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B2 Area Ditch Maintenance /Ditch Construction /Flood Control Berming <br />(City of Little Canada - $7,500, $3,240 /year annual maintenance <br />RWMWD - $16,350, $1,200 /year annual maintenance) <br />Ditch Maintenance (B2 north to existing pond - two ditches) <br />Ramsey - Washington Metro Watershed District - $6,400 <br />• Reduce impact of Gervais Lake backing up onto private property <br />• Major flow conveyance system through B2 to Gervais Lake <br />City of Little Canada (easement aquisition - $7,500) <br />Work Item <br />Unit <br />Est. <br />Quantity <br />Unit <br />Cost <br />Extension <br />Mobilization/Demobilization <br />L.S. <br />1 <br />300 <br />300 <br />Miscellaneous small tree/shrub removal <br />L.S. <br />1 <br />300 <br />300 <br />Common excavation <br />C.Y. <br />280 <br />10 <br />2,800 <br />Seed/Mulch <br />Ac. <br />1.0 <br />2000 <br />2,000 <br />Native Vegetation Installation <br />L.S. <br />1 <br />1000 <br />1,000 <br />Easement Acquisition (City of Little <br />Canada) <br />L S <br />1 <br />7,500 <br />7,500 <br />Total* <br />$13,900 <br />Annual Ditch Maintenance within ditch system north of B2 to existing pond <br />Ramsey Washington Metro Watershed District - $1,200 /year (assume once every 5 years @ $6,000 <br />per time, divided by 5 years) <br />Work Item <br />Unit <br />Est. <br />Quantity <br />per year <br />Unit <br />Cost <br />Extension per <br />year <br />Mobilization/Demobilization <br />Ea. <br />.2 <br />500 <br />100 <br />Sediment Excavation <br />Ea. <br />.2 <br />2000 <br />400 <br />Hauling and Disposal of Sediment <br />Ea. <br />.2 <br />1000 <br />200 <br />Seed/Mulch <br />Ac. <br />0.5 <br />2000 <br />500 <br />Total* <br />$1,200 <br />Page 94 <br />