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Correspondence (8) Nov 23 09 01:25p CIVIL CONSTRUCTION 5412986980 p.2 NOU -10 -2009 15:21 FROI~I:4ESTERN WOOD STRCTRS 503- 692 -6434 TO:5412986980 P. 001 , . ' 'S T I _N WOOD =`-� TRUCTUR.ES% INC a. ;JO Bo?_ 130 'D67 SW 05 OR SW � OS' ..1c `:�``� . (503) h5'2.6900 or (E),C)CI'' - 11 692-6‘,314 �,.,u? Zon —00 2--i01 . FAX COVER SHEET PLEASE DELIVER TO: v [ Zoc)9 - ov06 TRANSMITTAL FROM: i FL; L._1..tot✓ ' , taut- C. GiL4tio4A,F,E.- � �. E. COMPANY oe REGARDING `^' J L G+� ar-LS do •,J C. FNPIA ,- '� ., S12.104_ DEPARTMENT DATE ll to/05- 1 FAX NUMBER PAGES ATTACHED G41- 298 Imo, 9 go -c; PL EASE CONTA:n" U5 IF Vile -FACSIMILE I° ILLEGIBLE OR IF t- I-1ti5 WIII5SING PACES. l a+VL., u.E�E.WE.."D •-foure. V- b.x DE.Sc.rzl at y 711G.. sub 9 4 1v - ik '4 °F . °*'" r F 1 A C4QtZ fin, rt, -p-is C,As- -- lv..FLis.1- p G4OQS .st•-}C'1..>j 0 0 t e..1:41.- psc.-- •rarz..b,i,.41 .)c, . - 'i-oz.4-f'uo►.. 0-FT-Is. ho,.1c.ti -Lori ¶6p1..75, 1 c. aoT 1-A rz. c - 4 E. . ‘.-D Safi O h4 b F -p4. ;4 or I -p-i E le.G. A ig t s 121sgv{z.It-iC A __ 1/4-.) Qs 1 ID RkL,L c' -14 e.pc > ,A \& OR$ A.vz-e... 34" L,1,-/-4 aPF'IronC I.- AltiTEL to" of EMia,e_Dwt � r<.IT -1 MI:PSIDI,1 6E\ f°x tabs Lis a. - i t-i s u is.si-I - 1 - +. T►a 4 i ts.c, 1:7 T.a L- . -ro. E. a e 1..! A �,-1a tzs Y lz.ov 1 A.E.,s c .0 A-rs 5E4 T>- Io lA t li-1 s- b) MEM-I LA 'fir 4 A C s \ r //yejj)t_----- Visa. us on tilE web vvl^JV'J.'vJeStv ((1viUOlf::?f ur.[UI C°.C;,)m GENERAL CONTRACTOR CIVIL 1 840 WEST 16TH STREET 541 - 298 -6025 THE DALLES. OR 97058 541- 298 -6980 r-x CCL It 63613 CONSTRUCTION COMPANY, INC. \'?-_-\\ July 14, 2010 ,(`.�� Zen Dutson �� City of Tigard 13125 SW Hall Blvd �200� — UCH Z© / Tigard, OR 97223 50 z_009- 0006 RE: Fanno Creek Boardwalk Pile Driving Procedure To Whom It May Concern: As requested,. we submit the following procedure to drive the piling for the boardwalk; 1. The boardwalk is supported by 2ea 3" galv. pipe piling at 8' centers. 2. Each pile has a design load of 50001b, including dead load and 1001b /sf live load. 3. The piling were driven to 10,000lb or 5 ton capacity. 4. A hydraulic jack with a pressure gauge was used to determine the actual load. 4331 psi equated to 10,000lb of load. 5. The pile were driven and tested acceptably, meeting the design requirements. 6. As time goes on, the pile will set or freeze and the pile resistance will increase significantly. This procedure was performed and witnessed by Zen Dutsen, Jeff Peck/City of Tigard, Vello, YAK Engineering, and Paul and Nick of Civil Construction. Everyone in attendance was satisfied with the acceptable results. • Since °ly, • : ul C. Wolf ?Zc -c-)o&C) �______,, VAK Construction Engineering Services, LLC �v/ \ 8285 SW Nimbus Avenue, Suite 104 V A1!� Beaverton, Oregon 97008 ` 503.718.5999 tel 503.718.5980 fax \ f / vkoiv(cavakengineerinq.com M E M . TO: Paul Wolf, Civil Construction Company Fax: FROM: Vello Koiv, VAK Engineering PROJECT: Fanno Creek Trail & Bridge /Hall Blvd. DATE: 12/16/2009 Crossing RE: Boardwalk Design, Conditions of Approval No. 1, Land Use Hearing I was made aware that a condition of approval for the Boardwalk Design was that it be designed to be resistant to flood damage and anchored to prevent floatation, collapse and lateral movement. We were not aware of this condition at the time of our design effort; however we did conduct our design with the realization and understanding that the above conditions could be present. The boardwalk members are positively attached with brackets and nails to driven piles that have uplift resistance to prevent floatation. Appropriate design loads were used to size the members adequately. Lateral loads were also considered in designing the foundation supports to resist movement. It also should be noted that the boardwalk extends from the bridge crossing the creek to a pathway near the edge of Hall Boulevard. As such, it is not in or near the main channel of Fanno Creek. Should flooding occur, flood waters will have little or no movement around the boardwalk. In summary, it is my position that the directive of Condition 1 has been met. Please advise should there be any further requirements with regards to this matter. Thanks. 1 O r 1 �2l ) ..„ c % P I y , t 12,6 i 0-EGON � ic)t 21, V 4) 1 E /1Ul Filename: 09098A01.doc Page 1 of