TRANSMITTAL LETTER FOR BOARD MEETING OF MAY 7, 2015
COMMITTEE ON Procurement
Mr. David St. Pierre, Executive Director
Title
Authorization to amend the scope of work and amend agreement with Christopher B. Burke Engineering, Ltd., for professional engineering services for Contract 11-186-5C, Account 501-50000-601410, Purchase Order 3069585
Body
Dear Sir:
On August 11, 2011, the Board of Commissioners authorized the Director of Procurement and Materials Management to issue a purchase order and enter into an agreement with Christopher B. Burke Engineering, Ltd., for professional engineering services for Contract 11-186-5C, Preliminary Engineering for Addison Creek Reservoir, in an amount not to exceed $3,721,930.00. The contract expires on December 31, 2015.
There have been no prior change orders.
On March 17, 2011, the Board of Commissioners approved various flood control projects identified under completed Detailed Watershed Plans (DWPs) for preliminary engineering. Among the projects approved was the Lower Des Plaines River DWP project ADCR-6b, which included a 960 acre-foot floodwater detention reservoir and channel improvements along Addison Creek. Due to the size and complexity of the project, it was determined the most effective manner to study this alternative was to separate it into two components: (1) 960 acre-foot reservoir and (2) channel improvements. As such, the channel improvement portion is being studied under a separate agreement with a different consultant.
The original scope of work for the preliminary engineering services included a detailed review of the assumptions made with respect to the reservoir portion of Project ADCR-6b in the Lower Des Plaines River Detailed Watershed Plan, evaluation of right-of-way issues and permit requirements, and preparation of preliminary plans for use in defining a detailed scope of work for the engineering services necessary for the final design of this project.
Results from CBBEL's preliminary engineering work indicate that the construction of the reservoir in Melrose Park is feasible, but the cost of the project has significantly increased due to construction and land acquisition costs. Due to the rising cost, the Engineering Department believes an alternative site in Bellwood should be investigated. The Bellwood alternative site is located west of the intersection of Washington Boulevard and 25th Avenue. We believe this alternative site could significantly reduce the cost of the reservoir. The Engineering Department is requesting to amend the agreement to allow preliminary engineering work to be performed at the alternative site in Bellwood. The additional engineering work can be completed with the remaining funds of this contract.
This change order is in compliance with the Illinois Criminal Code since the change is due to circumstances not reasonably foreseeable at the time the contract was signed, and is in the best interest of the District.
It is hereby recommended that the Board of Commissioners authorize the Director of Procurement and Materials Management to execute an amendment to amend the scope of work and the agreement with Christopher B. Burke Engineering, Ltd., with no change in total contract amount.
Requested, Catherine A. O'Connor, Director of Engineering, WSS:JPM
Recommended, Darlene A. LoCascio, Director of Procurement and Materials Management
Respectfully Submitted, Barbara J. McGowan, Chairman Committee on Procurement
Disposition of this agenda item will be documented in the official Regular Board Meeting Minutes of the Board of Commissioners for May 7, 2015