DocumentsStaff ReportMay 16, 2016Pages 39–41
Staff Report: Pre-Award Request – Lake Ida Ann Drain Replacement
Engineering report seeking pre-award authority to replace failed drain culvert and overflow culverts between Lake Ida Ann and Ashley Place within the fisheries construction window, with estimated construction cost and funding source identified.
Key facts
- Issue: collapse of primary drain culvert at Lake Ida Ann during late 2015 rains
- Estimated construction cost: $130,000 (not including GST)
- Tender invited to contractors; construction must be completed by fisheries window end (Sept 15, 2016)
- Funding: Miscellaneous Culverts & Drainage budget
Staff Report: Pre-Award Request – Lake Ida Ann Drain Replacement
Date: 16/05/2016
Department: Engineering
Subject: Pre Award Request – Lake Ida Ann Drain Replacement
Background
The Lake Ida Ann outfall structure experienced a collapse of the primary drain culvert during the heavy rains of late 2015. Following temporary repairs Engineering Staff retained Kerr Wood Leidal Associates to prepare the detail design and a tender package for full replacement of the failed drain culvert and overflow culverts running between Lake Ida Ann and Ashley Place. The tender opened to invited contractors May 6, 2016 and will close May 19, 2016. Engineering staff are asking for pre-award in order to complete the project in the fisheries window (final day of allowed construction is September 15, 2016) during low flow.
Commentary
The drain from Lake Ida Ann to Gardner Creek is split into two segments, separated by an open air ditch (Figure 1) beside the cul-de-sac of Ashley Place.
The large drain culvert running between the lake and the ditch is rusting along its base (Figures 2 & 3) and will be replaced. The two smaller overflow culverts that run between the lake and the ditch will be replaced with three smaller culverts to match the three existing culverts on the downstream side of the ditch. In addition to new headwalls for the large drain culvert and the set of overflow culverts, the open air ditch beside Ashley Place will be filled in and topped with gravel to allow for new off-street parking spaces for lake visitors. The option to further beautify this area remains a possibility for the future.
Invitations to bid on this project have gone out to the following contractors:
| Contractor | Tendered Price |
|---|---|
| Brunell Construction | TBD |
| York Excavating | TBD |
| Scansa Construction | TBD |
| Don Mann Excavating | TBD |
| Victoria Contracting | TBD |
Engineering Staff have retained the services of Applied Ecological Solutions Corp. as Environmental Monitor for this project. Kerr Wood Leidal Associates Ltd. will act as contract administrator on the project.
Financial Implications
Funding for the Lake Ida Ann Drain Replacement project is available from the Miscellaneous Culverts and Drainage budget. The construction cost for this project is estimated to cost $130,000 not including GST.
Legal Implications
The project does not require acquisition of any property and can be accomplished within the existing road right-of-way. There are no legal implications to this project.
Options
That Council:
Award the Lake Ida Ann Drain Replacement project to the lowest bidder assuming the bid is within the project budget, using funds from the Miscellaneous Culverts & Drainage budget;
OR
Not award the tender at this time.
Respectfully Submitted,
Submitted by:
Phillip Le Ross, Engineering Technologist
Concurrence:
George Henshall, AScT, Manager of Public Works
Concurrence:
Mike Leskiw, Parks and Recreation Manager
Concurrence:
Michelle Mahovlich, P.Eng, P.Geo, Director of Engineering
Concurrence:
Steve Ternent, Director of Finance
Concurrence:
Jim Bowden, Chief Administrative Officer
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