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M ® i CR -512 WENTWORTH DITCH RELOCATION - SHELTRA & SON - CHANGE ORDER NO. 2 & FINAL PAY APPLICATION County Engineer Roger Cain commented from the following memo dated January 28, 1994: TO: James Chandler County Administrator THROUGH: James W. Davis, P.. Public Works Directo ?z 00*11 FROM: Roger D. Cain, P.E. County Engineer 1 ,40 SUBJECT: CR 512 Wentworth Ditch Relocation IRC Project No. 8612 Sheltra & Son Change Order No. 2 & Final Pay Application DATE: ' January 28, 1994 DESCRIPTION AND CONDITIONS This is the final pay request for this project. The Contractor is requesting the county also release the retainage for this project. County Staff has inspected this project and is satisfied the work is in substantial conformance to the plans and specifications and that the amount requested by the Contractor is correct and per the contract. The Contractor is requesting a Change Order for additional work for quantities of excavation and embankment provided that exceeded the plan quantities. A letter from the Engineer, Mr. Wayne Westerman, is attached which summarizes his review of the final quantity determination for the Change Order submitted. The County kept a survey crew on this site the entire time of construction to take cross sections because the biggest item of cost was the earth work quantities and staff wanted to make sure the Contractor was paid only for the quantities actually done. While the over -run is high percentage wise, it should be understood the contract consisted primarily of earthwork which is susceptible of a higher than normal error in estimating due to the factors cited in Mr. Westerman's letter. It should also be remembered that the contract as completed has saved the county approximately $100,000 over the next low bidder. The original contract was for $244,996.75. This was increased by C. O. 1 in the amount of $15,200.00 to a new contract amount of $260,196.75. This Change Order in the amount of $33,848.85 gives a new and final contract amount of $294,045.60. Retainage in the amount of $25,341.43 has been withheld to date per the contract on prior payments of $228,072.87 leaving a final balance due of $65,972.73. ALTERNATIVES AND ANALYSIS Alternative 1: Approve Change Order 2 and the final pay application to the contract and release the retainage to the contractor. The Staff recommends the Hoard direct the Chairman to execute the change order on its behalf. 25 L-1- E B ROOK, 91 F,10E 7,194