Baseline/Woodroffe Stormwater Management Pond Class Environmental Assessment - Online Information Session: Deadline Extended
Post date: Nov 14, 2016 4:28:48 PM
UPDATE: November 21 Deadline Extended for Online Feedback. Public Meeting to be announced. http://www.rickchiarelli.com/baselinewoodroffe-stormwater-management.html
The City of Ottawa has initiated a Municipal Class Environmental Assessment (Class EA) for a Stormwater Management (SWM) Facility at the northeast corner of Baseline Road and Woodroffe Avenue. A stormwater management pond was initially recommended in the Pinecrest Creek/Westboro Stormwater Management Retrofit Study (2011) and underwent further assessment in the Feasibility Study for a Surface Stormwater Management Facility at Baseline Road and Woodroffe Avenue (2015).
Location of proposed stormwater management pond [PDF 3.57 MB ]
The study is being planned under Schedule B of the Municipal Class Environmental Assessment (October 2000, as amended in 2007, 2011 and 2015). To satisfy the requirements of the Class EA process, the study must:
Identify the existing conditions and constraints
Confirm and assess the options for the stormwater management pond
Document the process
Consider the work already undertaken
The Class EA will identify a preferred option and functional design for the pond.
Existing conditions and constraints
The following aspects of the site were studied:
Subsurface conditions (bedrock, surficial geology, groundwater)
Fish and aquatic habitat
Wetlands and Areas of Natural and Scientific Interest (ANSI)
Natural terrestrial vegetation
Wildlife and habitat
Species at risk and critical habitat
Aboriginal land claims
Public land ownership
Existing land use
Recreation and pedestrian/cycling routes
One of three landscape zones identified in the Study Area is considered. Hay fields evolved into what is now grassy meadow with woody vegetation seeding from the surrounding residential development. (City of Ottawa, 2015)
The existing conditions have been assessed and constraints and opportunities identified. The constraints and opportunities were then considered in developing and evaluating the options for the SWM pond and will influence its final design and construction.
An isolated Butternut tree along the northern edge of the site is the only species at risk verified by field studies to date. (City of Ottawa, 2015)
In the 2011 Retrofit Study, three types of stormwater management measures were considered in the development of the SWM retrofit scenarios:
Public and private lot level measures
These measures were based on an analysis of the study area characteristics and the study objectives. The 2011 Retrofit Study recommended that an end-of pipe facility (SWM pond) be built on National Capital Commission (NCC) property at the northeast corner of Baseline Road and Woodroffe Avenue.
Through the 2015 Feasibility Study, the specifications and requirements for the proposed SWM pond were refined and two conceptual designs (Option 1 and Option 2) were developed and evaluated. The NCC reviewed the options and chose Option 1 as its preferred design.
Both pond options:
Maximize water quality and flood control benefits within the space available
Minimize negative impacts on adjacent residents
Mitigate frequent flow impacts on Pinecrest Creek
The Baseline/Woodroffe SWM pond will be designed and built in accordance with best management practices for:
Erosion and sediment control
Noise By-Law adherence
Spill control measures
In addition to implementing best management practices, the following site-specific mitigation measures will be incorporated in the detailed design and construction to reduce or eliminate potential negative effects:
Detailed geotechnical investigations
Public communications plan
Pedestrian detour / management plan
Traffic management plan
Hoarding and exclusionary fencing
Reach 6 of Pinecrest Creek within the Study Area, parallel to Baseline Road. While erosion is occurring along the eastern bank of this section of the creek for approximately 25 metres, the remainder of Reach 6 is well vegetated and stable, with no erosion, as shown in this photo. (City of Ottawa, 2015)
Have your say!
Complete the feedback questionnaire. Please submit your responses and any other comments about the project by November 21, 2016. The study team will review all comments and respond to any concerns or questions before the Class EA report is completed.
Choose the preferred option (fall 2016)
Prepare the Class EA report (fall 2016)
Environment Committee and City Council approvals (winter 2016)
30-day public review of Class EA Report (winter 2016/early 2017)
Detailed design (2017)
Begin construction (2018/2019)
For further information or to provide comments, please contact:
Darlene Conway, P.Eng.
Senior Project Manager
City of Ottawa
110 Laurier Avenue West
Ottawa, ON, K1P 1J1
Phone: 613-580-2424, ext. 27611