07-25-1994 Council Packet - Laserfiche WebLink

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re{X)rt to evaluate the feasibility of snue North of Carman Road. The or more. The puipose of this report id provide estimated project costs to re permits from the Watershed and d together over time as development and don ’t seen to have a consistent i annually and the street is impassible onvenlence to the neighborho^ that Avenue and Carman Road make it unount of time. The proposal here ^er Kelly Avenue. The project would Kelly Avenue in this area is only 1.5 nnetonka. utfall line as shown on Figure 1. allowing Kelly Avenue from the Kelly n a 20 foot deep excavation on Kelly this option is that the work can be ^at follows the natural drainage way. I some tree removal. The depth of f the wetland area. ulverts and drainage tile in the area, e route. This option would require ^ater and assure positive drainage. >ipe between the ponds. This option loes option "C". This option utilizes Detailed cost estimates of the proposed improv ements have been prepared and are included in the Appendix. All prices are based on anticipated unit prices for the 1994 construction season. Tbe total project costs include ten (10) percent for contingencies and thirty (30) percent for engineering, legal, anticipated interest, and bonding costs. There are no costs included for easement acquisition. The total estimated cost for the various options is as follows: Option A $81,290 Option B $70,430 Option C $66,140 Option D $85,150 Assi 11 lents We would recommend that the project costs as outlined be charged to the benefitting property owners based on benefit received. The benefit can be calculated on an area basis of the property that has direct runoff to the drainage channel. The drainage area of approximately 35 acres will benefit from the improvement. Conclusions and Recommendations The drainage improvements presented in this report are feasible as related to engineering principals and construction practices. We would recommend option C because it minimizes the impact on the neighborhood and it provides good Water Quality Management.impact The following recommendations are presented for consideration by the City council: That this report be adopt -tI t/*, the City of Orono as a guide for construction of the proposed improve.' That the City hold an information meeting with the neighborhood prior to initiating the project. That the City conduct a legal and fiscal review of the proposed project prior to a public hearing. That the cost of the improvements be allocated equally among the parcels in the study area receiving benefit. 139/geo. rpl N