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.....:;;;... FEB 2 5 1999 ....seJ 3535 VADNAIS CENTER DRIVE, 200 SEH CENTER, ST. PAUL, MN 55110 651490-2000 800325-2055 ARCHITECTURE ENGINEERING ENVIRONMENTAL TRANSPORTATION February 23, 1999 RE: Roseville, Minnesota Lyndale Garden Center Oakcrest Drive at Snelling A venue SEH No. A-ROSEV9801.00 Ms. Debra Bloom, P.E. Assistant Public Works Director City ofRoseville 2660 Civic Center Drive Roseville, MN 55113-1899 Dear Deb: We reviewed the memo you sent us, dated February 12, regarding the need for more information on the Lyndale Garden Center proposal. The Garden Center indicates that there would only be 250 vehicle trips per day on a typical day. Our estimate was between 400 and 500. As we indicated in our February 4 letter, calculation of volumes generated from a garden center is somewhat difficult. We used 450 vehicle trips per day for calculations and said that this figure represents a design day which is typical of heavier traffic periods. For a very seasonal development such as a garden center, we tried to select a heavier time period as opposed to an average period. We therefore used figures that are conservatively high because of the lack of data in general and the seasonal variation. Even with our high calculations, we indicated that there would not be any significant traffic impacts since the volumes are spread throughout the day and in different directions. If the number is 250 instead of 450, the traffic impacts will be even less than those indicated in our report. We indicated that there would be approximately nine vehicles in the peak hour traveling to or from the west on Oakcrest Avenue. If there were only 250 vehicle trips per day, this number on Oakcrest Avenue could drop to five. The difference would be one vehicle every six minutes based on our report numbers or one vehicle every twelve minutes using the 250 vehicle trips per day number. Either way, the volume of traffic will not be very noticeable. A second question raised in your letter was the impact of closing the median on Snelling A venue. We anticipate that this would reduce the amount of traffic to the Lyndale Garden Center. The options are to make the right-in or right-out movement from Snelling Avenue or to use Oakcrest A venue and Fairview A ve~ue. With the median open, we anticipated that there would be ten northbound left turns to the site and seven outbound left turns to go north on Snelling A venue in the p.m. peak hour. With the median closed, our assumption is that there would be a reduction in total trips to the site with some additional traffic using Fairview A venue. As an example, we estimate that SHORT ELLIOTT HENDRICKSON INC MINNEAPOLIS, MN ST CLOUD, MN CHIPPEWA FALLS, WI MADISON, WI LAKE COUNTY, IN <\0... 9--'"d-Y EQUAL OPPORTUNITY EMPLOYER