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Keys At Upstream And Downstream Ends Key Width 4' Minimum Notes: I i I <br /> And At Approximate 2fi Ft. Spacing i I I I I <br /> Beginning Sta 27+50 1. Rock gradation shop meet IDOT requirements for I -I 1 1 <br /> Stream Bonk GRAD. NO._21__ riprap, quality designation "A", or as <br /> (See Note 4) � - designated by engineer. <br /> .� r� �\ <br /> �,.�� 2. Stone Toe 50 ft 0 1.0 Tons/Ft. average <br /> Key ,; s• Keys 3 0 10 Tons Each <br /> .- ` :' �,, ...: 4 i Total Rock Amount (Estimate) 60 Tons <br /> ,, , go, •M � w• '� 3. K shall be constructed so that the vertical section <br /> .27,? remains embedded in the existing stream bank. III 1 1 <br /> itt <br /> k. 4. Location lett side of streambank looking downstream. <br /> , ,` .., Stone Tce Protection �eQ\h <br /> �.• (Rock Riprap) �- 4 See Note 3 ZO <br /> `1 • U P Z <br /> - W Q O <br /> ` +!I - •• a•' . • .0 ° -° °. . EL 621.20 1 N_ P <br /> 1 - , o0 fn W <br /> 0 0 0 0. LVPIN4111, <br /> �`*� 1 Same Height QO <br /> Key --- . . :•0. o . ° 0 •• o O 0 1 As Stone Toe WI- <br /> 0 _ "1.11.• Protection W a <br /> • •c." • t 1.5 <br /> �;:?, ` <br /> �► Gravel Bor ��� Y Lai <br /> o• 0 ( __E11.4 See Typical Z O <br /> • 0 .. 0 11 •Il•. ."%, �Riprap Section < I- <br /> ° m <br /> Lai <br /> 0 .•o .. o o .. 1-11-U=11=1 M Z <br /> o • f� KEY DETAIL <br /> /-rf 0 <br /> ° .0 ix <br /> Downstream Riffle EL 616.20 Existing <br /> PLAN Stream Bank WI Level Crest <br /> .20 <br /> Key Sta. h1 WI Level Crest El. s ®�619 o <br /> 1 27+00 6.0ft 3.011 619.20 111= 1 O•� 1 y `�' <br /> 2 27+25 6.0ft 3.0ft 619.50 -�1- 1 �� =4140 1 Stream g <br /> 3 27+50 6.Ott 3-Ott 619.60 11= .0�-��•;• �d r g a all Benchmark EL. 637.95 (-' <br /> CP 5,Hub 60ft S ofbank at [IC <br /> Descriptiontop ;�► Q Q��� O�1� <br /> stream station 28+50 111=H=H=11= il 5 g <br /> — <br /> Beginning Sta. Description ter of <br /> Center TYPICAL RIPRAP SECTION <br /> waterway.10011 downstream from CP 5. mow. <br /> IL-ENG-152 <br /> —. braollre 64.1 <br /> NOT TO SCALE Nye I M <br /> Landowner LARRY SHACI(ELFCRD Stream Location y,•• it a m j <br />