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<br />THE WEll-AND ENGINEERING CO. <br />DENYlER. PUULO . CANON CITY <br /> <br />SUBJECT <br />FLOP.ENCE FLOOD l'R01'ECTION <br /> <br />UXHIBIT <br /> <br />Plan 7 Cout'd.. <br /> <br />Petrole\m Ave Bridge <br /> <br />2,500.00 <br /> <br />Fifth Street Arch <br /> <br />10,000.00 <br /> <br />Clearing out A T & S P PE Bridt::e <br /> <br />300.00 <br /> <br />Property condemnation end ::Ught-of-way <br /> <br />_-29....000.0Q... <br /> <br />l!"128.075.00 <br /> <br />Total <br /> <br />$156.619.55 <br /> <br />Engineering and contillfencies <br /> <br />Total Combination "A" <br /> <br />10.380.45 <br />li167 ,000.00 <br /> <br />For combination B we propose to construct a dam acr'~ss Sand Creel< betv:een <br /> <br />one icalf and three-quarters of a mile above town and form thereby a basin <br /> <br />of sufficient size thf't all wcters in excess of what the channel of Sand <br /> <br />Creek can s2.fely carry in its pr,ssent condi tio",. will be held back until <br /> <br />taken care of by the charmel at ;~ safe unifonn rate of flow. <br /> <br />This dG.m and retention res~:rvoir are shovrn on Drawing l~o. 3. The dam with <br /> <br />a ma.xblum height of G8 feet ;cs,to be constructed of' carefully selected <br /> <br />material placed in layers an(i will have Its water face protected by a water <br /> <br />tight facine of concrete. The downstream face will be covered with a <br /> <br />liquid tar or .:::spha.lt to prevent inc"C.rsions of burrovling a.ni~cls. ~'... care- <br /> <br />fully puddled. core-wall with steE~l sheet piling driven to bedrock will 11re- <br /> <br />vent any seepage waters from world ng thrQugh the dam. 1'he amount 0 f we, tel's <br /> <br />ret:rded. will be :14~ acre f€'et. '.,',ro"ch the da'" will be constructec1 a <br /> <br />reinforced concrete outlet tube thrcugh wLich will be per:dtted to flow at <br /> <br />a maximum the safe clCrrying cupac:it,y of S~nd Creek. An ample spillway is <br /> <br />provided should the re::1ote possibility ever occur thut the reservoir be <br /> <br />1 , <br />