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<br />I <br /> <br />I <br /> <br />I <br /> <br />Mr. Andy Briscoe <br />-3 September 1969 <br /> <br />Page 5 <br /> <br />I <br /> <br />Unit costs are similar to those presented in the Apri 1 1969 report <br />entitled "Pilot Planning Study for Area liide Storm Drainage Planning, <br />North Boulder Major Drainagev-'ays," <br /> <br />I <br /> <br />It has been concluded that the estimated cost of \Jorks, as shOlm on <br />the attached Sheet 2, \Vi II amount to $150,000, I-Ihich includes a 30~ <br />allowance for contingencies, engineering and adMinistrative cost~. <br />Because of the small size of the project, no atter1pt I,!as made to ac- <br />count for potential value of excavated materjal~. lim-Jever, final <br />design should take into considercJtion potential uses for tids excavated <br />material for use in City projects else\,here. [xi"ing shade trees along <br />the present gulch from Station 6+50 to 11+70 IJould be saved \Jherever <br />possible, and final design would incorporate specific trees into the <br />channel Ilork to aid in increasing the hydraulic rougnness of the channel. <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />5 urar.1a ry <br /> <br />I <br /> <br />The investigation of Sunshine Gulch has sho\rJn t~1at the old city yards <br />at 3rd and Pearl Streets is in the flood plain. Ch~nnel iClprovements <br />can be Clade to Sunshine Gulch vlhich \Jill free tnis land and adjacent <br />lands from the hazard of being \-Jitl:in the flood plai,'. <br /> <br />I <br /> <br />The cost of these improve~lents is est ir.lated to be upproxil,lately <br />SI50,OO-J. lie bel ieve the subsequent increase of the val.Je of the <br />property involved '.;i11 SiQf,ificantly exceed the cost of the ir::prover,lents, <br />hm',ever, no effort has been r,lade to prepare a benefit/cost study~ <br /> <br />I <br /> <br />I <br /> <br />Please feel free to contact us at any ti~'le if ',;e 1,"la,.. rrovide additional <br />information on this work, or if ttlere are any cuc~lions cor;cerning the <br />I-laster Plan. <br /> <br />I <br /> <br />Ver'~ :rcJ}'1 ';(fUrS, <br /> <br />I <br /> <br />\iRIGiiT-11cL/\UGI!LII: E:JGIIIEERj <br /> <br />I <br /> <br />By <br /> <br /> <br />I <br /> <br />KR\-i:bjf <br />Enc 1 osu res <br /> <br />I <br /> <br />I <br /> <br />I <br />