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ARDEN HILLS CITY COUNCIL - JANUARY 10, 2000 10 . ot~way extends] 4 feet into residential property. This space is used to allow for the installation of private or City utilities. Mr. Brown stated that the City street standards called for four to six inches of asphalt pavement. Below the pavement is eight to 12 inches of crushed rock with approximately 12 inches of sand below that. The existing streets primarily include two to four inches of pavement, a few inches of rock and at times no sand sub base. The 12 inches of sand is used to direct water from underneath the road. One of the biggest enemies of streets was water that freezes and thaws creating heaving of the road. If the water is kept away Irom the roadway, the heaving problem is eliminated. Also included in the City street standards was curb and gutters and concrete driveway aprons. The concrete driveway aprons allow for a nice transition from the driveways to the streets. The aprons also keep the water in the streets rather than in the yards. Some developments include the use of surmountable curbs. Thc curbing included in the City standards was more vertical for maintenance purposes, such as plowing. Additionally, the more vertical curbs carry water better than surmountable curbs. Not included in the proposal for the Ingerson neighborhood was concrete sidewalks, bituminous trails, additional landscaping (other than around the ponds), street lighting, concrete road pavemcnt or parking lanes. Additionally, ditches adjacent to the roads were not proposed due to limited space and existing trees. . Mr. Brown explained the construction process of the proposed ponds. He indicated that the intent was to get as much volume in the pond as possible within the geographic constraints of tbe site. More volume in the ponds results in more settlement of sand and silt and cleaner water running into lakes and wetlands. Mr. Brown reviewed the proposed costs of the street reconstruction project. He stated that the total cost was projected at approximately 2.2 million dollars. This estimate included the bid, engineering, administration and lcgal cost, as well as overhead costs. The actual bid was expected to be approximately 25 percent less than the estimated total cost. The road reconstruction alone was estimatcd at approximately 1.6 million dollars. The storm sewer improvements were estimated at approximately $370,000 and the ponding at approximately $175,000. Mr. Brown presented the proposed funding for the project as follows: . General Fund: $440,000 . City Street Fund: $130,000 . Storm Water Utility Fund: $350,000 - Rice Creek Water Shed District: $100,000 . State Aid Funds: $630,000 . - Property Assessments: $519,000