Title
Consider and take action on a resolution authorizing a fourth amendment to the professional services agreement with AECOM Technical Services, Inc. for Storm Water Improvements 2012-2013 [DR1102] to increase the total compensation by $193,110 (Deputy City Manager)
Background:
Approval of this resolution will authorize a fourth amendment to the professional services agreement with AECOM Tehnicial Services, Inc. for Storm Water 2012-2013 [DR1102] to increase the total compensation by $193,100.
On April 22, 2012 City Council approved the professional services agreement with AECOM Technical Services, Inc. for restoration of the Interurban Channel (north of FM 517), and Nottingham Ditch (Calder Rd. to the Interurban Channel). The first phase of the approved services included the development of a Preliminary Engineering Report (PER) to evaluate the physical properties of the drainage features and develop design alternatives.
On March 26, 2013 City Council approved amending the Professional Services agreement to pursue environmental permitting identified in the PER.
On July 8, 2014 City Staff approved Work Change Directive No 2 for redesign the Nottingham Ditch to avoid the substantial financial impacts of environmental stream bank mitigation.
On October 12, 2016 City Council approved Work Change Directive No 3 for redesign of Nottingham Ditch to adjust for the impacts of abandonment and removal of an existing 16 inch asbestos cement water main.
Interurban Channel design was halted when significant costs to mitigation stream bank impacts were identified. Staff subsequently determined that a redesign that precluded mitigation costs should be pursued.
Work Change Directive No.4 is proposed to accomplish redesign that precludes stream bank mitigation costs. AECOM has determined that the time required for redesign of the Interurban Channel to be four (4) months. Based upon that time frame and the tasks detailed within this scope of work, AECOM request...
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