Laserfiche WebLink
<br />2) Maximum 0001 elevatIOn 6029 plus dead load plus temper. <br />ature plus ICe load plus Silt <br /> <br />3) Normal pool e~va!JOn 6002 plus dead load plus temper- <br />ature plus edr1hQuak.e k>acllng (An assumoo edr1hauake 01 <br />magnitude Six on the Richter scale with the epICenter 15 <br />miles tram the dam) <br /> <br />4) Stabtlity dUflng construction <br /> <br />The dam Will conSist 01 twelve 50-ft-wlde monolilhs and a <br />thrust block on the let! abutment The massconcrele for lhedam <br />is designed for a minimum strength o! 4,000 psi alone year For <br />thiS mix the maximum allowable stresses for lhe loadmg cases <br />aoove were established as follows Case 1 - 1.000 psi, Case 2 <br />1,350 psi Case 3 - 2000 00 and Case 4 - t .250 psi <br />Both precooling and DOstcoollng are being used to control the <br />Temperature rise In the concrete In warm weather precoolng of <br />aggregate and the addition of flake ICe to the mixing water are <br />used to hmllthe temperature atlhe lime 01 p1acemenllo 550F <br />Cooling pipes at an Interval 01 7 5 11 venlcally and 4 0 11 honzon. <br />tally are bemg used 10 reduce the concrete temperature nse aller <br />placement so that grouting o! contraction JOintS can prOCeed <br />wlthoul 100 much delay The concrete IS being placed In 75 It <br />11115 to accommooate lhe InstaHatlon 01 the cooling Pipes <br />As the dam IS constructed Instruments are being Installecl at <br />strategic locallons to measure stresses strains lemperature <br /> <br />and delfectlons DUring construction these measurements are <br />used to monitor concrete temperatures contraction JOnt open- <br />Ings al1d monolith deflectIOns Alter constructIOn IS completed <br />dnd the reservOir filled lhe Instrumentation Will be used 10 con. <br />tlOuOusly monlter the perlormance ot the dam The measured <br />stresses and delleCtlons Will be compared With those predK:ted <br />In the de5lgn <br />Strong motion accelerometers are bemg Installed to measure <br />Ihe response ot the dam to setsmlC events TIle Instruments arE' <br />tnggered 10 record when sub,ected to an acce~ratlOn greater <br />thanOOl G <br /> <br />Construction of the Dam <br /> <br />Notice to proceed With construction was given to lhe low bidder <br />MOrrison-Knudsen, on May 31. t979 and work began at once <br />A 660-11-long dIVerSIOn lunnel...as dnven and the river diverted <br />on October 6, 1979 Excavallon lor the dam foundation was <br />completed In MarCh o! t980, With 10undatlOn grQutmg suthCl€ntly <br />advanced to peJmltthe !lrsl concrete for the dam to be placed <br />on June 18 1980 Construction operations were two.shilt <br />throughout the year dUflng the excavation phase and three-shift <br />dUring the cor.cretlng phase <br />!I now appears thatlhe arCh dam Will be essent18lly complete <br />and reservOIr filling started In May 1982 Complellon 01 all phases <br />01 the prOJect. InclUding the water treatment plant IS expected <br />dUring the fall 011982 <br /> <br /> <br /> <br />H;r.'a <br /> <br />W"'flQif.'f <br /> <br />KEY PERSONNEL <br /> <br />Denver Board 01 Water Commissioner.; <br />Marguerite A PugSley President <br />D Dale Shatter First VlCe-Pre5!denl <br />John A YeienlCk Second VICe-PreSldenl <br />Charles F Brannan. Second VICe.Prestdent <br />James B Kenney Jr Second VlCe.Prestdenl <br /> <br />Denver Water Department <br />W H Miller, Mai1ager <br />W A Tolle Deputy Manager <br />J L Ogi!v~. Manager (Retired) <br />R C Panes Protect Engineer (Retired) <br />Jack Layne. Director of Englneenng <br />Jack Lane Chlet of Pro/OCt Management <br />Jim Ban ProteCt Manager - FOOlhllls Dam & Tunnel <br />Jack Parsons PrO/8Ct Manager - FoothillS Treatment Plant <br /> <br />Harza Engineering Company <br />PrOl€Cl Director - RIChard D Harza Chairman and PreslCent <br />PrOj€Ct Manager - Roma"l P Wengler VICe President <br />ConstrUCllOn t.lanagement Deoartment - Donak:l J Duel< Head <br />Gary R Mass al1d Herben L Srwalle..,. <br /> <br /> <br /> <br />...... <br />Due. <br /> <br />l\eJJ/ord <br /> <br />Resident Engineering - Burge B Kep!ord Resident Engineer <br />Charles K Sebring OHrce Engineer <br />Harry W Padgen Jr Dam Engineer <br />Phlhp S Stottey Concrete Engineer <br />Structural Depanment - Roman P Wengler. He<3d <br />Wilham Shieh (dece<3sed) C H Yeh and J J Llu <br />r..lechanlcal Depanmen! - Wilham E Larson Head <br />Uidls Vitals and Fred B Mass <br />EleC1r1Ca1 Depar1ment~Lemblt Ellau Head <br />Marv!n E SchUChard and Mitchell S FOSlCZ <br />GeotechnICal Deoanmenl- David E Kleiner Head <br />Nathan R Hopton al1d Roger G Oechsel <br />Geologv - Rehard C Ac..er ana Russell A Pa.ge <br />HydraullCS~ Frark G DeFazIO <br />HydrOlOg~ Russell W Re\"e11 <br /> <br />CH2M-Hill <br />Prolecl Manager 8111 ECkenberg <br /> <br />DMJM.Phitlips. Reister. Inc. <br />ProJ8C! Man.ager Vd't Colwell <br /> <br />9 <br />