6.9. SR 04-19-1999 - Laserfiche WebLink

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~PR-16-1999 09:35 651 644 2349 P.02/03 HR GREEN CO. . . Howard R. Green Company CONSULTING ENGINEERS April 16, 1999 File: 806500J-0240 Mr. Steve Wensman City of Elk River . 13065 Orono Parkway P.O. 80;( 490 Elk River, MN 55330-0490 RE: F:IRST STEP PRESCHOOL Dear Mr Wensman: As requested, we have reviewed the proposed expansion to the R & 0 Sales building located on Vernon Street just north of CSAH 1. We understand the expansion of the building is proposed for both an expansion of the existing business and a nSiW daycare facility. Based upon our review, comments received at the staff review meeting, and a meeting with the developer and his engineer, we would offer the following comments: . The grading plan submitted for the site indicates that the existing parking area and existing building will have runoff that flows to the southwest corner of the site. From here. it will enter the ditch along County Road 1. The expansion of the building and new parking facility will have runoff flowing to the north. Currently a curb cut is shown near the norther1y driveway. We would suggest that this curb cut be moved into tt~e lot somewhat and a low point created so that the water cannot bypass the curb cut onto Vernon Street. A small pond is shown in the grassy area north of the parking area. The size of the pond indicates that it will hold approximatel~' a 1o-year stom1 runoff and allow that water to percolate into the soils. We would recommend that 'the 920 contour be continued around the pond to ensure than when the pond overn::lWS in larger rainfall or spring snowmelt situations, it will overflow through the controlled outlet heading toward the catch basin on Vernon Street. . Theroe- is parking shown along the north line of the parking lot with a drive isle between the parking and the building. The dimension is shown to be 42 feet, which woull~ provide for an 18-foot deep parking stall and 24-foot driving isle. However, therE! is a sidewalk or planting area also shown within this 42 feet along the building. No c.imension is given for this area. Whatever the dimension is of this area, the parking lot should be expanded that far to the north to ensure that there are 42 feet from l~urb line to curb line to provide adequate parking and drive isle widths. . Vehil::les would have great difficulty getting in and out of the parking stalls at the northeast corner and south corner of the site. We would suggest that thef'ie be some type of turnaround provided on the ends of the parking lot to facilitate movements in and out of these end stalls. O:\PROJ\8~,~,OOj\SOO-l601.aF39.doc 1326 Energy Park Drive. St. Paul, MN 55108 . 651/644-4389 fax 6511644-9446 toll free 888/3684389