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o An advantage of cul-de-sac streets is that they tend to encourage higher value development which increases tax base. It should be pointed out that the currently approved prelimina~ plat provides cul-de-sac lots for 37 of the 95 total lots in the subdivision. In addition to the cul-de-sac exceeding the maximum allowable length, the proposed street plan will increase traffic on the eastern portion o£ 137th Avenue within the subdivision and on Garnet Street, and will increase travel distances for westbound trips from the subdivision by as much as 0.6 miles. If the cul-de-sac design is approved, then it will be required that mailboxes for residents of the cul-de-sac be congregated at the cul-de-sac entrance. Grading and Drainage: The grading and drainage plan submitted is in substantial conformance with the approved grading and drainage plan for the approved preliminary plat. One minor modification is an additional backyard outlet to allow Lots 24 through 30 of Block 2 to be constructed as split level walkout lots. All drainage from the proposed subdivision will be transmitted to a sedimentation pond constructed under the original Rivenwick subdivision. A review of the drainage and erosion control plan will benecessary by the Lower Rum River Water Management Organization (LRRWMO) as storm water from this development ultimately discharges into a Class A waterbody, the Mississippi River. Sewer and Water Utility Easement: If the plat is approved with the proposed western cul-de-sac of 137th Avenue, a 20 foot utility easement should be provided along the common border of Lots 10 and 11 of Block 2 to facilitate watermain looping. Park Dedication: All land due for parks was dedicated with the frrst phase of Rivenwick. The land dedication satisfied 87.3% of the park dedication obligation with the remaining 12.7% obligation to be collected in the form of cash. The Development Agreement also gave the developer the option to pay the cash due for park dedication on Phase II at the same rate as Phase I ($500.00 per lot) by December 31, 1993. If not paid by December 31, 1993, the park dedication cash amount due for the 2nd phase would be calculated based on the remaining obligation (12.7%), the current cash requirement per lot ($650.00) and the number of lots (45) or $3,714.75. At this writing, the cash payment for park dedication on Phase II has not been received by the City. Trails: The trail link on the south end of the 2nd Addition must be paved and linked to the trail segment south of Ironstone Court in the 1 st Addition. The trail connection must be approved by the County Parks Department. These trail provisions are not eligible as park dedication credit. The developer will be requ/red to provide the City with an exhibit showing the County -approved connection of the two trail segments. I I I I ! I I I I I I I ! I I I I I I