Opportunities to contribute your knowledge

As Canada's largest gathering of dam professionals, CDA uses its annual Conference to bring together experts and practitioners to discuss and develop knowledge on selected technical topics. Delegates are given important opportunities to contribute their experience and ideas to the CDA Working Groups that are creating guidance documents or professional development workshops.

Access to these forums is restricted to those who have registered for the CDA Conference or pre-conference workshops. No pre-registration for individual forums required.

List of Knowledge Development Forums

Knowledge development forums will be held Oct. 14 and 15, prior to the conference.

Forum A: Design & Construction Working Group
Forum B: Environmental Consequences and Classification of Tailings Dams

On-line Registration System

Forum A – Design & Construction Working Group (½ day)

Date: Saturday, Oct. 14, 2017, 1 pm - 4:30 pm

Since the 2014 CDA conference in Banff, a working group under the Dam Safety Committee has been advancing additional guidance on the design and construction aspects of dams.

The short document entitled “What dam owners need to know”, which can be found on the website, was the first product of this group.

Two additional documents entitled “A Primer on Dams, Canadian Perspective” and a future Bulletin “Design and Construction Considerations” are well advanced.

At this session, the working group will go over the contents of the documents and invite comments from the membership at large.  Draft copies will be furnished in advance to all conference attendees who indicate their interest in participating.

Forum B – Environmental Consequences and Classification of Tailings Dams (½ day)

Date: Sunday, Oct. 15, 2017, 1 pm – 4:30 pm

CDA’s Environmental Consequence Classification Working Group has been revising guidance for classification of mining dam failure consequence. The group presented an overview of the proposed variables and classification scheme, implementation, scope of effort, and approach to deriving a single classification at the 2016 CDA conference in Halifax. 

The 2017 Forum will demonstrate the proposed approach, using two beta-test examples: (1) Kam Kotia, a closed mine located in northeastern Ontario with high-sulfide tailings considered to be the worst abandoned mine site within the Province[1]; and (2) Mount Polley Mine where a subsurface failure beneath the perimeter embankment resulted in tailings release[2,3].

Participants are invited to seek clarification and to provide feedback on the proposed approach, which will help refine the next iteration of the classification guidance. 

[1] C.D. Hamblin and M.G. Kord. The Rehabilitation of Ontario’s Kam Kotia Mine: an Abandoned Acid Generating Tailings Site. http://pdf.library.laurentian.ca/medb/conf/Sudbury03/AbandonedSites/65.pdf
[2] Morgenstern NR, Vick SG, Van Zyl D (2015) Report on Mount Polley Tailings Storage Facility Breach: Independent Expert Engineering Investigation and Review Panel, Victoria (BC), Canada: Province of British Columbia report. 
[3] Nikl, L, Wernick, B, Van Geest, J, Hughes, C, McMahen, K and Anglin, CD (2016) Mount Polley Mine Embankment Breach: Overview of Aquatic Impacts and Rehabilitation. In: Proceedings Tailings and Mine Waste 2016, Keystone, Colorado, USA. October 2-5, 2016.