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MINUTES OF THE ORONO CITY COUNCIL MEETING Tuesday, May 26, 2015 7:00 o’clock p.m. _____________________________________________________________________________________ Page 9 of 22 9. BALDUR PARK ROAD DESIGN GUIDANCE (continued) The disadvantages of this option include a potentially unstable subgrade would be left in place, the pavement structure would not be consistent throughout the project area, and the life of the roadway would be less compared to other options. The total estimated cost for this option is $107,880. The third option is a partial depth reconstruction, which would consist of removing and replacing the existing pavement structure to a depth of 12.5 inches. The advantages of this option include a consistent pavement structure throughout the project area, a separation between the aggregate base and underlying subgrade materials, and minimal disruption to adjacent properties during construction. The disadvantages of this option include a potentially unstable subgrade being left in place and a lessened life expectancy of the roadway as compared to a full depth reconstruction. The total estimated cost for this option is $180,110. Martini recommended the City also consider making improvements to the sanitary sewer system. Since replacement of the sanitary sewer would be very costly and disruptive, it is recommended that the existing sanitary sewer manholes be sealed and the existing sanitary sewer main be lined to reduce I & I. The estimated construction cost of this work is $108,580. Martini stated Staff is seeking direction from the City Council on how they would like to proceed based on the options presented tonight. If the Council would like to move forward with the project, plans and specifications would be prepared in June, with bids being received in July. Construction would start in August or September of this year. Edwards stated funding is available for the project within the City’s budget. FEMA provided the City with approximately $59,000 for certain repairs. Following the Watertown Road and Stubbs Bay Road projects, there will be approximately $106,000 in the General Fund balance and the anticipated total cost of the project is $215,000. Printup stated he is okay with the recommendation, but that he was wondering if that included the I & I issues. Edwards indicated it does not and that he will be bringing that topic to the Council in the next few weeks. Edwards stated it would be best to take care of the entire City’s infrastructure at the same time as the road project. Walsh noted this is a dead-end road with limited traffic and that given the water issues and sub-material, there is no guarantee of extending the life of the road between a partial reclamation and a full-depth reconstruction. Walsh stated he does not imagine getting 80 percent more life with full-depth reclamation versus partial depth reclamation. Walsh stated given the dollars, it seems to make the most sense from a longevity standpoint to go with the partial depth reclamation, which will still be a very good product. Martini stated the biggest difference between the two is the ability to put a new base in and to provide some separation between the sub-base and the roadway. Martini stated full-depth reclamation would provide a little more flexibility in the future to continue to reuse the base. Cornick asked if curbs and gutters will be installed for runoff. Item #03 - CC Agenda - 06/08/2015 Approval of Council Minutes 05/26/15 [Page 9 of 22]