05-25-1999 Council Agenda - Laserfiche WebLink

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The Honorable Chairman and Planning Commission March 8, 1999 Page Two • There has been much discussion between City staff regarding Outlot A. As indicated above, Outlot A contains a large wetland complex, a ditch flowing to Twin Lake, and also is the proposed site of a storm drainage pond. City staff is concerned that the outlot not go tax forfeit in the future thus requiring the City to pick up ownership because of the storm drainage pond located there. Our suggestion would be to have Lots 1 and 2 located in Block 1 each have a one -half undivided interest in Outlot A. This should preclude Outlot A from ever going tax forfeit. • The right -of -way width on Vadnais Boulevard is shown as 33 feet from centerline. If there is any thought that Vadnais Boulevard may ever be upgraded in the future requiring more right -of -way, now would be the time to get additional right -of -way from this plat. B. GRADING, EROSION CONTROL, AND UTILITY PLAN • The grading plan shows minimal lot grading, therefore, minimal disruption to the existing vegetation. There is minor grading in Lots 1, 2, 10, 11, and 12 of Block 2 to create house pads. The remaining lots show home house pads, which fit very well with the existing topography. • The plat is proposed to be serviced by sanitary sewer and water main from the adjacent John Mitchell Preserve. The sanitary sewer is a 10 -inch line which connects into the MCES facility on the east side of John Mitchell Preserve. This line was apparently put in anticipating this development when the John Mitchell Preserve was constructed. The water main is an extension of the exiting facility within John Mitchell Preserve. The sewer and water to serve this plat are routed through the development along Twin Lake Court to Vadnais Boulevard and then westerly along Vadnais Boulevard and Twin Lake Boulevard. The only portion of the utilities that do not fall within street rights -of -way are a short portion through Lot 12 Block 2. There is only one new proposed manhole that does not fall within a blacktop surface, that being in Lot 12 Block 2. Greg Shroeder, Director of Public Works has indicated that he wants a drivable surface up to that manhole. It appears by slight extension of the driveway for Lot 12 Block 2 this can be accomplished. There are, however, existing manholes on the 10 -inch sewer line put in with the John Mitchell Preserve Development, which may not be accessible at certain times of the year. • The water main is an extension of the City of Vadnais Heights system. Currently it is proposed to end in a long dead -end at Lot 1 Block 2. Because the system is not looped and will not be looped until there is some extension further west and potentially a crossing of the interstate, the water system could be susceptible to stagnant water and low fire flow pressure. It is also susceptible to any breakage along the dead -end putting the entire development out of water service for some period of time. • Twin Lake is classified as a Recreational Development Lake in the City's Shoreline District of the Zoning ordinance. This requires a 75 foot setback from the homes to the ordinary high water level. The ordinary high water level is shown as 870.0. It appears that all the building pads will easily meet this set back requirement. —OWE Page 86 npany o /proj. /806330J./ 0240. /330- 0308.march99 UUNJULi IIN RS