06-08-2004 Council Work Session - Laserfiche WebLink

Home Browse Search

#2484 . Woodhill CC May 5. 1999 Page 11 Drainage and Erosion Impacts Portions of the proposed gravel driveway have a relatively steep grade and therefore are subject to possible erosion. The easterly portion of the driveway, primarily that portion within the Club property, could be directed to drain to an existing depression north of the driveway. The existing drainage pattern generally is eastward toward Woodhill Avenue, discharging under the private portion of Woodhill Avenue through an existing culvert. The rates and volumes of stormwater runoff generated by this access driveway do not warrant a NURP pond nor other extensive stormwater management facilities. Improvements of the ditches adjacent to the driveway will be needed to ensure no stormwater impacts to the driving surface of Woodhill Avenue. A paved driveway W'ould be less susceptible to erosion and sedimentation. Because this is a business driveway, all portions of the driveway in the right-of-way are required to be paved with bituminous material per Section 6.05 Subd. I OB. It is staffs understanding that the Club has proposed a gravel driveway rather tlian pavement for a number of reasons, ineluding visual impact, traffic speed reduction, to create a public perception that it is a driveway rather than a road. etc. 1 lowever. paving would decrease the potential for sedimentation; would ne a quieter driving surface; and would result in avoiding the maintenance concerns of maintaining a clean transition area between the gravel and pa\ ed surfaces, i.c. avoiding loose gra\ el on the paved surface at an intersection, which can cause noise problems, loss of traction, etc. F. Other Potential Neighborhood Impacts I. Dust . The propo.sed gravel driveway will have a potential to create a dust problem during periods of dr> weather. Limiting the traffic speed to 10 mph as proposed will help to limit the dust to a great extent. Periodic watering or calcium chloride treatments could also be used. Any dust problem would be eliminated by paving the access driveway. 2. Noise. ITic additional traffic generated by this access wall have little noise impact on the neighK>rhcH>d. Tlie gravel surface w ill likely generate more tire noise than would a bituminous paved surface. Vegetation that had grown up in and around the old roadl>cd prior to its 1998 reconstruction may have provided some small degree of noise buffering to the neighborhood from the maintcnace facility. That buffer will no longer be in place; however, no homes appear to be directly alTected by this loss of vegetation.