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<br />!-~-----18' MIN.------TI <br />'K -fib -~+-~--12'MIN.-- <br />Riprap protection--i-. <br />I I <br />-y-- -I --a'' I <br />- ~ 2 ~'• i ;<-3' MIN. ~ <br />-•r ~ <br />-- .. ; •o <br />Random semi-pervious ~~ o ~~ ~ .; _;:, ..` - <br />fill materials----~~-~~-~ ~.-z ;- ~~~ <br />--•Natural slope of North Ar <br />meat composed of rock in <br />place andlor hard clinker <br />materials <br />CHANNEL ON FLAT SLOPES ADJACENT TO NATURAL SLOPES <br />K -----18'MIN.-----~ <br />I I I <br />I I -- i-- I <br />_~ <br />~ •o .~ • ~.• ' ~ r <br />~. ..:..'.~;',~~,~ I ' . ; '~-Natural slope of North Abutment <br />o_ -_ - I- composed of rock in place <br />I ~ .... • <br />~• •°~• .. andlor hard clinkerma~erials <br />Y-`---°--~•-•-~- •-•-- --,~ ~~-Rock fill zone (~6'sizes grading up <br />Random semi-pervious '~'~' ^f-~~ I to I cubic and ) <br />Till materials----- •.~.'~I <br />,-.. <br />CHANNEL ON STEEP SLOPES ADJACENT TO NATURAL SLOPES t" <br />K-----------30 MIN.--------- ~i <br />4.5' K-- 7.5' -?-I 6' M I N. ;-~- - 7.5 -~I 4.5 j~- <br />) I <br />I t I -I------' I <br />) <br />~ -' --_ - ~ I ~ I v _- _- `- <br />O - i r ~~ ~. _ <br />i o. - ~° ~ 006-, __ - <br />y__ ._'_,~ ______ ~'-~.y - Rorkfill zone (+s's,zes gradi,g <br />_•,~ 7.-~..' ~ -• up to I cubit: yard 1 <br />Random semi-pervious r o ,~, <br />fill material----"~- <br />~' <br />COLC'NYO STP,EETER GULCH COAL MINE <br />STREETER GULCH DITCH <br />