TRANSMITTAL LETTER FOR BOARD MEETING OF NOVEMBER 21, 2024
COMMITTEE ON PROCUREMENT
Mr. Brian A. Perkovich, Executive Director
Title
Authority to increase Contract 17-131-4FR McCook Reservoir Rock Wall Stabilization and Geotechnical Instrumentation, SSA, Rebid, to IHC Construction Companies, L.L.C. in an amount of $339,389.82, from an amount of $22,079,118.61, to an amount not to exceed $22,418,508.43, Account 401-50000-645630, Purchase Order 4000086
Body
Dear Sir:
On March 3, 2022, the Board of Commissioners authorized the Director of Procurement and Materials Management to award Contract 17-131-4FR McCook Reservoir Rock Wall Stabilization and Geotechnical Instrumentation, SSA, Rebid, to IHC Construction Companies, L.L.C. in an amount not to exceed $14,980,000.00, plus a five (5) percent allowance for change orders, in an amount of $749,000.00, for a total amount not to exceed $15,729,000.00. The scheduled contract completion date is January 11, 2025.
As of November 8, 2024, the attached list of change orders has been approved.
Original Contract Amount $14,980,000.00
Date of Board Approval 3/3/2022
Cumulative Change Order (11/8/2024) $7,099,118.61
% Change of Original Contract Value 47.39%
Current Contract Value $22,079,118.61
Requested Increase $339,389.82
New Contract Value $22,418,508.43
% Change of Current Contract Value 1.54%
Total % Change of Original Contract Value 49.66%
The purpose of Contract 17-131-4FR is to stabilize the near-vertical excavated rock perimeter highwalls of the McCook Reservoir along with installing instrumentation devices for monitoring geologic movements at the McCook Reservoir. Work has consisted of the installation of drain holes, rock bolts, rock dowels, cable bolts, chain link wire mesh, and shotcrete at locations where deemed necessary for the stability of the rock walls at the McCook Reservoir.
The contract scope included an allowance item for incremental costs for the addition of rock bolts for any highwall stabilization work not included in the contract documents but later determined to be required and directed by the engineer. Due to stability concerns of the high wall discovered during a field inspection on April 11, 2023, the District’s geological consultant, Black & Veatch Corporation (B&V), recommended the utilization of rock bolts in two areas along the Stage 2 highwall that were not included in the original scope of the contract. The contractor submitted a cost proposal (CO-11) for an extra in the amount of $589,389.82 and a credit in the amount of $0.00, for a net extra in the amount of $589,389.92. The engineer reviewed the proposal, found it to be reasonable, and stated via correspondence CO11 that the Engineering Department would recommend its approval. The contract allowance Cost Proposal C Item 15 includes $250,000.00 for this work, requiring an extra in the amount of $339,389.82 under COR-11.
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 a change order to increase Contract 17-131-4FR, in an amount of $339,389.82 (1.54% of the current contract value), from an amount of $22,079,118.61, to an amount not to exceed $22,418,508.43.
Funds are available in Account 401-50000-645630.
Requested, Catherine A. O’Connor, Director of Engineering, KMF:LS
Recommended, Darlene A. LoCascio, Director of Procurement and Materials Management
Respectfully Submitted, Marcelino Garcia, 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 November 21, 2024
Attachment