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30NESTR00 ASSOCIATES ©6126361311 04/11/96 10:25 0 :02/02 N0:801 <br />Ms. Jeanne A. Mahusth <br />City of Orono <br />Page •2- <br />AfoH 10, 1996 <br />capacity of 800 people. The proposal to share parking spaces with the school may <br />be an acceptable solution on game nights. A paved trail should be constructed as <br />shown on the plans. Because the school plans to use the arena parking lots during <br />the day there should also be an additional paved trail between the west parking lot <br />and the school entrance. <br />4.Grading: The grading plan is acceptable. The recommendations discussed in GME <br />Consultant ’s geotechnical exploration report should be implemented during <br />construction. The pavement section for the parking areas is accepuble, however we <br />would recommend at least 3 inches of pavement with 8 inches of aggregate base. <br />This would allow the pavement to be done in two lifts. The second lift should be <br />done the following year after initial settlements are repaired. The driving lanes <br />within the parking lot should be a 9 ton design based on an R value of 10. Because <br />of the poor soil conditions at the site, the pavement section should include a non* <br />woven geotextile fabric and draintile lines connected at the catch basins. This will <br />provide separation between the aggregate base and soft clay subgradc and some <br />relief from the .-‘n ts of shallow groundwater. The geotextile fabric may not be <br />necessary if the upper 2.5 feet of the subgrade below the gravel base, consists of <br />select granulf recommended in the GME report. The proposal to delay the <br />pavement < *#te curb for one year may be allowable due to the site <br />conditions./Thc s ♦ found at boring 95-4 (near the wetland) are considerably worse <br />than at other arc on the site and it is wise to avoid construction there, j <br />5. Screening: The planting plan appears adequate <br />6. Easements: Please see our January 5, 1996 comments regarding easements. <br />7.Financial Guarantee: We have not yet prepared an estimate of the total cost for the <br />site improvements to determine the amount of the financial guarantee required. <br />Please conuct me at this office if you have any questions regarding this matter. <br />Yours very truly, <br />BONESTROO, ROSENE, ANDERLIK Sc ASSOCIATES, INC. <br />Shawn D. Gustafson, P.E. <br />I