Vedder River Management Area Committee

Vedder River Management Area Committee | Vedder River Management Area Committee. The Vedder River has historically been unstable and several major floods have inundated farmland bordering the river and caused severe damage to private property. A major flood in December 1975, caused significant damage in the community of Yarrow and the Greendale area (within Chilliwack), and a portion of Sumas Prairie (in Abbotsford). The flood caused infilling of almost the entire river channel downstream of the Vedder Crossing to the canal. The need for improved river management, including dyking and sediment removal along the Vedder River, became apparent.