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Title
Contract amendment No. 9 with Birkhoff, Hendricks and Carter in the amount of $45,000 for additional professional engineering services for the MacArthur Paving and Drainage Improvement Project
Presenter
Romin Khavari, City Engineer, and Walter Shumac, Director of Transportation.
Recommended Action
Approve
Analysis
On April 21, 2006, the City Council awarded a professional engineering services contract for MacArthur Boulevard widening from I-30 to Irving, in the amount of $440,800 to Birkhoff, Hendricks and Carter, L.L.P. Consulting Engineers.
In mid 2011, funding of the MacArthur Road Widening project was changed from the Federally Funded Texas Department of Transportation (TxDOT) to the locally funded North Central Texas Council of Governments (NCTCOG).
The proposed Contract Amendment No. 9 in the amount of $45,000.00 provides for construction administration cost of approximately $2,500 per month for the remaining 18-months of this project. Those services have been expanded to include monthly progress meetings, continued utility coordination meetings, including meetings to correct misplace utilities, site visits and field survey to determine utility locations.
Contract Amendment No. 1 in the amount of $100,025 (B.17 11/18/18) occurred during the schematic design phase of the project. City Staff determined that improvements to be made along MacArthur Boulevard from I-30 to Irving would impact the existing 100 year water surface elevation of the Trinity River floodway and flood plain and that these improvements needed to be analyzed by a hydraulics engineer. City staff concluded that the following hydraulic information was needed to be obtained: hydraulic data collection and field reconnaissance, hydraulic model analysis, generation of a flood plain/floodway report, and a bridge scour Report.
Contract Amendment No. 2 in the amount of $17,643 allowed for a redesign of an overflow channel in the Trinity River Flood plain/flo...
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