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'Fhe :P&ctdow: Preliminary Plat Review <br />October 28, 2005 <br /> <br />Other Lot Requirements: The lots were designed with a minimum width of 70 feet, versus the <br />standard 80 t'eet required in City Code. This may be allowed if the request for rezoning to PUD <br />is approved. The existing trail easement along Alpine Drive must be preserved. There is an <br />existing casement tbr the overhead power lines along Alpine Drive that is shown on the plat. <br />'-Fk~e building pads must be outside of these easements. <br /> <br />Traffic Analysis Report: The City Charter requires a traffic analysis report for this <br />development. The report is being generated but is not completed at the date of this writing. It is <br />anticipated that the traffic impacts resulting from this development will not be sigaai~icant. <br /> <br />Grading and Drainage Plans: The grading and drainage plans have been reviewed. The <br />fbi[owing items need to be addressed. The plans .sheets provide adequate overlap between sheets, <br />addition of match lines will aid in reviewing the plans. Lot 2I, Block 1 does not meet the <br />required minimum slope of 2.0%. The back yard grading along Alpine Drive should be reviewed. <br />The rear yard catch basins are close to the house pads and only serve the western most lots. The <br />exiating trail could be removed and replaced closer to the right-of-way to allow grading of this <br />a['~a. <br /> <br />Tim construction entrance will not be permitted at the location shown. The City of Ramsey does <br />not require rock construction entrances as they are ineffective with the native soils. The erosion <br />control plan must be revised to require daily sweeping of adjacent streets during active <br />ctmstruction and as directed by the City. The drainage from the back yards of Block 3 is directed <br />ol'f site without rate control. The drainage from the back yards of Block 4 is also directed offsite <br />wi[hour rate control. <br /> <br />Ponding basin No. 1 has a standard outlet pipe and a second pipe as an emergency outlet. The <br />C[ry would pret'er to not have duplicate pipes. Please investigate the potential of installing a <br />second outlet structure with a rim elevation of 879.0 on the outlet pipe. The pipes downstream of <br />this structure could be upsized to provide capacity for the emergency overflow. <br /> <br />Separation must be provided between the inlets and the outlets of both ponds to prevent short <br />circuiting of the water and to provide maximum treatment. <br /> <br />Thc. outlet pipe from Ponding Basin No. 2 is directed off site to a pond in a drainage and utility <br />easement. The emergency overflow shown does not discharge to a drainage and utility easement. <br />Ponding basin No. 2 and the existing pond must provide storage for back to back 100 year storms <br />with o~lt discharge. <br /> <br />~.'he pr()ject will require a permit from the Lower Rum River Water Management Organization. <br />:kn NPDES permit will be required from the Minnesc~ta Pollution Control Agency. The City <br />require:s a copy of the application be forwarded to the City Engineer. Building permits will not <br />be i~sued before these permits are approved. <br /> <br />8O <br /> <br /> <br />