From
Craig Alexander
Title
Change Order No. 3 with McMahon Contracting, Inc. in the amount of $9,834 for Capetown Drive paving, drainage, and wastewater improvements project
Presenter
Romin Khavari, City Engineer and Ron Culler, Director of Public Works
Recommended Action
Approve
Analysis
On April 5, 2016, the City of Grand Prairie awarded a construction contract to McMahon Contracting, Inc. in the amount of $3,018,611.49 and approved a 5% contingency of $150,930 for a total of $3,169,541.49 for the Capetown Drive paving, drainage, and wastewater improvements project.
The current proposed Amendment/Change Order No. 3 in the net amount of $9,834 provides for the construction of two 10-foot long modified combination curb inlets instead of the 10-foot recessed inlets due to conflicts with gas and a water main. The addition of the two 10-foot long modified combination curb inlets adds a total cost of $19,256, while the deletion of the two 10-foot recessed inlets included in the original design removes a total cost of $9,422, resulting in the net cost difference of $9,384 for this change order. The cumulative amounts requires City Council approval.
Amendment/Change Order No. 1 in the net amount of $54,908.51 provided for additional sawcutting of existing concrete pavement, the extension of a bore for the new 8” wastewater line in order to safely cross under a large storm drain line, and approximately 350 linear feet of 8” wastewater line which had to be removed and re-installed in order to achieve a lower elevation.
Amendment/Change Order No. 2 in the net amount of $30,129 provided for additional sawcutting and removal of existing concrete pavement, removal and replacement of additional concrete sidewalk and storm drain inlet tops along Carrier Parkway at the intersection with Capetown Drive, additional barrier free ramps, concrete stair treads for lead walks to some homes along Capetown Drive, and a 6-inch to 18-inch variable height curb wall along ...
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