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Plans (18) rns7 a0/7 - O0p 6)LI 13 0 5" i4 /�� 'R1ER TERRACE NORTHWEsr' LOT 211, 212, 213, 214, AND 215 HUB AND TACK CERTIFICATION NEdie SE1/4SEC. 6. T2 S. R1 W. W.U. CITY Or TIGARD, WASHINGTON COUNTY. OREGON SURVEYED MARCH 31, 2017 PREPARED FOR: f POLYGON NORTHWEST COMPANY \ 4). 109 E. 13TH ST. VANCOUVER, WA. 98660LOT , 1 r * t, A 1072.89' S- at' 0,***.# L 27.10' 1 LOT , ' 9.1' 203,6.----"` 211 l R=1072.89' X1.'5 , L=15.34' 6' PUBLIC1U EASEMENT \� ' M 1R..1, i 20 A' 1 LOT it 5 " R-1072.89' t:1001.5W 01.5W 21 ,,,,s '11" t 1°'15.35' grI L=21.85' 1 vp 241 \ Vf f LOT 1 1g.."o _ p R-1001.50' 213 .x, "1 '�' '� 1.=151.3+0' \ •+j9 R=1072.8'9` 3 a 70 ( � 3a t 1 L.=15.33` \ 1 y \ LOT1* R=1001.50' 1 214 ,.4 11.5 �\ , G L=15.33' t 1.$ R=1072.89' \ 8S 'II \ 20ti, 5t L=27.16' TRACT R=1,°°1.501 N L=15»33' R=1001.50' LOT `" ' REGISTEf 2p. L=24.01' 2i 5 �'"'"� 15.€2, PROFESSIONAL5($ \Nt4c,,......„.........„....,...„ LAND SURVEY ',k' 1 7 '1l 011. ...! 2 \ Si.° w- -.• ,. 1‘ Inv JULY 9,MO2 TRAVIS C.JA EM ' 5775 ---. .'" TRACT r r 0 iNi All`8 RENEWS:6131@17 -,.-' I, TRAVIS C. JANSEN, A REGISTERED PROFESSIONAL LAND SCALE SURVEYOR IN THE STATE OF OREGON, HEREBY CERTIFY THAT 20 0 10 20 I HAVE ACCURATELY SURVEYED AND STAKED THE OFFSETS Ii l i�� TO THE FOUNDATION ENVELOPE FOR LOT 211, 212, 213, 214, 1 IINICH .4-- 20 ,, jr.- AND 215 OF THE PLAT OF "RIVER TERRACE NORTHWEST*. DRAWN BY: JAF' ©ATE: 3/31117 PACIFIC COMMUNITY DESIGN REVIEWED BY: ICJ DATE: 4 3 17 PROJECT NO.:, 395-037 PLANNING -ENGINEERING-SURVEYING ,. {531 -tea ./ DESIGNV FIELD REPORT Page•1 of 1 Daniel Stas Polygon-130-05 Prepared By; GDt Project: Y� �/�/1� Project Name; River Terrace Northwest Date Scholls'Ferry Roadand Roy Rogers Report#: 7' 166 Location: __... Arrival: 1235 Departure: 1320 Permit#: TBA Cloudy, 50's Weather; ... Met With(on site): Gary(Strauss) Site Visit RequestedSam(Polygon) . . . Purpose: Evaluate Subgrade of Building 13 (Lots 211 to 215) Outstanding Issues: FR 51 (01/14/16)Lot 122 to 123 retaining wall FR-136(9/14) Low density pavement • IMUding 13 Upon arrival,I observed the excavator was still in the process of cutting subgrade to finish grade for building 13. Subgrade soil appeared to consist of brown silt. Contractor informed me that areas covered by crushed rock were at footing subgrade elevation. About half of the site was cut to grade with the remaining needing an additional 12 inches or less of excavation, except the southernmost half(see site plan for approximate locations). I used a A inch diameter steel"T"probe to evaluate relative consistency of the silt subgrade. Subgradewas generally stiff with probe penetrations under full body weight under 12 inches. I observed a wet area in the subgrade that had been covered by a few inches of 1 K inch minus,crushed rock. Gary said the water is from seepage and is not in footing area. Area generally probed medium stiff with penetrations deeper than 12 inches,which is acceptable for the building slab. Gary said he would remove any soft soil and replace with crushed rock if the area worsens. Shawn Dimke called and discussed the seepage with Sam on 4/11/17. We understand the seepage is very slow and the area will receive-18-inches of crushed rock fill for the slab. Gary indicated that some areas of the site were below subgrade elevation and that he had placed 1 to 2 feet of crushed rock to fill areas on the north side of the building pad. Crushed rock areas were generally not dense and I recommended compaction before concrete forms area placed. Gary said that he would roll the areas using a Bomag BW 120 AD-3 that is onsite. I also recommended that any areas of exposed subgrade at finish grade be covered with crushed rock and"keyed in" with a small plate compactor to prevent disturbance from rain. Based on our observations,Building 13 subgrade evaluated today is being prepared in general accordance with project requirements and our geotechnical recommendations. Distribution: Attachments:Site Plan(1); Reviewed by: SMD to eotedinkal engineering or . We rel • gy to comply with the plans and This report P hou the formed as a respr militia our observation of theof presence relating g representative,our work does not su . or contractor'ss employees spa not tthedonsble oft he sa}ay,TitsirrespectiveP DRAFT representation of our field. cosifinupon n teem responsible G for site sproje This bele report indiatedd by Initials "Reviewed h s�tlon.. , considered final teem of the Geooesign manager, Signature: 15575 SW Sequoia Parkway,Suite 100 I Portland,OR 97224 I Off 503.968.8787 I fax 503.968.3068