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F3-1040 ,- Howarc R. Green CoTcany July 19, 2002 File: 818250J-0240 Mr. Chris Leeseberg City of Elk River 13065 Orono Parkway Elk River, MN 55330 RE: SUBWAY RESTAURANT SITE PLAN REVIEW Dear Mr. Leeseberg: As requested we have reviewed the revised submittal for the proposed Subway Restaurant to be located on Lot 1, Block 1, Elk River Crossing Fourth Addition. Based on our review, we would offer the following comments: 1. The drive aisle behind the building adjacent to the parallel parking is shown as 23.5 feet in width. This needs to be expanded to a minimum of 24 feet in width. 2. The driveway access onto Zane Street is shown as 36 feet wide with three lanes, one coming • in and two exiting the site. The maximum allowable driveway width according to City ordinance is 30 feet. We do not think dual exiting lanes are necessary from the site. Therefore the driveway should be reduced to 30 feet in width or less. 3. The trash enclosure is shown in the northwest corner of the building; however, there is no curb cut shown to get to the trash receptacle. 4. No storm drainage calculations were provided with the submittal package. The storm sewer system of catch base using small diameter pipe is dependent upon the development of the lot immediately to the north. The storm sewer system runs into that lot and from there, ties into the storm sewer on Zane Street. We question whether or not the storm sewer is adequate to take the runoff from the lot. It is shown as 12-inch diameter pipe, which is as small as possible and a very flat grade, which minimizes the amount of storm water it can carry. We need to review and approve the storm drainage calculations, prior to the issuance of a building permit. 5. The elevations at the driveway entering onto Zane Street should be revised to raise the highpoint to maintain the storm water internal to the site. Also, there will be an easement necessary from Lot 2, Block 1, Elk River Crossing Fourth Addition, for construction of the driveway since it is on the property line and is shared access. 6. The sanitary sewer and watermain services are also dependent upon the development of the property immediately to the north. As previously discussed, there are less sewer and water services than the number of lots, since this portion of Elk River Crossing has been replatted a number of times. The replatting has made a greater number of smaller lots along the Trunk Highway 169 frontage. Due to this, the Subway Restaurant lot is one of the newly created lots that does not have a sewer and water service stubbed into it. The proposed method of providing sewer and water service is to extend the 8-inch sanitary sewer into the lot to the north, place a manhole on it, and extend the 8-inch sewer southerly into the Subway • Restaurant lot, ending in another manhole. This way each of the two buildings will be serviced off a public line. Water services are handled much the same way with an 8-inch line being Itr-071802-Leeseberg[1] 1326 Energy Park Drive • St. Paul, MN 55108 • 651/644-4389 fax 651/644-9446 toll free 888/368-4389