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Title
Contract amendment No. 12 with Birkhoff, Hendricks and Carter in the amount of $29,250 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. 12 in the amount of $29,250 is requested to complete phases outside construction administration services and for the preparation of the LOMR to comply with FEMA. FEMA has also increased the $5,300 fee for their review by $2,950, resulting in the review fee of $8,250. An additional $2,950 for this fee is part of this request.
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/floodway. Upon receipt of the hydraulic information c...
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