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BOOK 48 mcF38 <br />D -EC 161981 <br />The Board of County Commissioners reconvened at 6:02 <br />o'clock P.M. with the same members present. <br />BOATING FUNDS FOR DOCKS AT MAC WILLIAM PARK <br />Commissioner Bird reported a request had been received <br />from the City of Vero Beach to expend $12,000 out of the <br />Boating Trust Funds for improvements at MacWilliam Park. <br />The Park and Recreation Committee felt this was a reasonable <br />expenditure and approval was recommended. These are the <br />most heavily used docks in the county. <br />City Engineer Cliff Suthard reported that the original <br />plan for replacing the docks at MacWilliam Park was to use <br />precast.pilings and prestressed slabs, but they found the <br />cost was quite high. Another alternative was wood, but this <br />was not favored because of the damage marine borers do to <br />wooden pilings. A third alternative was to use concrete <br />encased in PVC for the pilings. He stated that he has <br />talked to several contractors, and it is now proposed that <br />the bid have three alternates - one is a 6' wide dock of <br />reinforced concrete with PVC casing on the pilings, and the <br />other two alternates would be a 6' dock with wood pilings <br />and a 4' dock with wood pilings. Mr. Suthard continued that <br />they intend to replace as many of the six docks as the funds <br />will allow. <br />Commissioner Bird asked if $12,000 is the total cost of <br />renovation of six docks, and Mr. Suthard stated that is <br />estimated as a base bid - it might be closer to $15,000. <br />Commissioner Fletcher went into a detailed technical <br />discussion of the method of building the docks and the <br />advantages of using prestressed concrete for pilings, noting <br />that he has found the cost of reinforced concrete running <br />close to prestressed. He further noted that PVC that is out <br />in the sun too long gets brittle, and in addition, boats <br />banging into the PVC will crack it. <br />Discussion followed in regard to considering <br />prestressed concrete as an alternate bid. <br />65 <br />