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Page 2 <br /> Final Payment to MPI for Rockridge Work Orders <br /> BCC Meeting — September 17, 2013 — CONSENT <br /> September 9, 2013 <br /> permitting. MPI recently met its contractual obligations with respect to its various Work <br /> Orders with the County. MPI's final task was complete in August 2013 when the U.S. <br /> Army Corps of Engineers issued a permit to mitigate environmental damage. <br /> Part of MPI's work included preparation of an Engineer's Opinion of Probable <br /> Construction Cost. MPI's final cost estimate, based on its final design drawings, is <br /> $7,213,000 which is considerably higher than the original $2,000,000 engineering and <br /> construction cost estimate provided by PBSJ in 2006. The Rockridge Subdivision <br /> Surge Protection Project is not funded in the current five-year Capital Improvement <br /> Plan. Originally, FEMA promised to reimburse a Phase 2 construction grant on a 75-25 <br /> percentage basis, with 75 percent of the costs paid by FEMA. However, now FEMA <br /> does not have enough funding for a 75-25 split. FEMA can now only reimburse <br /> $3,148,642 of the estimated $7,213,000 construction cost, which equals 43.65 percent. <br /> If a Phase 2 grant were issued for construction, the County must front all of the cost and <br /> would be reimbursed by FEMA only upon completion of the project and approval of all <br /> work by FEMA. Note that before FEMA will approve a Phase 2 construction grant, a <br /> benefit-cost analysis must be performed to determine if the project is still cost effective. <br /> The new benefit-cost analysis is being calculated by a DCA engineer and the results are <br /> not known yet. The original benefit-cost ratio was 2.45. To qualify for Phase 2 <br /> construction funding the ratio must be 1.00 or greater. <br /> ANALYSIS <br /> Alternative No. 1 — Approve release of retainage for MPI Work Orders No. 3-RR, 4-RR, <br /> and 5-RR. <br /> Alternative No. 2 — Reject release of retainage for MPI Work Orders No. 3-RR, 4-RR, <br /> and 5-RR. <br /> FUNDING <br /> The total $50,073.59 retainage for the Rockridge Surge Protection Project will come <br /> from Account #315-20600-06046, Optional Sales Tax /Retainage/Malcolm Pirnie. A <br /> breakdown of the retainage amount for each subject Work Order follows: <br /> • Work Order No. 3-RR = $35,352.70 <br /> • Work Order No. 4-RR = $ 9,865.29 <br /> • Work Order No. 5-RR = $ 4,855.60 <br /> Total = $50,073.59 <br /> FAPublic Works\KeithM\Stormwater Projects\Rockridge Subdivision\Agenda Items\Agenda Item-Final Payment to MPI-Arcadis.doc 111 <br />