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The Center for Native Grasslands Management

Title: Considering Grass-Based Covers for the Winnipeg Floodway Project
Year: 2005
Author(s): Dickerson, J. A., Cowan, W.
Source Title: Proceedings of the 4th Eastern Native Grass Symposium
Source Type: Proceedings
pages: 200-213
Original Publication:  
Abstract: The Red River Floodway Expansion Project will enhance the carrying capacity of the channel that protects the City of Winnipeg. Approximately 32 million square meters of freshly exposed subsoils must be vegetated during the five-year reconstruction project. Concerns about flood tolerance and meeting secondary criteria for floodway uses were addressed in a vegetation concept report prepared for KGS Group, the primary engineering consultant for the initial project phase. Grass-based vegetation options were considered for tractive stress tolerance, inundation tolerance, adaptation to expected soil conditions, local climate, management implications, forage production, and potential recreational and aesthetic uses of the floodway. The original floodway was planted to a smooth brome, alfalfa, and red fescue mix that has degraded to red fescue and Kentucky bluegrass over broad areas, while a volunteer mix of herbaceous and woody species now dominates the floodway floor. Native grass species are adapted to the site conditions and offer a long-term cover option with associated benefits to the site. Seed of Manitoba selections is available in the marketplace in sufficient quantities to meet the planting goals of the project.
Publisher: The University of Kentucky Department of Forestry, Lexington, Kentucky
Editor(s): T. G. Barnes