Location
Burnaby, British Columbia
Expertise
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Associated Engineering was retained by the City of Burnaby to complete a Master Drainage Plan (MDP) to help the City to effectively manage stormwater and flooding conditions in the study area.
The Big Bend MDP focusses on the Fraser River floodplain located between Burnaby’s South Slope and the Fraser River. Drainage of the study area is affected by tidally influenced water levels in the Fraser River. In the future, climate change impacts, including changes to precipitation patterns and projected sea level rise of 1 m in magnitude or more by the year 2100, will increase the risk of flooding. The objective of the MDP is to efficiently evaluate the capacity of the existing drainage system and quantify the impact of flooding in the Big Bend study area.
Client
City of Burnaby
Project Highlights
A hydraulic 1D/2D computer model was created using MIKE-FLOOD, MIKE-URBAN and MIKE-21 FM to represent the storm system for the study area. MIKE-21 FM was used to model the major system (overland flow) in 2D. The 1D model was utilized to model components such as small and medium natural waterways, pipes, ditches, culverts, stormwater ponds, pump stations and flow control structures. The 2D model, on the other hand, contains all major topographic features, such as roads within the street network and adjacent properties, railways, channels and dikes so that overland flooding and surface conveyance will represent the current topographic condition. The benefit of this approach is that it provides the City with information on where the uncollected or surcharged water goes when it flows through the project area.
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