Review the Preliminary Plat of the Valsong Addition. Kirk Miller with K.E. Miller Engineering, agent for the applicant Ron Smith presented the plan. He said this is an 80-acre tract that Mr. Smith wants to build 3 houses on. The proposal is for a 3-lot subdivision, 2- 5-acre tracts and the remainder of land for one single tract. Mr. Miller said they have made all the corrections as suggested by Les.
Charlotte Bass said she lives 1/2-mile down stream in Bridlewood Addition from this plat and asked for assurance with retention ponds or engineering that the drainage from the construction of this subdivision will not create flooding of her property.
Mr. Miller said that Mr. Smith is only building 3 houses and there will be no paved surfaces.
Charlotte Bass asked if the remainder of this property would be fully developed in the future.
Mr. Miller said if this is developed fully in the future the applicant would then be required to replat the property and submit a drainage plan.
Charlotte Bass asked if detention ponds are in the plan at this point. Mr. Miller said there are not, other than a decorative pond that will retain some water.
Charlotte continued to ask Mr. Miller for assurance that this subdivision would not encourage flooding of Fourmile Creek.
Mr. Miller said this subdivision is not in a flood plain but the property adjacent to it is. He said the drainage would be the same quantity it is now and maybe less with the decorative pond.
Clark Nelson asked if an engineering study has been completed concerning the storm water runoff of this property onto adjacent property. Mr. Miller said they have not done this. Clark asked if the rate of run off after the houses are built would be no greater than what the run off is of the land in its current state. Mr. Miller said it would be the same or less depending on how the decorative pond works out.
Les said the only significant change would be the roof surfaces of the 3 houses, which is the addition of about 4,000 square feet of impervious surface. The remainder of the tract is agriculture today and will remain this in the future. Mr. Miller said the lawns for these homes would absorb more water than agricultural property.
Clark Nelson asked if the intent of the decorative pond is to retain the storm water as it flows in by way of surface drainage. Mr. Miller said this is correct.
Clark asked if all the corrections were made following the Subdivision Committee meeting. Les said all the comments have been addressed.
Quentin Coon asked if all 3 of these homes would connect to Andover sewer. Les said they would be connected by way of a private lift station and force main. The public sewer is on the tract adjacent to this property to the west. Les said that Bickley Foster suggested this method to make it cleaner for when the tract is fully developed.
Clark Nelson asked if this property is inside the city limits of Andover. Les said that it has been inside for 6 or 7 years and is zoned A-1 Agriculture District.
Quentin Coon asked for an explanation of a temporary use of a private lift station. Les said that between the 3 owners, they would own and operate a lift station to collect and pump about 1/4 mile into the public interceptor. Les further stated when this property is developed as a subdivision, it will require extension of public sewer, water, and streets. This will require a zoning change and replat. At this time the private lift station would be removed.
Lynn Heath asked if there would only be 1 entrance to all 3 properties. Les said the Subdivision Regulations require that every lot have access to a public road. All 3 of these lots have access to the public road, but choose to have an agreement to just use 1 driveway.
Ron Smith applicant of the property at 1104 W. Harry, said there is Milo planted on the north and will plant soybeans on the 80-acres on the west. The decorative pond will act somewhat as a storm water retention pond. He does not think it will help the drainage at Charlotte Bass' property. Ron said this construction would not increase the water flow in the creek.
Keith Zinn was concerned about all the driveways being combined into 1 and emergency vehicle access to the homes. Ron said there would be 1 main driveway off of Harry Street, which will accommodate all traffic to the houses.
Keith asked if these would be hard surface roads. Ron said that it is currently built with crushed asphalt, but he plans to redo it with a rock base and crushed asphalt on top. In the future he anticipates having a county spec road that is more narrow.
Ron Smith said he would speak with the Fire Chief concerning pumping of water out of the pond in case of a fire.
Clark Nelson said the City system could be improved to give the Planning Commission knowledge of drainage concepts and plans and he does not see a negative impact of this plan.
Clark Nelson made a motion to recommend approval of the Preliminary Plat for the Valsong Addition subject to the staff comments and the conditions set therein. Lynn Heath seconded the motion. Motion carried 7/1 with Charlotte Bass voting no.