Royal Rouge Trail Erosion Control Project - Toronto and Region ...

Step 3: The Baseline Inventory
Class EA Planning and Design Process
A full description of the baseline will be documented in the final report for this
project that will:
• Ensure that both the directly and indirectly
affected environments are taken into
consideration during the development and
design of the preferred remedial measure
• Serve as a baseline from which to
monitor the effectiveness of the
action taken
Geotechnical Investigation and
Slope Stability Analysis
Geotechnical Investigation and
Slope Stability Analysis
#30 to #48 Royal Rouge Trail
Toronto, Ontario
Prepared by Terraprobe Ltd.
Mike Tanos, P.Eng.
Jason Crowder, P.Eng.
June 18, 2009
Terraprobe
Ltd.
Site Overview - Previous Investigations
Outline of Work
● Site Overview – Previous Investigations
● Geology and Subsurface Conditions
● Site Inspection 2007
● Existing Conditions 2009
● Development of Remedial Alternatives
● 1984 - Geotechnical Investigation (Soil-Eng) for subdivision plan
approval
● 1985 - Stormwater Management Report (Fred Shaeffer & Assoc) as part
of TRCA purchase of ravine land
● 1994 - TRCA retains Terraprobe to complete a slope stability
assessment behind 42 Royal Rouge Trail following collapse of fence.
Note: tree planting and gravel blanket placed previous year by TRCA T
(1993)
● 1997 - Terraprobe submits report of updated slope stability assessment
for 42 Royal Rouge Trail, following complaint of additional loss of
property. Buttress and plantings subsequently installed (1998)
● 2001 - Terraprobe completes updated slope stability assessment for 42
Royal Rouge Trail following complaint of additional loss of property.
Timber retaining wall, gravel and plantings subsequently installed
(2003)
● 2007 - Slope stability assessment for 30-48 Royal Rouge Trail by
Terraprobe commences following petition by residents (2004)
● 2008 – Terraprobe presents results of study to community
Terraprobe Ltd.
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