I emailed my concerns over the gravel extraction planned for the Chillwack Vedder river.
Below is a response I got from the Director of Planning & Engineering Chilliwack.
"Thank you for your email and your concern regarding protection of the Vedder River habitat. The City of Chilliwack shares your concern with the long-term protection of this valuable asset. The current Sediment Removal Program has been ongoing for over 30 years and the following document provides a summary description of the Vedder River and Canal history and process for sediment removal:
http://vedderriver.ca/reports/1-APEGBC-Article--Flood-Mngt-Vedder-River_Canal.pdf“Natural river processes carry sediment from the upstream Chilliwack River Basin into the Vedder River and Canal. Historically, approximately 50,000 cubic metres of sediment are deposited, on average, every year. The sediment reduces the channel’s capacity to convey the Design Flood Event (DFE) and thereby increases flood threat to surrounding communities. Sediment removal is necessary to maintain the provincially recommended level of flood protection (Q200), and removal sites are selected to preserve sufficient freeboard along the diking system during the DFE”
The environmental planning and monitoring of sediment removal has a long history of demonstrating that the process is able to accommodate the sediment removal to provide the necessary flood protection while also providing habitat enhancements. The habitat conditions for excavations are evaluated in detail pre and post excavation. Looking at the history of excavations on the river, the analysis shows that most excavations yield positive or neutral habitat outcomes. Excavation strategies to encourage habitat diversity and offsets, built into each excavation, helps to assure these results. The removal of sediment follows a set of guidelines and best management practices developed with input from experienced fish habitat biologists, various river engineers, and agency experts that has been shown, over more than two decades to yield a consistent set of flood protection and habitat benefits. The following website provides the background for the Vedder River Management Area Committee and includes links to previous and current planning and environmental reporting:
http://vedderriver.ca/ Frank Van Nynatten, in our Environmental Services Department is pleased to discuss this program in further detail or answer any questions you may have. Feel free to contact him at
vanny@chilliwack.com or call 604 793-2720
Thank you again for your interest in this process and taking the time express your concerns.
Best regards.
David Blain
David Blain, M.A.Sc., MBA, P.Eng. | Director of Planning and Engineering
P: 604.793.2907 | F: 604.793.2756 | E:
blain@chilliwack.com"
Seems they feel justified in their approach, confident in their reports and NOT inclined to listen to concerns.