Why The Flood Management Strategy Initiative?

The Lower Mainland Flood Management Strategy (LMFMS) initiative is aimed at the creation of a region-wide strategy to reduce flood risk and improve the flood resilience of communities along the lower Fraser River and south coast — from Hope to Richmond and from Squamish to White Rock.

Fill Knowledge Gaps

Improve Public Awareness

Identify Shared Solutions

Reduce Flood Risk

Phases of Strategy Development

PHASE 1 2014-2016

Flood Risk

Phase 1 reported on:

  • Coastal and Fraser River flood scenarios
  • Projected economic impacts
  • State of flood mitigation

PHASE 2 2016-present

Building the Strategy

Phase 2 work:

  • Flood modelling and mapping
  • Flood risk assessment
  • FloodWise website
  • Flood strategy development



Phase 3 work:

  • Final for endorsement by entities with flood responsiblities
  • Prioritization of recommendations
  • Implementation

BC’s Lower Mainland Flood Management Strategy

Latest Updates

  • Flood Modelling and Mapping in BC's Lower Mainland: Project Primer

Resource Profile: Flood Scenarios

May 18th, 2022|Categories: Resource|Tags: |

— Resource Profile: Flood Modelling Scenarios — May 2022 The Lower Fraser 2D Flood Model was used to simulate over 20 different scenarios to reflect floods of different sizes, projected climate change impacts and hypothetical sample dike breaches. Find an overview of this work in

Who is Involved in the Flood Management Strategy?

Participants in the Lower Mainland Flood Management Strategy initiative have responsibilities or interests related to flood management. Over 60 governments, agencies and other bodies have been involved, such as by providing funding, in-kind support and/or input on components of the work. The LMFMS is an opportunity for decision makers to work collaboratively on flood management.

Collaboration is important since a regional consensus on a flood management strategy can identify shared solutions and a compelling case for action at all levels.

Flood Scenarios Explained

A Lower Fraser 2D Flood model was developed in Phase 2 of the Lower Mainland Flood Management initiative to provide a better understanding of how flood waters could be expected to move across the land, to create flood hazard maps, and to evaluate different flood scenarios and mitigation efforts.


Check out the most Frequently Asked Questions on flood hazards and flood management


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