HomeMy WebLinkAboutDTS-06-149 - Extension of Engineering Services and Land Purchase for Stormwater Facility
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Development &
Technical Services
Report To:
Date of Meeting:
Submitted By:
Prepared By:
Ward(s) Involved:
Date of Report:
Report No.:
Subject:
Finance and Corporate Services Committee
October 23, 2006
Dave Mansell, P. Eng., Director of Engineering
Carrie Curtis, P. Eng., Senior Project Manager, Ext. 2419
Ward 1
October 4, 2006
DTS 06-149
EXTENSION OF ENGINEERING SERVICES AND LAND
PURCHASE FOR STORMWATER FACILITY - GUELPH
STREET RECONSTRUCTION AND SEWER OUTLET
RECOMMENDATION:
That the Mayor and Clerk be authorized to execute an Offer to Purchase, satisfactory to
the City Solicitor, with 1598094 Ontario Inc., for the purchase of a portion of lands
municipally known as 409 Weber Street West, Kitchener and 185 Weber Street, Waterloo,
for the purposes of constructing a stormwater pond, to an upset limit of $250,000, plus
any associated real estate fees and transaction costs to an upset limit of $15,000, and
further,
That the Mayor and Clerk be authorized to execute the necessary documentation to
complete the conveyance, and further,
That Council approve an extension of Conestoga-Rovers current Purchase Order in the
amount of $15,650 to complete a Schedule B Class Environmental Assessment in order
to implement the necessary stormwater controls during the Guelph Street
reconstruction.
BACKGROUND:
The residents of Guelph Street, particularly at Ellis Avenue and the railway crossing east of
Waterloo Street, have been experiencing flooding during storm events for a number of years.
The significant contributing drainage area flows from Guelph Street along the railway corridor to
the City of Waterloo who is also experiencing flooding from the contributing drainage area. In
2005 the City retained Conestoga-Rovers and Associates to undertake the design and contract
administration for the reconstruction of Guelph Street between Moore Street and Ellis Avenue
as well as the storm outlet between Guelph Street and the City limit. Analysis of the existing
storm system identified that the existing storm sewers were significantly undersized and would
require upgrading. However, increasing the capacity without controlling the stormwater would
have significantly exacerbate the flooding issues already experienced by the City of Waterloo
residents. Several alternatives were considered to control the stormwater including the use of
superpipes, infiltration galleries and stormwater management ponds. Analysis of these options
have identified that the most feasible and economical solution to resolving the flooding is the
implementation of a stormwater management facility.
REPORT:
In 2005, Council approved the selection of Conestoga-Rovers and Associates to undertake the
design and contract administration for the Guelph Street reconstruction project, originally
scheduled for construction in 2006. During the design phase several alternatives to alleviate
existing flooding issues were investigated. Based on the analysis, the most feasible and cost
effective option appears to be the construction of a stormwater pond at the rear of 409 Weber
Street West, Kitchener and 185 Weber Street, Waterloo. In order to implement this pond, a
Schedule B Class Environmental Assessment is required. As such, staff are requesting
Council's approval to undertake the Schedule B Class Environmental Assessment and
recommending the purchase of a portion of 409 Weber Street West. Discussions with the
property owner have commenced and subject to both parties reaching agreement on the terms
of an offer, staff support the purchase of this property. The upset limit for purchase of this
property is $250,000 with associated real estate fees and transaction costs of $15,000.
Extension of Conestoga-Rovers purchase order in the amount of $15,650 will also be necessary
to complete the Environmental Assessment. Implementation of stormwater controls have been
budgeted in index code 852413 (see Financial Implications below). Construction of the pond
and the reconstruction of Guelph Street (Moore Avenue to Ellis Avenue) would proceed in 2007
upon completion of the Environmental Assessment. In addition, the pond will be adequately
sized to accommodate both quantity and quality requirements for stormwater generated from
future expansion of 409 Weber Street. As such, cash in lieu and other stormwater controls for
this site will not be required as a condition of site development as stormwater from the site
would be directed to the pond.
FINANCIAL IMPLICATIONS:
Revenue:
Balance in Index Code 852413
$828,304.17
Expenses:
Purchase of Land
Real Estate Fees at 40/0 and Transaction Costs
E.A. Fees (CRA)
$250,000.00
$ 15,000.00
$ 15.650.00
$547,654.17
Balance for Construction
CONCLUSION:
In order to address the existing flooding issues on Guelph Street, several alternatives have
been identified and analyzed. Based on technical work completed to date, the City's only
alternative is to proceed with implementation of a stormwater facility and the proposed site
provides the optimal location for its construction. In anticipation that storage of stormwater
would likely be required, budget was allocated at the onset of the project in index code 852413.
Constructing this facility will alleviate existing flooding on Guelph Street as well as provide
additional water quality enhancement.
Dave Mansell, P. Eng.
Director of Engineering
Carrie Curtis, P. Eng.
Senior Project Manager, Engineering