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ESTIMATED <br />DATE ACTIVITY DESCRIPTION COST/HOURS" <br /> planting 8-12 inches early in summer and approximately <br /> 12 inches in mid- to late summer. Second and <br /> Third Years: Mow 8-12 inches two times, or as <br /> necessary. Four mowings/spraying total in <br /> years 1 and 2; 28 total acres of treatment. <br />Late Evaluate Walk site to monitor seedling emergence and 2-4 hours staff time <br />summer, seeding development. Ideally, there should be about 1 <br />Year 1; native seedling per 2-3 square feet minimum. <br />Year2 Many grasses and fortis should be about 4-6 <br /> inches tall by the end of the first growing <br /> season. Evaluate in mid-summer in year 2. <br />Year2-4 Prescribed As adequate fuel accumulates, conduct one Rx Actual burn: <br /> burn fire late April to stimulate native plants and set approximately 8 <br /> back nonnative, cool season grasses. hours for a crew of <br /> 5-8, or hired crew for <br /> $1,500 to $4,000 / <br /> burn <br />Annual Site After initial establishment, at least once each 3 hours <br /> inspection year the site should be walked by city <br /> staff/ecologist to review site development and <br /> conditions. <br />Year 4 or 5 Prescribed 2" prescribed burn. Seasonal timing may be $300-500+ per acre. <br /> burn fall or spring and should be based on rate of <br /> development for prairie and evaluation of ratio <br /> of grasses to flowers in planting. <br />Year 5+ Add'I After 4 or 5 growing seasons, evaluate Approximately 1-4 <br /> seeding development of seeding to determine if hours <br /> supplemental seeding of flowers and/or grasses <br /> is warranted. <br />Infrastructure Planning <br />There are several items that should be planned for in the purchase/development <br />process for the Top of the World addition. Importantly, this includes fencing and <br />signage. These two items are considered below. <br />Fencing <br />The Top of the World addition property occurs adjacent to existing park land to the west <br />and south. For this reason, fencing would not be required at these boundaries. <br />Likewise, the north property boundary occurs adjacent to Excel Energy easement <br />property and the City does not anticipate that fencing will be required in this <br />approximate 500 foot length of boundary. <br />Top of the World Park Addition Natural Area Management Plan 21 <br />