Integrating Flood Mitigation, Sediment
Management And Habitat Enhancement On
Coastal Rivers Of British Columbia
Author(s)
D. McLean, V. Galay, B. Wright & W. Fleenor
Abstract
This paper describes the challenges of reconciling flood mitigation, sediment
management and aquatic habitat preservation on two rivers in British Columbia:
the Vedder River in the lower Fraser Valley and the Cowichan River on
Vancouver Island. Both rivers were channelized and modified greatly at the turn
of the last century and were diked to protect rapidly growing communities
against flooding. Both support important salmon stocks but have experienced
habitat loss due to past flood control works. The lower reaches of the rivers are
alluvial fans and are subject to gravel aggradation and avulsion hazards. River
management on these systems involves mitigating flood risks on stream channels
that are subject to aggradation and sediment deposition while preserving or
enhancing aquatic habitat.
Keywords: floods, alluvial fan, sedimentation, habitat, restoration.
Keywords
Keywords: floods, alluvial fan, sedimentation, habitat, restoration.
Related Book
Other papers in this volume
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