HomeMy WebLinkAboutDTS-08-101 - Request for additional consulting fees, Stonegate watercourse reconstructionREPORT
Report To: Councillor Christina Weylie, Chair of Development &
Technical Services Committee
Date of Meeting: June 16, 2008
Submitted By: K. Grant Murphy, Director of Engineering
Prepared By: B. Daniel Kerr, Design & Construction Technologist
Ward(s) Involved: Ward 2
Date of Report: May 29, 2008
Report No.: DTS 08-101
Subject: REQUEST FOR ADDITIONAL CONSULTING FEES
STONEGATE WATERCOURSE RECONSTRUCTION
RECO~~ENDATION:
That the request for additional engineering fees of $ 46,913 (excluding G.S.T. submitted
by McCormick Rankin Corporation relative for Design, Approval and Contract
Administration for the Stonegate Watercourse Rehabilitation be approved.
BACKGROUND:
The Stonegate Watercourse includes the storm sewer outfall from Stonegate Drive and a
natural gully system that flows between (and parallel to) Stonegate Drive and Highway 8,
outleting to the Grand River. The storm sewer was originally constructed in the 1980s. Over a
period of time the gully has deepened and eroded as a result of both natural causes and the
additional runoff conveyed by the storm sewer outfall. By 2001 the erosion had become severe
enough that the failed gully slopes were starting to encroach upon the residential properties that
backed onto the watercourse.
REPORT:
In 2001, the City of Kitchener retained McCormick Rankin Corporation (MRC) to complete the
Schedule B Class Environmental Assessment and preliminary design for the Stonegate
Watercourse Erosion and Slope Stabilization project. The Environmental Study Report (ESR)
for this project was completed in 2002.
In 2005, the City retained MRC to complete the detailed design and Contract Administration
(CA) services for this project. The total consulting fees for this project was $59,900, excluding
applicable taxes, this includes the Design ($12,600), Contract Administration ($42,850), Post
Construction services ($4,450) and a 5 percent contingency. The scope of work assumed that
only minor refinement of the design presented in the ESR would be required. As well, the
estimated Contract Administration fee was based on a preliminary estimated construction value
of $285,000 and 25 Working Days for the contractor.
During the design and construction stage there was need to increase the scope of work due to
the following reasons:
After discussions with various City Departments and the Public, it was requested that the
consultant undertake the survey and stakeout to define grading limits of the watercourse,
update the vegetation inventory, revised landscaping, submit and obtain approvals from
MOE and GRCA, and additional meetings /liaison with different agencies and City staff.
The proposed consultant fees for the above task were $15,773, excluding applicable
taxes.
The project was tendered and awarded in October, 2006 and the construction started in
January 2007 to reduce erosion and achieve better slope stability. The total tender price
was $428,911 with total of 52 working days. However, the consultant's contract
administration fee estimate was $42,850 with a total of 25 working days. Therefore an
additional 27 working days is required for the consultant to coincide with the contractor's
proposal.
Due to the above scope change, the consultant is requesting the City to increase fees for the
detailed design in the amount of $15,773 and the contract administration fees in the amount of
$31,140.
The original purchase order was $59,900 excluding applicable taxes. Due to the scope
changes there is a need to increase the purchase order from $59,000 to 106,813.00, excluding
applicable taxes. Therefore, Staff recommend that MRC's purchase order be increased to
complete this project.
FINANCIAL IMPLICATIONS:
The total additional funding of $46,913 excluding applicable taxes, is required to complete this
project. The funding is available in the Stonegate Rehabilitation project, Index Code 855117.
CONCLUSION:
Due to the scope of change of this project, Staff recommends that MRC's request for additional
fees be approved to complete this project.
B. Daniel Kerr, C.E.T
Design & Construction Technologist
K. Grant Murphy, P. Eng.
Director of Engineering
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