Integrated Watershed Management

Watershed Boundaries MapCoquitlam manages stormwater within watershed boundaries to ensure that properties are protected from flooding and impacts to the environment are minimized.  A watershed is defined as an area of land where all of the water drains to the same place. The following figure shows the location of watersheds in the City.

For all urban watersheds, Coquitlam is developing integrated watershed management plans (IWMP) to preserve watershed health, while also meeting community needs and facilitating growth and development. IWMP’s use a Net Environmental Benefit approach that strives to improve fish and fish habitat.

An IWMP investigates issues related to the quality and quantity of stormwater runoff, flood protection, environmental protection of aquatic resources, wildlife and their habitats, land use, greenways, and recreation. The IWMP’s outline cost effective solutions (capital, operation and maintenance) complete with implementation and maintenance plans.

An IWMP is to be cost-effective, scientifically defendable, supported by the public, and endorsed by the environmental agencies.

Hyde Creek IWMP

Hyde Creek is a watershed located on Burke Mountain in northeast Coquitlam and partly in Port Coquitlam. The watershed encompasses Hyde, Watkins, West Watkins, Smiling, West Smiling and Burke Mountain Creeks.

The Coquitlam portion of the watershed is a near Greenfield and lies within the Northeast Coquitlam Area Plan, which calls for the development of a community of 7,500 dwelling units and 24,000 people. 

The IWMP provided valuable input into the Lower Hyde Creek Neighbourhood Plan, Upper Hyde Creek Neighbourhood Plan and Smiling Creek Neighbourhood Plan to ensure that watershed health is preserved while facilitating orderly land development.

The key issues addressed in this watershed are:

  • Flood protection of low lying lands, mainly in Port Coquitlam
  • Stream flow protection
  • Stream water quality protection
  • Riparian area protection
  • Fish habitat restoration and enhancement
  • Mitigation of stream erosion in steep grades
  • On-site Rainwater Management to mimic the natural hydrology
  • Integration of land development with stormwater management

See the plan: Hyde Creek IWMP |  Hyde Creek Watershed Map

Partington Creek IWMP

Partington Creek is a 625 ha watershed located on Burke Mountain in northeast Coquitlam.  The watershed ismainly covered by second growth forest, and supports rich aquatic and wildlife systems.  This watershed is withinthe development area identified in the Northeast Coquitlam Area Plan, which calls for the development of acommunity of 7,500 dwelling units and 24,000 people.

The IMWP provides valuable input into the Partington Creek Neighbourhood Plan to ensure that watershed healthis preserved while facilitating orderly land development.

The key issues addressed in this watershed are:

  • Flooding in low lying farmlands
  • Stream flow protection
  • Stream water quality protection
  • Riparian area protection
  • Fish habitat restoration and enhancement
  • Mitigation of stream erosion and sediment management
  • On-site Rainwater Management to mimic the natural hydrology
  • Integration of Land development with stormwater management

See the plan: Partington Creek IWMP | Partington Creek IWMP Appendices

Como Creek IWMP

The Como Creek watershed covers approximately 850 ha and is located in Southwest Coquitlam. A stormwater management plan for this area completed in 2002 was the “first urban drainage study in the Greater Vancouver region to truly integrate engineering, planning and ecological perspectives through an interdisciplinary process that included community involvement.” (Stormwater Planning Guidebook, 2002). The plan established a vision and high level objectives for the watershed. 

In order to identify specific projects and bring the plan up to date with current approaches to watershed planning, a 2014 Como Creek Integrated Watershed Management Plan was completed. It incorporates findings from the earlier plan but also includes a comprehensive environmental assessment and capacity analysis for the storm sewer system. 

The key components of the watershed management strategy address:  

  • Erosion and sedimentation
  • Stream health and water quality
  • Upgrades to the storm system
  • Localized flooding
  • Rainwater Management requirements for new developments
  • Watercourse improvements - instream and riparian restoration and enhancement opportunities 

See the plan: Como Creek IWMPComo Creek IWMP Appendices

Nelson Creek IWMP

The Nelson Creek watershed is located in southwest Coquitlam and is 250 ha in area. Nelson creek is contained within the underground stormwater system for its upper lengths and in open channels in downstream areas.  

The Nelson Creek IWMP was adopted in July 2012.

The key issues addressed in this watershed are:

  • Integrate land development with stormwater management
  • Stream water quality
  • On-site Rainwater Management to mimic natural hydrology
  • Stream erosion and sediment transport
  • Stormwater detention and diversion
  • Storm system capacity
  • Aquatic habitat restoration and enhancement
  • Riparian area protection

See the plan: Nelson Creek IWMP | Nelson Creek IWMP Appendices

Maple Creek IMWP

The Maple creek watershed is approximately 192 ha and is located in both the City of Port Coquitlam and the City of Coquitlam.

Work for this IWMP is currently underway, with completion expected in 2015.

Key issues to be addressed in this watershed are:

  • Flooding
  • Poor stream water quality
  • Riparian encroachment and lack of riparian cover
  • Low summer steam flows
  • Barriers to fish passage
  • Aquatic habitat restoration and enhancement
  • On-site Rainwater management to mimic natural hydrology

 

Chines IWMP

The Chines is a series of watersheds that lie within the cities of Port Moody and Coquitlam.  This watershed includes the Schoolhouse Creek, Kyle Street, Williams Street, Pigeon Creek and Suterbrook sub catchments.

Work on this IWMP is currently underway, with completion expected in 2015.

Key issues addressed to be addressed in this watershed are:

  • Environmental enhancements
  • Slope stability
  • Stream corridor management
  • Flooding, erosion and sedimentation control

See the draft plan: Chines IWMP

 

Scott Creek IWMP

The Scott Creek basin is located on the south slope of Eagle Mountain in northwest Coquitlam.  The drainage system collects stormwater runoff for a 1,950 ha watershed that includes Scott Creek, Hoy Creek and their tributaries, approximately 160km of storm drain pipes, two flow diversion systems and Lafarge Lake.

The key issues addressed in this watershed are:

  • Mitigate stream erosion in steep grades
  • Control sediment deposition in the flat watercourse reaches
  • Flooding in lower Scott Creek
  • Management of base flows
  • On-site Rainwater Management to mimic natural hydrology
  • Stream and riparian habitat protection
  • Protection of fish spawning areas

See the plan: Scott Creek IWMP

Stoney Creek IWMP

The Stoney Creek watershed comprises a main stem plus three tributary channels that originate on Burnaby Mountain and discharge to the Brunette River. The area encompasses parts of Burnaby, Coquitlam and Port Moody as well as Simon Fraser University.

The key issues addressed in this watershed are:

  • Stormwater detention and flow diversion to protect the natural watercourses
  • Stream water quality
  • Riparian corridor protection
  • Aquatic habitat restoration and enhancement
  • Flood protection
  • Reduce impervious area and surface runoff

See the plan:  Stoney Creek IWMP

Austin/Rochester IWMP

The Austin and Rochester Creek watersheds are located in a highly urbanized area of the City at its western borders with Burnaby and New Westminster. Both creeks are largely piped, but some daylighted portions still exist. Austin Creek and its tributaries flow through portions of Coquitlam and Burnaby, before discharging to the Brunette River. Rochester Creek flows from Rochester Avenue to Edgar Avenue where it is piped to the Brunette River.

Key objectives for this watershed are to:

  • Protect the daylighted sections of watercourses
  • Preserve and improve water quality, food and nutrients
  • Enhance riparian habitat along the streams
  • Improve the drainage system capacity
  • Integrate land use planning in the Burquitlam and Lougheed neighbourhoods.

See the plan: Austin Rochester IWMP

Mundy Creek IWMP

The Mundy Creek watershed is located in Southwest Coquitlam, roughly bounded by Mundy Street to the West, Como Lake Ave to the North, Mariner Way to the East and Fraser River to the South. The watershed features Mundy Lake and Mundy and Riverview Creeks. The upper watershed is forested (Mundy Park) while the lower watershed contains mostly residential and some commercial/industrial land use. 

Work for this IWMP is currently underway with completion expected in 201​5.

See the Plan: Mundy Creek IWMP

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