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Agenda Item: Approval of Change Order No. 11, City Contract No. 2012-183 A11, with <br />A. Miner Contracting, Inc., for construction of the Runway 21 L-3R Runway Safety Area <br />Improvement Project in the amount of $26,272.52 <br />change Urder #4 was for the removal and replacement of the REIL power equipment <br />from an existing foundation to new foundations. This issue was not identified during <br />design but was discovered after the start of construction. This change order resulted in <br />a net increase to the contract in the amount of $4,490.48. Because this change order <br />was less than $10,000 it was approved administratively. <br />Change Order #5 was for the replacement of airfield signage bases during the <br />installation of the paved runway shoulders. The scope of the project included the <br />construction of runway shoulders, requiring changes at existing sign base locations. <br />During the design phase it was estimated that two (2) existing bases would have to be <br />replaced rather than adjusted, however, the exact number could not be determined <br />without excavating all of them. The contractor ultimately replaced sixteen (16) sign <br />bases at a cost of $52,031.25. The line item was originally bid at $9,200 resulting in a <br />net increase to the contract in the amount of $36,781.25. <br />Change Order #6 was for the installation of reverse thrust blocks needed to plug the <br />termination ends of an existing 8-inch city waterline in two separate locations. This <br />item was identified and requested by the City Water Department after the design was <br />completed and the construction contract has been awarded. This change order resulted <br />in a net increase to the contract in the amount of $6,000. Because this change order <br />was less than $10,000 it was approved administratively. <br />Change Order #8 was for the installation of two (2) new vehicle gates in the new <br />perimeter security fence. These gates are needed by FAA maintenance personnel to <br />access the FAA's navigational aid equipment, however, the original project plans did not <br />call for the installation of these gates. This change order is a net increase to the contract <br />in the amount of $2,405.79. Because this change order was less than $10,000 it was <br />approved administratively. <br />Change Order #7 was for the placement of controlled low strength material (CLSM), in <br />lieu of granular backfill, within the removal limits of existing storm drain pipes across <br />Taxiway Delta. The Engineer specified the use of CLSM for this taxiway crossing in the <br />approved plans, however, the Technical Specifications document which take <br />precedence over the Plans, allowed the Contractor to bid alternate materials. The <br />Contractor was entitled to the difference in the cost between the two materials for a net <br />increase to the contract in the amount of $12,231.50. <br />Change Order #9 was for a required modification to the Airport Lighting Control and <br />Monitoring System (ALCMS) and for the placement of additional CLSM in storm drain <br />excavations across Runway 12-30. <br />The modification of the ALCMS was included in the contract as an allowance item; the <br />actual cost of the work was not known when the bid documents were prepared. The <br />difference between the contract allowance and the actual cost was $18,889.57. This <br />work is required for the existing ALCMS to operate the new lighting and electrical <br />equipment installed during this project. <br />2 <br />