Long-term Flood Mitigation Plan

Share on Facebook Share on Twitter Share on Linkedin Email this link

BACKGROUND

In November 2021, Abbotsford experienced one of Canada’s largest flooding disasters when the Nooksack River overflowed and breached its dyke and floodwater headed straight to Abbotsford, flooding Sumas Prairie. Recovery work is underway and more information can be found on the City of Abbotsford website.

The City of Abbotsford is working with engineering consulting firm Kerr Wood Leidal, to develop a long-term flood mitigation plan for Sumas Prairie. Through the plan, the City is considering different options designed to enhance the City’s existing flood related infrastructure and reduce flooding impacts to residents and the community. This work is separate from and builds on the work already being done as part of the City’s flood recovery.

The options being presented to Council have been developed for discussion with residents, businesses, governments and stakeholders. Options range in cost from an estimated $209 million to nearly $2.797 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie.

ENGAGEMENT OPPORTUNITIES

  • Sumas Prairie residents: We hope you received a letter sent to you about this project and the opportunities to engage with the City about the draft options so that you can provide your feedback on what matters most to you and your neighbours. If you would like to register to participate in upcoming neighbourhood engagement opportunities, please register as a Sumas Prairie resident below.

  • Abbotsford residents living outside of Sumas Prairie: The effects of the flooding were felt throughout our community. We want to hear from all residents about what’s most important to you as we develop a long-term flood mitigation plan.

The City of Abbotsford has also begun it’s intergovernmental conversations with Semá:th, Màthexwi and Leq’á:mel First Nations leadership. Provincial and Federal governments, City of Chilliwack, Fraser Valley Regional District, and Whatcom County, Cities of Everson and Sumas in the Washington State in United States, will also be engaged.

The City of Abbotsford will use all of the feedback we receive to inform our future plans and discussions with senior levels of government.

UPCOMING INFORMATION SESSIONS

View the Information Sessions - Sumas Prairie Residents have the opportunity to learn more about each of the four draft options and share their feedback on what matters most to them at one of the upcoming drop-in engagement sessions.

Session 1 - Tuesday, May 3, 6pm - 8pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.

Session 2 - Saturday, May 7, 11am - 2pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.

Session 3 - Tuesday May 10, 6pm - 8pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.


FLOOD MITIGATION OPTIONS

Currently, when the Nooksack River overflows its banks, the water floods adjacent land and flows towards the flood boxes on Sumas River in Abbotsford. If these flood boxes are closed due to the water levels of the Fraser and/or Vedder rivers, water is held back and can flood properties as demonstrated by the latest atmospheric events. Depending on the volume, water can overflow the Sumas Dyke into the former lake bottom area of Sumas Prairie. The November 2021 rainfall in Abbotsford was estimated to be approximately a one in 100-year event.

Four draft options developed for discussion with residents, businesses, governments and stakeholders range in cost from an estimated $209 million to nearly $2.797 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie. View the video describing the 4 options here.

  • Option 1: Status quo with enhancements to Barrowtown Pump Station.
  • Option 2: Status quo with enhancements to Barrowtown Pump Station and a new Sumas River pump station.
  • Option 3: Added floodway and storage area, enhancements to Barrowtown Pump Station and a new Sumas River pump station.
  • Option 4: Added narrow floodway, enhancements to Barrowtown Pump Station and a new Sumas River pump station and more.

On April 4, 2022, City staff presented these options to Council for their information. View the video of this Council presentation.

Options provide varying levels of enhanced flood mitigation compared to current infrastructure in place. The City of Abbotsford needs to take immediate action to implement a solution within our municipality so that our community is not as significantly impacted when future weather events occur. View the Comparison Table for further detailed information.

BACKGROUND

In November 2021, Abbotsford experienced one of Canada’s largest flooding disasters when the Nooksack River overflowed and breached its dyke and floodwater headed straight to Abbotsford, flooding Sumas Prairie. Recovery work is underway and more information can be found on the City of Abbotsford website.

The City of Abbotsford is working with engineering consulting firm Kerr Wood Leidal, to develop a long-term flood mitigation plan for Sumas Prairie. Through the plan, the City is considering different options designed to enhance the City’s existing flood related infrastructure and reduce flooding impacts to residents and the community. This work is separate from and builds on the work already being done as part of the City’s flood recovery.

The options being presented to Council have been developed for discussion with residents, businesses, governments and stakeholders. Options range in cost from an estimated $209 million to nearly $2.797 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie.

ENGAGEMENT OPPORTUNITIES

  • Sumas Prairie residents: We hope you received a letter sent to you about this project and the opportunities to engage with the City about the draft options so that you can provide your feedback on what matters most to you and your neighbours. If you would like to register to participate in upcoming neighbourhood engagement opportunities, please register as a Sumas Prairie resident below.

  • Abbotsford residents living outside of Sumas Prairie: The effects of the flooding were felt throughout our community. We want to hear from all residents about what’s most important to you as we develop a long-term flood mitigation plan.

The City of Abbotsford has also begun it’s intergovernmental conversations with Semá:th, Màthexwi and Leq’á:mel First Nations leadership. Provincial and Federal governments, City of Chilliwack, Fraser Valley Regional District, and Whatcom County, Cities of Everson and Sumas in the Washington State in United States, will also be engaged.

The City of Abbotsford will use all of the feedback we receive to inform our future plans and discussions with senior levels of government.

UPCOMING INFORMATION SESSIONS

View the Information Sessions - Sumas Prairie Residents have the opportunity to learn more about each of the four draft options and share their feedback on what matters most to them at one of the upcoming drop-in engagement sessions.

Session 1 - Tuesday, May 3, 6pm - 8pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.

Session 2 - Saturday, May 7, 11am - 2pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.

Session 3 - Tuesday May 10, 6pm - 8pm
Upper Sumas Elementary School 36321 Vye Road Abbotsford, B.C.


FLOOD MITIGATION OPTIONS

Currently, when the Nooksack River overflows its banks, the water floods adjacent land and flows towards the flood boxes on Sumas River in Abbotsford. If these flood boxes are closed due to the water levels of the Fraser and/or Vedder rivers, water is held back and can flood properties as demonstrated by the latest atmospheric events. Depending on the volume, water can overflow the Sumas Dyke into the former lake bottom area of Sumas Prairie. The November 2021 rainfall in Abbotsford was estimated to be approximately a one in 100-year event.

Four draft options developed for discussion with residents, businesses, governments and stakeholders range in cost from an estimated $209 million to nearly $2.797 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie. View the video describing the 4 options here.

  • Option 1: Status quo with enhancements to Barrowtown Pump Station.
  • Option 2: Status quo with enhancements to Barrowtown Pump Station and a new Sumas River pump station.
  • Option 3: Added floodway and storage area, enhancements to Barrowtown Pump Station and a new Sumas River pump station.
  • Option 4: Added narrow floodway, enhancements to Barrowtown Pump Station and a new Sumas River pump station and more.

On April 4, 2022, City staff presented these options to Council for their information. View the video of this Council presentation.

Options provide varying levels of enhanced flood mitigation compared to current infrastructure in place. The City of Abbotsford needs to take immediate action to implement a solution within our municipality so that our community is not as significantly impacted when future weather events occur. View the Comparison Table for further detailed information.

  • CLOSED: This survey has concluded.

    The City of Abbotsford is working with a team of consultants to develop a long-term flood mitigation plan for Sumas Prairie. Through the plan, the City is considering different options designed to enhance the City’s existing structural flood protection infrastructure and reduce flooding impacts to residents and the community.  

    The four options being presented to Council have been developed for discussion with residents, businesses, governments and stakeholders. Options range in cost from an estimated $100 million to nearly $2.3 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie.

    The City is now seeking feedback on these four options and will use the input received to support the identification of a preferred flood protection option. This preferred option will be presented to senior levels of government as part of a request for funding.

    Please take the survey to share what matters to you in terms of flood mitigation.  Information about engagement opportunities specifically for Sumas Prairie residents and business owners will be coming soon.

    SURVEY CLOSES MAY 15, 2022


    Take Survey
    Share on Facebook Share on Twitter Share on Linkedin Email this link
  • CLOSED: This survey has concluded.

    The City of Abbotsford is working to develop a long-term flood mitigation plan for Sumas Prairie and would like to hear from you as a Sumas Prairie resident and business. While there is a shorter survey online for all Abbotsford residents that is similar, this survey includes additional questions for Sumas Prairie residents and businesses only, as you were most significantly impacted. 

    Through the long-term flood mitigation plan, the City is considering different options designed to enhance the City’s existing structural flood protection infrastructure and reduce flooding impacts to residents and the community.  The four options presented to Council have been developed for discussion with residents, businesses, governments and stakeholders. Options range in cost from an estimated $100 million to nearly $2.3 billion and offer a range of flood mitigation and protection measures for residents and businesses of Sumas Prairie. 

    The City is now seeking feedback on these four options and will use the input received to support the identification of a preferred flood protection option. This preferred option will be presented to senior levels of government as part of a request for funding. 

    Please take the survey below to share what matters to you as a Sumas Prairie resident and/or business operator.

    SURVEY CLOSES MAY 15, 2022

    Take Survey
    Share on Facebook Share on Twitter Share on Linkedin Email this link
  • CLOSED: This survey has concluded.

    Over the coming months, the City would like to connect directly with Sumas Prairie residents to share additional details about the Build Back Better flood mitigations concepts, discuss how flood mitigation efforts may impact residents of Sumas Prairie, and hear feedback on what matters most to residents and their neighbours. 

     If you are a Sumas Prairie Resident and would like to register to be contacted regarding upcoming engagement opportunities with the City, please provide your contact information below. Please note – all fields are mandatory to register:

    Complete Form
    Share on Facebook Share on Twitter Share on Linkedin Email this link
Page last updated: 16 May 2022, 10:34 AM