Amendments to Purchase Order Number 6053935 with Green Infrastructure Partners Incorporated for Construction Services for the Basement Flooding Protection Program Phase 4 - Enhanced Road Rehabilitation on Heathrow Drive and Calvington Drive

As work progressed, it was brought to the City's attention that sections of Heathrow Drive (from 60 metres west of Chesham Drive to Jane Street) and Calvington Drive (from Dalsby Road to Lexfield Avenue) were in poor condition. This matter was investigated by staff and a further technical assessment was completed. Ultimately, it was determined that enhanced road rehabilitation, beyond the base scope of local road resurfacing, is required. The enhanced road rehabilitation will include replacing old asphalt layers with new asphalt layers and repairs of any damaged granular sub-base soft spots, as necessary, on sections of Heathrow Drive and Calvington Drive. Completing an enhanced road rehabilitation will extend the service life of the road and result in cost saving due to reduced maintenance. Working with AECOM, who is the City's design and contract administration consultant on this project, a construction cost of $600,000 was estimated as the upset limit for the additional work. As such, a Purchase Order Amendment for an upset limit in the amount of $600,000, net of all taxes and charges ($610,560 net of Harmonized Sales Tax recoveries) is being requested, revising the current Purchase Order value from $24,832,823 net of all taxes and charges ($25,269,880 net of Harmonized Sales Tax recoveries) to $25,432,823 net of all taxes and charges ($25,880,440 net of Harmonized Sales Tax recoveries). This amendment is necessary in order to complete the additional scope of work.

2. General Government Committee grant authority to the Interim Chief Engineer and Executive Director, Engineering and Construction Services to further negotiate the necessary amendment to the contracts with Green Infrastructure Partner Incorporated for additional scope of restoration on Heathrow and Calvington Drive, in accordance with the terms and conditions of the agreements and on terms, conditions and cost satisfactory to the Interim Chief Engineer and Executive Director, Engineering and Construction Services, and as a result to be able to amend the Purchase Order Number 6053935, as may be necessary from time to time, all in accordance with the condition of contract 19ECS-LU-01FP.