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<br />N <br />N <br />o <br />M <br />o <br />o <br /> <br />chloride (PVC) membrane before water was <br />turned into the canal. That part of the <br />canal between East Douglas Wash and <br />35.3 Road was completed. Work will now <br />progress west toward Indian Wash. <br /> <br />LINING PROCESS <br /> <br />Lining the canal involves several steps: (1) <br />The canal prism is reshaped and smoothed <br />out and the sides are sloped; (2) an <br />underdrain is installed to relieve ground <br />water pressure when the PVC membrane is <br />in place; (3) the PVC membrane is <br />positioned. coverinq the sides and bottom <br /> <br />of the canal; and finally, (4) 15" of sand <br />and gravel are spread over the membrane <br />to help keep it in place and to protect it <br />from damage. <br /> <br />., , "'" . <br />::-:::::-:":;..-=:-,: :-:..,::-. -:', - :. ::\.:::::::.:.:: '::'':::::':>:::'::--:::"-:':::"':'-:.:.: <br />.......................................... \..................>.................../..................i.>.PLA.<...................................y...................1T.......................$'A........................1rJ..........E................................................................................................ ............... ..................... <br />T~~irri~~~!gr~~'''i$<>>mih9tClaplO$~; <br />.....~?9....79r$tr~9PCln....cre\'4S....\V1I1....t)l}ce,...again.be <br />.. Ol.Itinl~lIfRm~(~?~p~Pl!P~!'l~Hlflb~.... <br />aWarelh8.1~ra~j~'1'jl!i!Wr~I;i~QIl4h~. .. .... . <br />fO.9\Vay~leadin~ .wt~~9~n~'~d~~a~y <br />eqUiPrtl~nt~illl)~~I~~tM~I;t~n~IQa:hki <br />..T.... ....f. a. ."1.....8.. ...1...0.... n..... ......I....h.. e..........0..........8....... 0........8. .......1..... ..b.........8......n.......k..............S. ...hoU....................'dbe <br />l!\l9!P~~l'lllJ9tiaspo$sible;. ...... . . <br /> <br />I QUESTIONS ABOUT CONSTRUCTION? I <br /> <br />Nielsons Inc., contact: <br /> <br />Ben Baughman, Safety Officer <br />434-7767 <br /> <br />Bureau of Reclamation contacts: <br /> <br />Mark Wernke, Field Engineer <br />Raleigh Sorensen, Chief Inspector <br />248-0700 <br /> <br />Bureau of Reclamation <br />P.o. Box 60340 <br />Grand Junction, CO 81502 <br /> <br />. <br /> <br />// <br />i <br />/ <br />( <br />