03-22-2006 Council Agenda - Laserfiche WebLink

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on a lot. Doing so may lead to issues associated with storm water runoff and drainage, among others. Increasing the impervious surface on a lot without properly addressing storm water management may have a negative impact on neighboring properties as well. Other Community Regulations City staff conducted a survey of nearby communities to determine whether or not Little Canada's driveway regulations are consistent with prevailing standards, including a review of their codes and discussion with staff. The survey is attached to this report. The six communities surveyed included White Bear Lake, Vadnais Heights, Shoreview, Maplewood, Roseville, and Arden Hills. Four of six communities require only one curb cut per parcel on curbed. streets. The other two include.Maplewood, which permits two by approval of the City Engineer, based on a maximum impervious surface in the front yard of 40 %, and a 20 to 30 foot spacing between curb cuts. Roseville allows two, upon staff review and a maximum 30% impervious surface. Code Change If the City choos2s to change the code and allow second driveways for single family property, staff suggests that the change be done in association with several conditions. Imposing additional restrictions for second driveways will .assist .in maintaining the level of safety and mobility current present within. the City. The following are additional regulations to consider including as conditions associated with a possible code change: • Limit the overall impervious surface. There are currently no impervious surface limitations for the R-1 District, although Shoreland parcels have an overall limitation of 30 %, Staff would recommend that if second driveways are allowed, the City limit the overall amount of impervious surface allowed on any parcel and that any site plan submitted include a storm water management plan. • Limit the maximum percentage .. or linear feet of curb cut allowed on any one parcel. The current code states that no curb cut shall exceed 24 feet in width unless approved by the City Engineer. The minimum width of a lot in the R -1 District is 75 feet for interior lots and 80 feet for corner lots. Staff would recommend that if the City changes its code, the total curb cut on any parcel should be limited to not exceed 50% or 40 total feet, whichever is less. s Limit the minimum amount of frontage necessary fora lot to qualify for an additional curb out. The current ordinance requires 125 feet of frontage per curb cut for non - single family uses. Staff would recommend that.a similar restriction be applied to single- family uses. s Limit the minimum separation between curb cuts for parcels with a second driveway. The current code states that driveway access curb openings on a public street for non - single family dwellings shall not be located less than 40 feet 3