping to be acceptable. Stripping pile guess 400 yards 3 +. Footing line for retaining wall watered and jumping jacked until hard and stable. 1st and 2nd course block laid and perforated 4" pipe wrapped with filter fabric installed as progression made with wall block. 8/17/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Checked wall and 3/4 " -0 rock backfill construction. 3rd row block is being installed. Passing compaction tests taken on 1st lift backfill. Grid fabric will now be installed and compacted. Wall construction going at a slow pace, but care is being taken to produce a good constructed product. 8/17/01: GeoPacific Geologist, Paul Crenna, was on site at 2:15 pm. Observed construction of keystone retaining wall along eastern property line. Contractor was applying water and compacting 3/4 " -0 crushed aggregate behind wall with a jumping jack compactor at +2' elevation. Lower geogrid is installed on approximately 150' length of wall. Grid lengths is 6'. 8/22/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Procedure is good with wall backfill and pipe installation 12' behind wall. 3/4 " -0 rock being installed in 12' section and compacted in 8" lifts with double drum vibratory walk behind roller and jumping jack at wall. Compaction tests will be taken before 2nd fabric installed to assure good compaction. Procedure is excellent. 8/24/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Checked stripping for final on site and found stripping to be acceptable. 8/27/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Keystone wall is being capped and large boulders being removed from excavation and stockpiled. 9/14/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Proof rolled F.S.G. on building pad and parking lot and found subgrade to be firm and stable with no deflections. Subgrade material in native condition has high percentage oversize rocks to be tested for compaction using nuclear densometer. Therefore, must be proof rolled. Firm and stable. Acceptable. 9/24/01: GeoPacific Field Supervisor, Ron Dodson, was on site. Checked last 60' of top of wall from top transition to corner, back uphill, and found 3rd row of fabric installed as directed by engineer. 2 blocks down from top of wall and http://192.168.0.1/geopacific/admin/view_soil_field_report.pl 7/13/04 Field Soil Inspection Summary rage z or z compacted rock (3/4 " -0) in place over fabric and 1.5 " -0 rock installed over parking lot section. 5/9/02: GeoPacific technician, Jeff Stenberg, was called to Baylor Court for visual of subgrade for wall placement at East portion of site (North side of bldg). Contractor has excavated subgrade to firm competent subgrade. Due to uneven grade of boulders below subgrade, contractor had placed 3/4 " -0 leveling course and compacted of plate compactor. Have given ok to begin construction of retaining wall. 6/30/02: GeoPacific engineer, Jim Imbrie, observed subgrade and stripping beneath retaining wall and fill for reconstruction /extension of wall north of parking lot. The subgrade was adequate for wall support. Go back to the task select page for Baylor Court Go back to the project select page http://192.168.0.1/geopacific/admin/view_soil_field_rePort.pl 7/13/04 . Summary of Field Soil Density Tests Page 1 of 2 Summary of Field Soil Density Tests Project Baylor Court Job number: OR 01 -7282 Client Eslinger Builders, Inc. Summary Coding and Explanation Date Test Elev C.P Max Field Dry Comp Comp Test test number Test location (ft) 0%) density (%) moist d spec result status 11/9/ 01 DTl B R COURT - STORM TOP 118.9 8.4 115.5 95 97 Passed TIE IN WEST SIDE RETAINING 8/17 /01 RW1 WALL - 20' NORTH OF +2 128.7 10.4 122.7 95 95 Passed SOUTH END WEST SIDE RETAINING 8/17/01 RW2 WALL - 75' NORTH OF +2 128.7 8.3 124.9 95 97 Passed SOUTH END WEST SIDE RETAINING 8/17/01 RW3 WALL - 90' NORTH OF +2 128.7 6.4 123.4 95 96 Passed SOUTH END WEST SIDE RETAINING 8/ 23/01 RW4 WALL NORTH END - 20' +4 128.7 7.6 122.2 95 95 Passed SOUTH OF NORTHWEST CORNER WEST SIDE RETAINING 8/23/01 RW5 WALL SOUTH END -10' +4 128.7 6.4 123.0 95 96 Passed FROM SOUTHEND 8/ 27/ 01 RW6 WEST SIDE RETAINING +5.5 128.7 6.7 126.3 95 98 Passed WALL AT NORTH END 8/ 27/ 01 RW7 WEST SIDE RETAINING +5.5 128.7 4.9 127.1 95 991 Passed WALL AT SOUTH END l 8/ 27/ 01 RW8 WEST SIDE RETAINING +5.5 128.7 7.4 124.4 95 97II Passedl WALL AT CENTER 11/2/01 RW9 I CENTER OF WALL L I -3 I 127.8 I 8.7 120.7 90 951 Passed 11/2/01 RW10 (CENTER OF WALL L I -4 I 127.8 I 9.2 116.6 90 9111Passed 1 11/2/01 II RW11 (CENTER OF WALL L I -5II 127.8 I 11.0 116.3 90 911 Passed EAST RETAINING WALL 12/13/01 RW12 BACKFILL AT EAST SIDE -2 127.8 9.8 118.8 90 93 Passed ENTRANCE EAST WALL RETAINING 12/14/01 RW13 WALL AT SOUTHEAST -4 127.8 9.3 116.8 90 91 Passed CORNER 12/14/01 RW14 EAST WALL RETAINING FG 127.8 8.7 117.4 90 92 Passedl WALL AT EAST CORNER I II II II - II - II III II II II http://192.168.0.1/geopacifidadmin/view_soil_summary.pl 7/13/04 Summary of Field Soil Density Tests Page 2 of 2 EAST WALL RETAINING 12/14/01 RW15 WALL AT 10' NORTH OF -2 127.8 9.0 121.5 90 95 Passed ENTRANCE - BACKFILL EAST WALL RETAINING 12/14/01 RW16 WALL AT 10' SOUTH OF -2 127.8 8.4 120.5 90 94 Passed ENTRANCE - BACKFILL 5/9/02 RW17 Northeast retaining wall 5' +2 116.9 8.0 115.0 95% 98% Passed North of bldg 5/9/02 RW18 Northeast retaining wall 20' +2 116.9 6.5 114.4 95% 98% I Passed North of bldg 5/9/02 RW19 Northeast retaining wall 30' North of bldg +21 116.9 6.0 112.51 95% 96% Passed 5/21/02 RW20 Upper North wall @ middle of +2 116.9 8.1 115.2 95% 99% Passed wall 5/21/02 RW21 Upper North wall @ middle of TOP 116.9 8.0 113.7 95% 97% Passed w all 5/21/02 I RW22 I South wall ® 20' South of bldg. I +211 I 116.911 7.311 114.6 95% I 98 %11Passed 1 5/21/02 I RW23 (South wall © 20' South of bldg. TOPI 11 116.91 6.91 113.211 95% 97%1 Passed 11/9/01 STl SANITARY SEWER LATERAL TOP 118.9 8.4 113.7 95 96 Passed AT EAST OF 78TH AVENUE II I 1 SANITARY SEWER LATERAL 11/9/01 ST2 AT EAST SIDE OF 78TH TOP 118.9 9.0 114.5 95 96 Passed AVENUE 68TH AVENUE - SANITARY 11/9/01 ST3 SEWER TIE IN AT WEST SIDE TOP 118.9 6.5 118.6 95 100 Passed OF STREET Go back to the task select page for Baylor Court Go back to the project select page http: // 192. 168. 0. 1/ geopacific /admin/view_soil_summary.pl 7/13/04 Summary of Field Asphalt Density 1 ests • �b� - v - Summary of Field Asphaltic Concrete Density Tests Project: Baylor Court Job number: OR 01 -7282 Client: Eslinger Builders, Inc. Page #1 Rice density: 153.3 Marshall value: Method of test: Serial #: 2032 Description: "C" Mix from Morse Brothers Coffee Lake Date In Compac of Test Test location Lift place - test number number density lion 18/14/021 1 1 North Parking 1 142.7 93.1 18/14/021 2 West Parking 1 1 142.8 ( 93.2 8/14/021 3 1 West Parking 1 1 143.8 93.8 18/14/ 0211 4 (1 West Parking 1 1 1 141.0 1 91.91 18/14/02 I 5 11 West Parking 1 1 142.41 92.9 Go back to the task select page for Baylor Court Go back to the project select page http: //192. 168. 0. 1/ geopacific /admin/view_asphalt_summary.pl 7/13/04 Test Prefixes Page 1 of 1 Test Prefixes The following test prefixes are used. BC Base Course DT storm Drain Trench FT Franchise utilities Trench LF residential Lot engineered Fill NC No Code (general fill areas and backfill) PS Pavement Subgrade RF Roadway engineered Fill RW Retaining Wall backfill SF Structural Fill ST sanitary Sewer Trench WT Water line Trench Go back to the project select page http://192.168.0.1/geopacific/admin/test_prefixes.pl 7/13/04