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• <br /> SHERBURNE COUNTY1111 <br /> r <br /> VI'TCHI r 5PLC TO.r r r .�:.. TrTIP:, �, ,y, <br /> 9ausee4 ,d K/IfAeieem tL iii in�a <br /> Sherburne County Ditch Inspector's Plat Report <br /> Date December 16, 1997 <br /> ConditionsCloudy, 35 Degrees F, 11:30 AM <br /> Subiccx Hidden Crock <br /> T,ncation:Section 29, Township 88, Range 2(i; City of F1k River, Ditch 82 <br /> Persons Present Jim Wy-nnemer, Ditch Inspector. <br /> Observations and Recommendations <br /> This is at the lower end of Ditch S2 which also conies through the golf course. The <br /> culvert under County Road 1 to thc north and up stream i3 a 42 inch diameter. The culvert <br /> under 192rd avenue is a 24" and the culvert under Meadowvale is an 18". There are obviously <br /> some sizing issues to be addressed here. The area between 193rd north and east to County <br /> • Road 1 and iiortli and west to Meadowvale is planned as a storm water detention site for water <br /> from thc storm drains along County Road 1, ditch 22 also runs through this arca. <br /> The hack side of lots 1 & 2 are low and wet now, the ditch turns west as it conies through <br /> lot 5. If the development is approved and the developer wants that stretch of the ditch through <br /> lot 5 could be straightened and located on the lot line between lot 5 and lot 6. <br /> Drainage calculations and some water modeling should be done for the sub watershed of <br /> this area to determine the extent of the problem with the culvert sizing as it is and what efflact <br /> that sizing will have on 25, 50, and 100 year storm events. Was there and consideration given <br /> for thc restriction of thc 18"culvert under Mcadowvalc when County Road 1 was upgraded this <br /> year and the storm drains were added? <br /> The additional storm water runoff generated from the conversion to residential <br /> development must be addressed if not in thc development at least in thc sub watershed. <br /> • <br />