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Proposed Construction Sequence <br /> 1.Excavate toe trench <br /> sh-b o 2.Use spoil from toe trench to backfill slumping � XA <br /> A- u2 areas in North Zone and along base of eroding [~ONSEODATION <br /> Key in npap at north extent of slope in South Zone-see cross-sections for IkISTRET <br /> project into existing shrubby area <br /> Centerville additional information <br /> Lake 3.Install non-woven geotextile fabric 1318 MCKAY DR.NE,SUITE 300 <br /> IN riprap area `0 4.Install riprap HAM LAKE,MN 55304 <br /> F 5.Follow planting plan 763-434-2030 <br /> 1 <br /> www.Anol<aSWCD.org <br /> oI Do NOT regrade existing bank,slope,or <br /> 8 vegetation. Leave existing stumps in place. Raea <br /> 0 <br /> I1 Center of sanitary sewer manhole cover adjacent LOCATION <br /> l to south zone(888.65'MSL)assumed at 100.00 ' <br /> for ease of installation. OHW level(885.00'), <br /> I' relative to manhole,is 96.35. WATERSHED DISTRICT: <br /> r <br /> y�cw'vet's <br /> Use fill from north riprap toe <br /> o trench to backfill slumping <br /> N ' areas as feasible p �r .„.,err s DESIGNER:,',DH Hi& ,s-,r,.,;5' <br /> DATE1031;261;:)nu.... <br /> c ' Si x REVISION: <br /> Z f * REVISION: <br /> o <br /> REVISION: <br /> � N <br /> o CHECKED BY: <br /> IN1 <br /> NOTES <br /> 0 <br /> 0 <br /> m <br /> ate` <br /> 1 <br /> r <br /> North Shoreline Zone-Looking North <br /> �. <br /> Swm � <br /> fi <br /> 6SCALE VAII <br /> 0 I <br /> EXISTING <br /> 3 <br /> Will- I ONDITI NS <br /> ! <br /> PROPOSED <br /> W <br /> RIP RAP <br /> 0 N I <br /> in� � Q <br /> Z: I of i . .. SHEET1/2 <br /> wmp <br /> South Shoreline Zone-Looking South <br /> South J $ Manhole Center <br /> riprap area 100.00'(888.65 MSL Cut material from riprap <br /> 07 toe trench <br /> I,. Type IV non-woven geotextile <br /> Stump <br /> �. 99'0 Riprap(9`18"diam.; <br /> min.12'thick) <br /> swmp 98.0' <br /> r N OHW level(885.0')96.35' <br /> Lu 'y "D 97.0' Riprap toe trench <br /> v <br /> I 10 v <br /> ss.o' <br /> o o <br /> 0c <br /> 4 <br /> mP ro I 94.0' d����PEI El M <br /> IC <br /> Native Soil <br /> swmp 0 1' 2' 3' 4' 5' 6' 7 <br /> Key-in ripap at south extent of NORTH ZONE-TYPICAL RIPRAP CROSS SECTION <br /> project 1.Use excavated toe trench sand to fill slumping slopes behind riprap <br /> 2.Minimun riprap depth of 12" <br /> 3.OHW level(885.0')is 96.35' <br /> 4.Lake bed is approximately 96.0' <br /> I ; Cut material from riprap toe trench <br /> Type IV non-woven geotextile <br /> I 99.0' Riprap(9"-18"diam.; <br /> min.12"thick) <br /> 98.01 OHW level(885.0')96.35' <br /> swmp �o •\ I Riprap toe trench <br /> 97.0' <br /> e9' <br /> rn •\ 96.0' 0 <br /> 95.0' <br /> 94.0' <br /> UJ <br /> % _- `r Native Soil <br /> r---7 <br /> --.--.— •--•— 0' 1' 2' 3' 4' 5' 6' <br /> SOUTH ZONE-TYPICAL RIPRAP CROSS SECTION <br /> 1.Use excavated toe trench sand to fill undercut <br /> shorelilne irregularities behind riprap. <br /> 2.Minimun riprap depth of 12" <br /> 3.OHW level(885.0')is 96.35' <br /> 4.Top of bank is approximately 98.5' <br /> 78 5.Lake bed is approximately 96.0' <br />