HomeMy WebLinkAboutDSD-18-167 - Dalewood Drive Sanitary Sewer RepairREPORT TO:Finance and CorporateServices Committee
DATE OF MEETING:December 10, 2018
SUBMITTED BY:Roslyn Lusk, P. Eng. Director, Operations Road and Traffic,
519-741-2200 x4599
Hans Gross, P. Eng. Director Engineering Services, 519-741-
2200 x7410
PREPARED BY:Leah Walter,P. Eng. Interim Manager, Maintenance and
Operations, 519-741-2200 x4517
Steve Allen, P. Eng. Manager Engineering Design & Approvals
519-741-2200 x7584
WARD(S) INVOLVED:Ward 2
DATE OF REPORT:November 29,2018
REPORT NO.:DSD18-167
SUBJECT:Dalewood Drive Sanitary Sewer Repair
___________________________________________________________________________
RECOMMENDATION:
Thatstaff be directed to proceed with the immediate repair of a segment of Sanitary
Sewer on Dalewood Drive to address ongoing sewage backup issues, with funding
for the repair to be allocated from the Sanitary Sewer Maintenance Account.
BACKGROUND:
City of Kitchener Operations has been maintaining an area of problematic sanitary sewer
on Dalewood Drivethrough the implementation of a regular,targeted flushing program.
City staff have responded to several instances of sewage backups/basement flooding.
The replacement of approximately 225 metres of this sanitary sewer will reduce or
eliminate the need for extensive flushing, and more importantly, will significantly reduce
the chances of sewage backing up into private service connections, thereby reducing the
cback-ups.
REPORT:
City of Kitchener Operations has been maintaining an area of sanitary sewer on
Dalewood Drive. This sanitary pipe was originally constructed in approximately 1965.A
shallow sanitary outlet to the street has resulted in an original installation of sub-standard
slopes in some areas. This coupled with localizedpipe settlement has resulted in poor
sewage flows in some sections of the sewerwhich significantly affec
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Please call 519-741-2345 or TTY 1-866-969-9994 for assistance.
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drain properly. Therefore,deposits accumulate and require regular and frequent flushing
to prevent blockages in the main line and up into residential service connections. The
current flushing cycle is every 2 months.City staffhave responded to 7instances of
sewage backups/basement floodingin the last 10 years, the most recent backup being
onMarch 5, 2018. The replacement of approximately 225 metres of this sanitary sewer
(see Figure 1) will reduce or eliminate the need forextensive flushing, and more
importantly, will significantly reduce the chances of sewage backing up into private
service connections, thereby reducing major inconvenience to homeowners and
potential liability for damages as a result of such instances.Design activities have
commenced to allow for the repair tobe completed early in 2019.
poor condition, the adjacent watermain will be replaced at the same time. Other
infrastructure within this area is in good condition (storm sewer, road, sidewalk, service
laterals etc.) and will be preserved where not in direct conflict with the planned work.
This street is not currently scheduled for replacement un
Infrastructure Program (WIP) for full reconstructions and will be at least 30 years before
it becomes a candidate for this program.
ALIGNMENT WITH CITY OF KITCHENER STRATEGIC PLAN:
Strategic Priority:Sustainable Environment & Infrastructure
FINANCIAL IMPLICATIONS:
Under normal circumstances, this work would be identified as a project in the 2019 budget
which is scheduled to be approved by council late January 2019, however this timing
would not allow construction to commence untillater in 2019, resulting in ongoing
maintenance costs and increased risk to homeowners. Given the relative urgency of the
work staff are recommending that funding be allocated in advance of the 2019 capital
budget.
The cost of the sanitary sewer repair,including design work, geotechnical investigations
and staff time,is estimated to be $538,994. This is apre-designestimate and has a
contingency of 20% built into the estimate. The repair will be funded fromthe Sanitary
SewerMaintenanceaccount which is forecast to have a budget remaining of$680,286at
the end of 2018before funding this work.The watermain replacement will befunded from
an existinguncommitted budget item.
COMMUNITY ENGAGEMENT:
*** This information is available in accessible formats upon request. ***
Please call 519-741-2345 or TTY 1-866-969-9994 for assistance.
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INFORM This report has been posted to
of the council / committee meeting.Residents have been notified by letter regarding the
issue and plans for upcoming work.
ACKNOWLEDGED BY: Denise McGoldrick, General Manager, Infrastructure
Services Department
Justin Readman, General Manager, Development Services
Department
Figure 1 Area of Sanitary Sewer Repair on Dalewood Drive
*** This information is available in accessible formats upon request. ***
Please call 519-741-2345 or TTY 1-866-969-9994 for assistance.
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