CSA W205:2019 pdf download.Erosion and sedimentation management for northern community infrastructure
1.1 General
CSA W205 applies to the management of erosion and sedimentation risks, including the evaluation, planning, design, implementation, monitoring, and maintenance of erosion and sedimentation risk management strategies and mitigation measures for new and existing infrastructure in northern communities. This Standard provides
a) an outline of procedures for conducting an overall risk assessment, including infrastructure vulnerability;
b) factors related to erosion and sedimentation to be considered in land use and infrastructure planning;
c) an overview of the typical drivers of erosion and sedimentation hazards to which this Standard is applicable;
d) the procedures to be applied and erosion protection measures to be considered in three primary environments:
i) coastal and lakeshore;
ii) open channel; and
iii) terrestrial.
e) a discussion of specific steps taken to evaluate and address erosion and sedimentation risks:
i) site-specific evaluation and risk assessment;
ii) planning and design; and
iii) structural measures.
f) best practices for managing erosion and sedimentation;
g) procedures for inspecting, monitoring, and maintaining erosion and sedimentation mitigation measures;
h) discussion on incorporating adaptive management;
i) roles and responsibilities of personnel organizing or supervising the installation, inspection, monitoring, and maintenance of erosion and sedimentation mitigations;
j) emergency response and contingency planning protocols for addressing failures or imminent failures in erosion and sedimentation mitigations implemented to protect infrastructure and the environment;
k) a framework for community-based processes for addressing erosion and sedimentation, and impacts to infrastructure; and
l) background information and relevant reference material.
Compliance with this Standard will allow users to demonstrate that the design and implementation of erosion and sedimentation risk management strategies and mitigation measures take into consideration, and are compatible with, the mitigations that may be required to preserve permafrost or reduce the disruptive effects of permafrost thaw. Because the performance of permafrost is often integral to the success of erosion and sedimentation risk management strategies, compliance with this Standard will help mitigate impacts to both onsite infrastructure, and the environment and infrastructure surrounding the project site.
1.2 Users
This Standard is intended for use by the following:
a) the owners and operators of buildings, structures, transportation or utility networks and facilities, hydro dams, or other infrastructure that can be affected by erosion and sedimentation;
b) the owners and operators of other community infrastructure (e.g., drainage systems) for which the mitigation of erosion and sedimentation is important;CSA W205 pdf download.