2.260 RVO - North Saskatchewan River Valley and Ravine System Protection Overlay

To provide a development Setback from the North Saskatchewan River Valley and Ravine System and mitigate the risks associated with top-of-bank landslides, erosions, and other environmental hazards.

2.1. This Overlay applies to:
 
2.1.1. All lands within the North Saskatchewan River Valley and Ravine System, as shown on Area 1 of Appendix I of this Overlay; and
2.1.2. All lands within 10.0 m of the North Saskatchewan River Valley and Ravine System, as shown on Area 2 of Appendix I of this Overlay.
2.2. Despite Subsection 2.1, for lands on which the boundary of this Overlay applies to only a portion of a Lot, the provisions of this Overlay apply to the entire Lot.
2.3. Despite Subsection 2.1, the boundary of this Overlay is a general boundary and is subject to more precise locations that are established through the approval of subdivision plans or survey plans of the top of bank. In these cases, the Development Planner will amend Appendix I to reflect the more precise boundary.

 

3.1. Development within the boundaries of this Overlay but outside of the North Saskatchewan River Valley and Ravine System, as shown in Area 1 of Appendix I of this Overlay, must maintain a minimum Setback of 10.0 m from the North Saskatchewan River Valley and Ravine System, as shown in Area 2 of Appendix I of this Overlay.
 
Diagram for Subsection 3.1
Diagram for 2.260_3.1
3.2. The Development Planner may consider a variance to Subsection 3.1 if the variance is supported by the geotechnical engineering study specified in Subsection 3.3 or 3.5.
3.3. For any development on a Site that is partially or wholly contained within the boundaries of this Overlay: 
 
3.3.1. the applicant must submit a geotechnical engineering study, as specified in Subsection 5 of Section 7.140; and 
3.3.2. the study must include, in addition to any other information required under Subsection 5 of Section 7.140:
 
3.3.2.1. the minimum Setback for structures on the Site; and
3.3.2.2. development conditions for the property that are required to prolong the stability of the bank.
3.4. In addition to Subsection 3.3, the Development Planner, in consultation with the City department responsible for geotechnical engineering, may require the applicant to submit information regarding the existing and proposed Grades at 0.5 m contour intervals.
3.5. Despite Subsection 3.3, for the development or removal of an Accessory building or structure that is partially or wholly contained within the boundaries of this Overlay, the Development Planner, in consultation with the City department responsible for geotechnical engineering, may require the applicant to submit:
 
3.5.1. information regarding the existing and proposed Grades at 0.5 m contour intervals; and
3.5.2. a geotechnical engineering study in compliance with Subsection 5 of Section 7.140.
3.6. The Development Planner, in consultation with the City department responsible for geotechnical engineering, must apply conditions to the approval of the Development Permit necessary to minimize slope instability and other geotechnical hazards identified in the required geotechnical engineering study specified in Subsections 3.3, 3.4, and 3.5.
3.7. Despite Subsection 2.2.2 of Section 7.60, Water Retention Structures on a Site Zoned residential that is partially or wholly contained within this Overlay must be a Discretionary Development.
3.8. The following developments on a Site Zoned residential that is partially or wholly contained within this Overlay are not permitted:
 
3.8.1. above or underground sprinklers and irrigation systems; and
3.8.2. roof leaders, downspouts and sump pump discharge spouts that discharge into or onto the ground.
3.9. A Rear Yard, Interior Side Yard, or Flanking Side Yard on a Site Zoned residential that is partially or wholly contained within this Overlay:
 
3.9.1. must primarily be Landscaped with permeable Landscaping materials; and
3.9.2. must not contain a total area of Impermeable Material greater than 12.0 m2 per Yard. 
3.10. Fences that contain or are constructed of hazardous materials, such as barbed wire, or which have sharp pickets extending above the top rail, are not permitted.