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Integrated Stormwater Management Plan (ISMP)

ENG-ISMP

In BC, the term Integrated Stormwater Management Planning (ISMP) has gained widespread acceptance by local governments and environmental agencies to describe a comprehensive, ecosystem-based approach to rainwater management.

The purpose of an ISMP is to provide direction for future development plans and identify infrastructure needs. The goal is to balance:

  • Land use planning
  • Stormwater engineering
  • Flood and erosion protection
  • Environmental protection

In the past, stormwater management planning had a primary function to identify the infrastructure needed to service increased development. The impacts of development were given little consideration.

Today’s stormwater management planning has evolved significantly to become a comprehensive approach to also include the preservation and utilization of resources within a watershed. An ISMP is intended to balance the land use needs with the natural values and functions of the watershed.

Traditional stormwater management planning

  • Drainage Systems
  • Reacting to Problems
  • Engineer-Driven
  • Protect Property
  • Pipe and Convey
  • Unilateral Decisions
  • Local Government Ownership
  • Extreme Storm Focus
  • Peak Flow Thinking

Integrated stormwater management planning

  • Ecosystems
  • Preventing Problems
  • Interdisciplinary Team-Driven
  • Protect Property & Habitat
  • Mimic Natural Processes
  • Consensus-Based Decisions
  • Partnerships with Others
  • Rainwater Integrated with Land Use
  • Volume-Based Thinking

Completed ISMPs

Contact EngWebmail@surrey.ca or 604-591-4340 if you would like more information on any of the ISMP projects. See the ISMP map, and read more about the plans at Metro Vancouver.

Anderson Creek

See the detailed Anderson Creek ISMP area here. Initiated in 2012, the Anderson Creek ISMP is a joint project with the City of Surrey and the Township of Langley. The overall watershed is approximately 3,200 hectares with about 20% west of 196 Street and in the City of Surrey. Roughly half of the watershed within Surrey is in the Agricultural Land Reserve while the remainder is either planned for industrial and commercial uses within the Campbell Heights Local Area Plan or currently zoned as agricultural within the Official Community Plan.

Bon Accord-North Slope (East)

See the detailed Bon Accord-North Slope (East) ISMP area here. Initiated in 2013, this ISMP consists of the Bon Accord and North Slope (East) catchments. The study area drains north into the Fraser River and covers an area of approximately 2,100 hectares. Generally, each sub-watershed within this ISMP study area contains a developed upland area with urban residential and commercial land uses draining down the North Slope escarpment to the lowlands adjacent to the Fraser River. Overall, in-fill development and re-development are expected in the upland areas but substantial land use changes are not expected.

Along the Fraser River, there is a portion of the study area within the200-year return period floodplain where there is no dyke protection. Land uses in the lowlands are primarily industrial and commercial where the railways are a significant presence. Flooding of the lowland areas is a concern due to limitations in drainage capacity imposed by low gradients and inadequately sized drainage structures. Significant fisheries water courses exist in these catchments in both the lowlands and upland portions of the study area.

The Bon Accord-North slope (East) consultant team is actively looking for input into the plan development and has highlighted more information about the Bon Accord-North slope (East) ISMP process on it's own webpage.

Bridgeview-North Slope (West)

See the detailed Bridgeview-North Slope (West) ISMP area here. Initiated in 2012, the Bridgeview-North Slope study area includes the Bridgeview and North Slope (west) watersheds. As a northern gateway to the City, this study area is a highly developed and visible neighbourhood that will also be impacted by major capital projects in the near future. These major projects include extension of the Fraser River dykes, South Fraser Perimeter Road, Pattullo Bridge replacement, Kinder Morgan Trans Mountain pipeline expansion, and Metro Vancouver’s North Surrey Interceptor twinning. The study area drains north into the Fraser River and covers an area of about 750 hectares. Current land uses in the Bridgeview-North Slope study area are predominantly urban and industrial. There are no areas of substantial greenfield development. Future land uses will be affected by the Surrey City Centre plan which starts south of 112 Avenue. Almost half of the overall study area is within the 200-year floodplain of the Fraser River. Drainage relief into the River is provided through a number of floodboxes and pump stations.

Cruikshank/Grenville

See the detailed Cruikshank/Grenville ISMP area here Initiated in 2011, this ISMP covers the Cruikshank and Grenville watersheds which are almost completely developed with industrial and urban residential. Commercial “big box” store developments, a small number of multiple residential developments, a BC Hydro site, BC Hydro high voltage transmission lines, Southern Railway of BC (SRBC) main track and industrial spurs, and the west portion of Bear Creek Park are located within the study area.

The study area is 1,380 hectares and slopes from west to east at an average gradient of 2.0 %. A portion of the drainage area is within the Corporation of Delta. The study identifies three catchments; Delta: 80 ha, Cruikshank: 779 ha, and Grenville: 521 ha. The ISMP study area is located upstream of the Bear Creek ISMP study area.

Historic development and old engineering ideas have impacted some of the natural waterways and have limited some fish access into upper reaches of the catchment. There are also some historic water quality concerns from past industrial practices in the area. Improving fish access, riparian areas and water quality are focuses of the ISMP.

Elgin, Barbara, and Anderson Creeks

See the detailed Elgin, Barbara and Anderson creeks ISMP area here. Initiated in late-2012, the Elgin, Barbara, and Anderson Creeks ISMP study area drains north into the Nicomekl River upstream of the sea dam. The study area covers approximately 870 hectares and includes three watercourses. The three water courses are fisheries spawning systems. For years volunteer stream keepers have been helping to protect and manage the in stream and riparian habitat.

Current land uses in the Elgin, Barbara, and Anderson Creeks area are predominately urban and suburban. The area may be subject to long term re-development into higher density urban land uses. Various land use plans exist for the area to guide development. The ISMP confirms past drainage strategies to mitigate development practices plus adds new science to be included in the servicing designs.

Latimer ISMP

See the detailed Latimer ISMP area here. Covering the Latimer catchment, the ISMP study area is approximately 615 Ha. The study will focus on the north catchment of Latimer creek.

The land use is rural agricultural and suburban. Long term development will see increasing density to single family residential and commercial. The ISMP will focus on the development while protecting fish habitat and lowland farms.

The Latimer consultant team is actively looking for input into the plan development and has highlighted more information about the Latimer (ISMP) process on it's own webpage.

Ocean Bluff / Chantrell Creek

See the detailed Ocean Bluff/Chantrell Creek ISMP area here. The Ocean Bluff Chantrell Creek ISMP was initiated in 2012. Chantrell Creek drains north into the Nicomekl River while the Ocean Bluff catchment drains north into Mud Bay, west into Boundary Bay, and south into Semiahmoo Bay. The overall study area comprises 1,800 hectares, including both the Ocean Bluff and Chantrell Creek watersheds. The area is developed as suburban and urban with no substantial development or re-development anticipated.

For many years the City and local stream keepers have worked on Chantrell Creek to improve fisheries passage and habitat plus address erosion concerns. Chantrell is open to the marine river system however in a modified alignment. One of the key outcomes of this study will be to look at restoring the historic alignment of the creek.

South Westminster

See the detailed South Westminster ISMP area here. Initiated in late-2012, the South Westminster ISMP study area drains northwest into the Fraser River and covers an area of approximately 1,250 hectares. It encompasses the following watersheds: Manson, Old Yale, and Pattullo. Current land uses in the South Westminster study area are predominately urban and industrial with very few areas of greenfield development. The study area contains the South Westminster Neighbourhood Concept Plan (2003) which outlines local continued redevelopment. Approximately 140 ha of the overall study area is within the 200-year floodplain of the Fraser River and drainage relief into the river is provided through floodboxes and pump stations. There are numerous significant infrastructure projects underway or planned in the near future for this area including the South Fraser Perimeter Road, Metro Vancouver’s North Surrey Interceptor twinning, Port Metro Vancouver Fraser Surrey Docks expansion and the new Pattullo Bridge.

Some historic waterways which were significantly altered in the past exist in the study area. The City has been working to enhance these to improve their fisheries values and wildlife capabilities for many years. Additional measures will be recommended within the ISMP.

Upper Serpentine

See the detailed Upper Serpentine ISMP area here. In late 2013, the City of Surrey began preparing an Integrated Stormwater Management Plan (ISMP) for the Upper Serpentine Watershed in order to protect the health of the watershed. The study area includes both urban and suburban land uses, including one of Surrey’s commercial hubs (Guilford Town Centre) and an important regional park (Tynehead Park). The Upper Serpentine consultant team is actively looking for input into the plan development and has highlighted more information about the Upper Serpentine ISMP process on it's own webpage.

Fleetwood Greenway ISMP

See the detailed Fleetwood Greenway ISMP area. The Fleetwood Greenway ISMP is composed of the East Fleetwood, Greenway and upland portions of the Middle Serpentine. The study area covers approximately 1350 hectares. Watercourses in the catchment are fisheries spawning systems.

Current land uses are urban and suburban. The area may be subject to long term redevelopment into higher density urban land uses.

Boundary Creek

See the detailed Boundary Creek ISMP area here. The Boundary /Shaw Creek ISMP was completed in 2012 as a joint study between the City of Surrey and the Corporation of Delta. Within Surrey, the study area was limited to the Boundary Park catchment. The Boundary Park catchment was developed in the 1980’s and includes a stormwater management pond with various greenbelts constructed to manage runoff. The ISMP found the existing Boundary Park pond to be effective in attenuating peak flows and reducing flow energy. In 2013, recommendations from the ISMP were implemented mainly through drainage servicing requirements for development applications within the study area.

Little Campbell River

See the detailed Little Campbell River ISMP area here. The Little Campbell River Integrated Stormwater Scoping Study was completed in 2011 as a joint study between the City of Surrey and the Township of Langley. This study area includes the McNally Creek watershed. The "Little Campbell River" ISMP process differs from other watershed ISMPs in Surrey.Given the huge area of the Little Campbell River watershed, the Scoping Study delineated the greater watershed into more manageable study areas and prioritized the sub-watersheds for further study based on the extent and timing of future development. To date, there has not been sufficient developmental pressure to warrant initiation of additional studies on these sub-watersheds.

For 2013, implementation of the Scoping Study has been primarily requiring the recommended interim stormwater volume reduction criterion for drainage servicing for the few development applications and inquiries received in the study area. As highlighted in the Scoping Study, water quality is a concern in the Little Campbell River system. On-going through 2013, the City has been working with the Boundary Bay Water Quality team, Arocha Canada, Little Campbell Watershed Society and our Salmon Habitat Restoration Program (SHaRP) team to conduct water quality monitoring, tracing of contaminants and rural residential, agricultural and industrial education campaigns.

Cloverdale-McLellan Creek

See the detailed Cloverdale-McLellan Creek ISMP area here. The Cloverdale-McLellan Creek ISMP was completed in 2011 and includes recommendations for on-site stormwater control targets for single lot redevelopments and new substantial developments outside the East Clayton NCP. In 2013, these recommendations were implemented through drainage servicing requirements for development applications within the study area.

The ISMP work was linked with the lowland study of the area. Integrating the two areas to determine interface issues and floodplain management was essential. The City is investigating the impacts of sea level rise (SLR) and climate change on the Serpentine and Nicomekl floodplains. This ISMP area may be significantly altered by future changes. Update of this ISMP area may advance due to study SLR study results.

Cougar Creek

See the detailed Cougar Creek ISMP area here. The Cougar Creek ISMP was completed in 2009 as a joint project between the City of Surrey and the Corporation of Delta. The recommendations from this study included stormwater volume control of frequent storm events, control of peak flows, and water quality treatment. Previous Master Drainage Plan (MDP) studies have been completed for this catchment prior to the ISMP and most of the MDP recommendations have been implemented or were incorporated into the ISMP. Key infrastructure to manage stormwater in the Surrey portion of the catchment included construction or modifications to various community ponds and fisheries streams both having flow and water quality preservation features. In 2013, recommendations from the ISMP were implemented mainly through drainage servicing requirements for development applications within the study area.

Erickson Creek

See the detailed Erickson Creek ISMP area here. The Erickson Creek ISMP was completed in 2010. In 2013, the recommendations from this ISMP were incorporated into the Stage 1 Land Use Concept for the Grandview Heights Area #4 Neighbourhood Concept Plan. This Stage 1 Concept was approved by Council in October 2013. The Stage 1 Concept includes an engineering report detailing the preliminary servicing required for the proposed land use plan. Due to the limited infiltration capacity of the surficial soils in the area, the Erickson ISMP had recommended a stormwater management strategy consisting of conventional community based detention ponds and Low Impact Development (LID) measures for developments in the Grandview Heights #4 area. This was included in the preliminary servicing of the Stage 1 report.

Hyland Creek

See the detailed Hyland Creek ISMP area here. Hyland Creek ISMP was completed in 2009 and includes recommendations for on-site stormwater control targets and various community detention facilities. In 2013, these recommendations were implemented through drainage servicing requirements for development applications within the study area. Community detention facilities have since been constructed on 146 St (which includes a porous parking lot), Sullivan park at 144 St. (incorporated in the recreation facility) and McLeod pond 141 St. (linked to riparian and biodiversity plan). The design of another large community detention facility in Newton at 70 Ave. has been completed and is awaiting area development to initiate construction.

Lower Bear Creek

See the detailed Lower Bear Creek ISMP area here. Lower Bear Creek ISMP was initiated in 2011 and covers approximately 2,000 hectares. The study area is located between 68 to 100 Avenues and 132 to 156 Streets. Hunt Brook, King, Prince, Enver, Price, Cub, Burke and several unnamed tributaries drain the catchment to the main stem of Bear Creek which in turn is tributary to the Serpentine River. This ISMP is located downstream of the Cruikshank and Grenville and Quibble Creek ISMPs. The catchment area is predominantly urban residential.

Most of the creek systems within this ISMP are active salmon spawning systems. Key aspects of the ISMP are to preserve water quality and riparian areas while meeting the needs of redevelopment. The ISMP provides strategies to mitigate the impacts of future densification.

Old Logging Ditch and Burrow’s Ditch

See the detailed Old Logging and Burrow's Ditch ISMP area here. The Old Logging Ditch and Burrow’s Ditch ISMP was completed in 2011. In 2013, recommendations from the ISMP were implemented through drainage servicing requirements for development applications within the study area. These recommendations included on-site measures such as a minimum layer of topsoil and minimum retention volumes with maximum allowable release rates and minimum required baseflow values plus installation of community facilities and diversion systems.

Quibble Creek

See the detailed Quibble Creek ISMP area here. Initiated in 2011, the Quibble Creek ISMP drains south into Bear Creek and covers an area of approximately 650 hectares. Current land uses are commercial, light industrial, and urban residential. Despite the high level of urbanization, environmental resources including Coho salmon and Cutthroat trout are present throughout the creek system.

Quibble headwaters originate in Surrey City Centre which is undergoing significant redevelopment. The ISMP recommendations are included in the Neighbourhood concept planning underway for the area. Some of the philosophies include turning back the development clock and limiting offsite runoff plus linking onsite stormwater design with landscape architecture. A symposium for developers, planners, engineers, architects and landscapers was held by the City in conjunction with this ISMP to link the professionals and work on solutions to serve multiple needs on development sites in high density settings. Over 70 professionals attended the session.