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<br />. <br /> <br />. <br /> <br />Avenue is in this location. Can everybody see that alright? <br />Lexington Avenue is in this location, 694 is through here, County <br />Road F in this location. The purpose - the original reason to <br />kick off a storm sewer study in this area was based on the fact <br />that Ramsey County wanted to improve Lexington Avenue. There <br />were no storm sewers in the area. There are some ditch systems <br />along Lexington Avenue that would be filled in the event that <br />Lexington Avenue were widened and improved. This is one of the <br />reasons why it was initiated. In 1974, there were some plans - a <br />plan was developed that we have been following to a certain <br />extent to arrive where we are today. I will go through the <br />existing drainage system now and then go to the proposed later. <br />There is existing storm sewer on Fernwood which drains into a <br />detention basin by the NSP substation and then,enters into <br />another drainage system that goes easterly on County Road F and <br />discharges into a drainage ditch that goes south along the <br />Land O'Lakes property. This storm drainage system was recently <br />constructed during the County Road F improvement. Along with <br />this particular piece of storm sewer in this location from the <br />westerly portion of County Road F to Fernwood, drainage was <br />directed to a detention basin in this location, near Cardiac <br />Pacemakers in the southeast quadrant of their property, to a <br />detention basin. Carrying on in Arden Hills, the existing <br />drainage now currently flows through an open ditch into another <br />detention basin that has been kept by Land O'Lakes in their <br />development and a drainage easement over this property has been <br />obtained. Drainage from this location drains by open ditch <br />into the existing low marsh in this area, which then drains <br />down southeasterly into the highway ditch at this point. This <br />also discharges into the highway ditch. They both meet at <br />an existing culvert right here under Interstate 694 frontage <br />road. Land O'Lakes, in their construction, developed the wes- <br />terly portion of this pond. In fact, they excavated a pond and <br />created additional ponding. This excavation and additional <br />ponding was necessary for their overall drainage plan. <br /> <br />In Shoreview - this by the way illustrates Shoreview - <br />this is all Shoreview on this side of Lexington Avenue, and again, <br />the drainage area - I forgot to mention that it's outlined by <br />this dotted line - so you can see where the drainage is all coming <br />from. Shoreview has constructed a detention basin in th~s <br />location, a minor storm sewer here which drains southerly into <br />a storm sewer system that was constructed by Deluxe Check. They <br />occupy this whole portion and this is an internal drainage <br />system. It in turn drains under Lexington Avenue through a <br />culvert into this detention basin. Shoreview also has a storm <br />sewer constructed on this street and along Gramsie Road that. <br />discharges into a ditch that drains down in this direction. <br />All of the flow north of the freeway, north of Interstate 694, <br />currently ultimately drains to this point on the west side of <br />Lexington Avenue at this point. This drainage comes through a <br />culvert/ditch system and enters a ditch on the west side of <br />Lexington Avenue at this point. A portion of Shoreview north <br />of my pointer, up in this area, drains into this detention basin <br />which also drains this way. South of here drains through, on <br />the Shoreview side, drains through the intersection to a pipe/ <br /> <br />2 <br />