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Mount <br />Mount Prospect Public Works Department <br />INTEROFFICE MEMORANDUM <br />TO: VILLAGE MANAGER MICHAEL E. JANONIS <br />FROM: PROJECT ENGINEER <br />DATE: JULY 31, 2014 <br />SUBJECT: 2014 BACKYARD DRAINAGE PROGRAM <br />(CONTRACT AWARD NOT TO EXCEED $100,000.00) <br />Background <br />Many properties in Mount Prospect experience recurring backyard flooding after any significant rain event. Often <br />water will pond in their yards and remain there for a considerable length of time. On May 13, 2008, the Village Board <br />authorized Staff to proceed with the Backyard Drainage Program in an effort to assist residents in reducing the <br />backyard flooding they experience. <br />Staff has received requests for assistance through the Backyard Drainage Program for over 200 residential <br />properties. Staff identified several of the properties experiencing the worst flooding, based upon such criteria as <br />depth of ponding, area of inundation, number of properties affected, structures impacted, and duration of ponding. <br />Staff then surveyed the existing conditions, and prepared plans to better drain each of these properties. Each design <br />includes an inlet in the backyard draining through a pipe connecting to the existing sewer system in the public right of <br />way. To protect the receiving system from being overwhelmed, each design includes a restrictor that will control and <br />slow the discharge into the receiving sewers. These restrictors, while serving to protect the Village sewer systems, <br />may cause water to pond in the backyards during heavy rain events for a short duration. To accommodate this <br />ponding water, rain gardens will be installed around the inlets. These rain gardens will provide a place for any <br />ponding water to accumulate, and provide a mechanism for the water to infiltrate into the ground quickly. <br />Following construction, the property owners will be responsible for maintenance of the storm sewer and rain gardens <br />on the private properties; however, it shall be the Village's responsibility to maintain the new storm sewer in the <br />public right of way. Each design is contained on a single property, avoiding the need for easements or agreements <br />between property owners. <br />Bid Results <br />Sealed bids for the 2014 BACKYARD DRAINAGE PROGRAM were publicly opened and read aloud on July 28, 2014 <br />at 1:00 P.M. A Notice to Bidders was published in a local newspaper as required and invitations were sent to <br />contractors familiar with this program. A mandatory pre -bid meeting was held on July 21, 2014 at 10:00 A.M. to <br />discuss the intent and specifics of the program, as well as to answer any questions the contractors may have had in <br />formulating their bids. Six (6) contractors attended the pre -bid meeting. <br />Three (3) of those contractors submitted bids for this project. The bids ranged from a low of $90,620.00 by Martam <br />Construction, Inc., to a high of $204,680.00 by Kovilic Construction Company, Inc. The Engineer's estimate for the <br />project was $99,634.00. <br />Each of the bidders submitted a bid bond in the amount of 5% of the total bid as required in the bid proposal packet. <br />All bids were checked for their accuracy. No errors were found. All bidders correctly signed their bids and bid bonds. <br />Below is a summary of the bids: <br />