Welcome! Chines Integrated Stormwater Management Plan Open House. Print: Green PMS 361. Blue PMS 2935

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1 Welcome! Chines Integrated Stormwater Management Plan Open House Print: Green PMS 361 Blue PMS 2935

Chines Integrated Stormwater Management Plan The City of Coquitlam, City of Port Moody and Metro Vancouver are developing an Integrated Stormwater Management plan for the area known as the Chines.

2 Chines Integrated Stormwater Management Plan The City of Coquitlam, City of Port Moody and Metro Vancouver are developing an Integrated Stormwater Management plan for the area known as the Chines. The plan will outline measures to balance drainage, environment and land use in order to protect watershed health. The plan considers many aspects of a watershed: the quality and quantity of stormwater flood protection streams, fish and aquatic habitat wildlife slope stability land use and development greenways and recreation Each watershed is unique. By considering each area s special features and developing with care, we can preserve the natural features for everyone to enjoy. Print: Green PMS 361 Blue PMS 2935

Habitat Compensation, Restoration & Enhancement Strategies Proposed Enhancement/ Restoration Site ES-1 ES-2 ES-3 ES-4 ES-5 ES-6 Burrard Inlet ES-7 ES-8 ES-9 ES-10 Watercourse South

regularly). Installation of a weir downstream of culverts to improve fish passage at low flows.

Install LWD/root wads/boulders to improve fish habitat and in-stream complexity upstream of the pedestrian bridge.

Install native plants within riparian corridor, is possible. Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse.

existing weir. Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse.

City of Port Moody Remove debris from culverts and install trash racks (maintain regularly). Install LWD/root wads/boulders to improve fish habitat in pool.

Remove debris from culverts and install trash racks (maintain regularly) at Buller Street. Remove fines within channel downstream Buller Street to improve fish passage.

Mel rose ES-2 ES-8 ES-3 Pigeon Schoolhouse South Tr ibutary Schoolhouse ES-4 Ott ley Cr eek Axford ES-5 ES-6 Hatchley ES-7 East Sundial Goulet Wi l l iams ES-10 ES-9 Correl Dal las Suter

Watercourse Specific Details South Schoolhouse Remove debris from culverts and install trash racks (maintain South Schoolhouse Install native plants within riparian corridor, is

Noble Kyle Remove debris from culverts and install trash racks (maintain regularly), install fencing and/or signage and/ or additional native plants Improve fish passage by installing a

Install LWD/ root wads/boulders to improve fish habitat in pool. Elginhouse Dallas

3 Habitat Compensation, Restoration & Enhancement Strategies Proposed Enhancement/ Restoration Site ES-1 ES-2 ES-3 ES-4 ES-5 ES-6 Burrard Inlet ES-7 ES-8 ES-9 ES-10 Watercourse South Schoolhouse South Schoolhouse South Schoolhouse Noble Kyle Hatchley Goulet Slaughterhouse Elginhouse Dallas Specific Details Remove debris from culverts and install trash racks (maintain regularly). Installation of a weir downstream of culverts to improve fish passage at low flows. Installation of fencing and signage and/or additional native plants along walking path to deter pedestrian traffic into riparian area. Install LWD/root wads/boulders to improve fish habitat and in-stream complexity upstream of the pedestrian bridge. Install LWD/root wads/boulders to improve fish habitat and in-stream complexity upstream of St. Johns, if possible (may be on private property). Install native plants within riparian corridor, is possible. Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Remove debris from culverts and install trash racks (maintain regularly), install fencing and/or signage and/or additional native plan Improve fish passage by installing a fish ladder near existing weir. Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Removal of fines from pool to create deeper fish habitat and install LWD/root wads/boulders within pool. Improve fish passage within weir structure. City of Port Moody Remove debris from culverts and install trash racks (maintain regularly). Installation of fencing and signage and/or additional native plants along walking path to deter pedestrian traffic into riparian area. Install LWD/root wads/boulders to improve fish habitat in pool. Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Remove debris from culverts and install trash racks (maintain regularly) at Buller Street. Remove fines within channel downstream Buller Street to improve fish passage. Install LWD/root wads/boulders to improve fish habitat downstream of Buller Street. Mel rose ES-2 ES-8 ES-3 Pigeon Schoolhouse South Tr ibutary Schoolhouse ES-4 Ott ley Cr eek Axford ES-5 ES-6 Hatchley ES-7 East Sundial Goulet Wi l l iams ES-10 ES-9 Correl Dal las Suter Brook Caledonia Suter Brook Tributary Legend ES-1 Proposed Enhancement Site Stream (open) Stream (piped) Watershed Boundary Municipal Boundary Proposed Enhancement/ Restoration Site Watercourse Specific Details South Schoolhouse Remove debris from culverts and install trash racks (maintain regularly). Installation of a weir downstream of culverts to improve fish passage at low flows. Installation of fencing and signage and/or additional native plants along walking path to deter pedestrian traffic into riparian area. South Schoolhouse Install LWD/root wads/boulders to improve fish habitat and in-stream complexity upstream of the pedestrian bridge. Install LWD/root wads/boulders to improve fish habitat and in-stream complexity upstream of St. Johns, if possible (may be on private property). Install native plants within riparian corridor, is possible. Noble Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Kyle Remove debris from culverts and install trash racks (maintain regularly), install fencing and/or signage and/ or additional native plants Improve fish passage by installing a fish ladder near existing weir. Hatchley Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Goulet Removal of fines from pool to create deeper fish habitat and install LWD/root wads/boulders within pool. Improve fish passage within weir structure. Slaughterhouse Remove debris from culverts and install trash racks (maintain regularly). Installation of fencing and signage and/or additional native plants along walking path to deter pedestrian traffic into riparian area. Install LWD/ root wads/boulders to improve fish habitat in pool. Elginhouse Removal of invasives and installation of restrictive covenant fencing and/or signage to deter dumping of domestic refuse. Dallas Remove debris from culverts and install trash racks (maintain regularly) at Buller Street. Remove fines within channel downstream Buller Street to improve fish passage. Install LWD/root wads/boulders to improve fish habitat downstream of Buller Street.

4 Chines Watershed & Sub-watersheds There are five subwatersheds within the Chines area: Kyle, Schoolhouse, Williams, 4 CHINES WATERSHED AND SUBCATCHMENTS SCOTT Pigeon and Suterbrook. Each sub-watershed contains several creeks City of Port Moody TERRY FOX CREEK discharge to the Burrard Inlet. The Chines includes areas in both Coquitlam and Port Moody. MetroVancouver plays a role in managing watercourses which cross municipal boundaries. The north draining ravines cut into steep slopes. The upland area in Coqutilam forms the headwater areas for the creeks. The main ravine sections and outlet areas are in the City of Port Moody. STONEY CONSULTATION HARMONY SCHOOLHOUSE SCHOOLHOUSE CRK. NOBLE NOBEL CRK. OTTLEY CRK. OTTLEY AXFORD CRK. KYLE CRK. KYLE MACHLEY HATCHLEY CRK. WEST SUNDIAL CRK. EAST SUNDIAL CRK. WEST SUNDIAL EAST SUNDIAL City of Coquitlam GOULET CRK. WILLIAMS CRK. GOULET ELGINHOUSE CRK. ELGIN HOUSE CORREL CRK. DALLAS CRK. CORREL SUTERBROOK CRK. CALEDONIA CRK. CALEDONIA PINNACLE Legend Watercourse Port Moody Road Streams Municipal Boundary SUBCATCHMENTS Kyle St.Drainage Area Pigeon Schoolhouse Sub Suterbrook Williams Subcatchment Coquitlam Major Road AUSTIN K:\gis\ops\Projects\Aleks K\Melony B\Watershed Map Revised Feb 2011 MUNDY 1:15, ,200 Meters

Rainwater Management The traditional approach to drainage planning is to get rid of

This leads to creek erosion, loss of base flows, poor water quality and damage to

Rainwater is a resource that can be managed to keep our watersheds healthy.

infiltrating urban runoff into the ground where it can return to the creeks slowly

Pervious paving is a surface layer that allows rainfall to percolate into an

The surface can be porous asphalt/concrete, pavers, or grid structures.

5 Rainwater Management The traditional approach to drainage planning is to get rid of water as quickly as possible. This leads to creek erosion, loss of base flows, poor water quality and damage to the aquatic environment. Rainwater is a resource that can be managed to keep our watersheds healthy. Rainwater Management measures mimic the natural hydrology of a watershed by infiltrating urban runoff into the ground where it can return to the creeks slowly and evenly. Pervious paving is a surface layer that allows rainfall to percolate into an underlying reservoir where it can be stored and slowly infiltrated to the ground. The surface can be porous asphalt/concrete, pavers, or grid structures. Rain barrels collect rainwater that lands on your roof so that it can be used to water plants, lawns and gardens. A thicker layer of absorbent soil (300mm) for vegetated areas helps absorb rain water. Grading hard surfaces like driveways and sidewalks towards vegetated areas helps collect and infiltrate more rainwater.

6 Rainwater Management Infiltration trenches collect the water from hard surfaces like the road, sidewalk or your roof and use it to recharge groundwater rather than sending it to a storm pipe. Rain gardens are concave landscaped areas where runoff from roofs or hard surfaces is captured, treated and detained before being infiltrated into the soil below. Roadside swales are shallow grassed or vegetated channels that capture, detain and treat road runoff and convey larger flows. Curb cuts direct road runoff to the swale.

Future Land Use The City of Port Moody is updating its Official Community Plan in Burrard Inlet City of Port Moody response to the construction of the Evergreen Line and two rapid transit stations in

It is anticipated that areas of Port Moody Mel rose Barnet Hwy The City of Port Moody is updating its Official Community Plan in response to the construction of the Evergreen Line and two rapid

$Time: 4:54:54 PM l Date: 7/4/2013 Map File: P:\20112817\apps\model build\map_20112817_report_figures_jl_phase4.$

7 Future Land Use The City of Port Moody is updating its Official Community Plan in Burrard Inlet City of Port Moody response to the construction of the Evergreen Line and two rapid transit stations in the city. It is anticipated that areas of Port Moody Mel rose Barnet Hwy The City of Port Moody is updating its Official Community Plan in response to the construction of the Evergreen Line and two rapid transit stations in the city. Murray St Guildford Way will undergo significant redevelopment in the future as the Evergreen Line is built in the lower portion of the watershed. Time: 4:54:54 PM l Date: 7/4/2013 Map File: P:\ \apps\model build\map_ _report_figures_jl_phase4.map - Figure (1:16,000) City of Burnaby Clarke Road 0 1 km :16,000 July 2013 JL MM Burquitlam Station Schoolhouse South Tributary School house Noble Douglas St Ottley Cr eek Clarke St St Johns St Axford Kyle St Gatensburay Como Lake PREPARED FOR: Mary St Hatchley Grant St West Sundial Como Lake Ave Moody St East Hugh St Sundial Williams St Goulet Port Moody Murray St Station Wi l l iams Elginhouse City of Coquitlam St John St Correl Dal las Moray St Pigeon Park Crescent Suter Brook Thermal Dr Ioco Rd Mundy Lake Barnet Hwy Dewdney Caledonia Suter Brook Tr ibutary Ioco Station Trunk Rd CHINES ISMP Legend Future Land Use Map Land Use Commercial Industrial Institutional Low Density Residential Medium Density Residential Parks and Open Space Ravine Road Pavement Potential Future Development Future Evergreen Line Alignment Future Evergreen Line Station Pipe Watercourse Major Roads Railway Municipal Boundary Watershed Boundary

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8 Hydraulic Improvement Strategies City of Port Moody Daylight Kyle in concert with re-development opportunities. Daylight Dallas. Divert high flows down Gatensbury Rd. Me l rose C r ee k Divert high flows down Thermal Dr. Pi ge on C re e k Daylight a section of Schoolhouse Tributary. Su te r B ro o k T r ibu ta ry Caled on ia Sute Correl se C r eek Elgi We s t nh ou C r eek y C r ee k ou s lh ho o Sc Ky l e Cr ee k e C re ek ta r i bu Tr h ut h le Ha tc ek So Cre as Da l l ul et al ek t Sund ial C re di n Su Ea s rd C re e k Go Wi l l iams Ax f o C r eek Ott l ey C r e ek Sc o ho us e o lh r Bro ok Divert high flows down Harbour Dr. y Clark Road Source control in road rights-of-way r eek le C Legend 1. Infrastructure Based Starategies Piped Network Minor Pipe - Upgrade Required Major Pipe - Upgrade Required High Flow Diversion Flow Diversion Time: 9:24:10 AM l Date: 7/5/2013 Map File: P:\ \apps\model build\map_ _report_figures_jl_phase4.map - Figure (1:16,000) This study is exploring options to divert damaging high flows around the creeks, upgrade undersized pipes, and daylight sections of the creeks that are currently piped. Burrard Inlet No b Redevelopment in the Coquitlam and Port Moody areas will result in increases of impervious surfaces (driveways, roads, buildings, larger homes). Rainfall that can no longer infiltrate into the ground becomes runoff that goes to pipes and streams. The Chines ISMP identifies strategies to manage the increases in runoff in order to prevent flooding and erosion while protecting and enhancing stream health. Conceptual Diverted Storm Sewer 2. Rainwater Management Strategies Infiltration / Retention in Blvds 3. Environmental Enhancement Strategies Conceptual Daylighted Restoration Pipe Como Lake Avenue Source control in road rights-of-way Watercourse Watershed Boundary Blue Mountain Street Source control in road rights-of-way PROJECT NO: SCALE: DATE: DESIGNED BY: CHECKED BY: :1,600 July 2013 JL MM Municipal Boundary City of Coquitlam Parks and Open Space Ravine PREPARED FOR: CHINES ISMP Management Strategies Print: Green PMS 361 Blue PMS 2935

Stream Classification Watercourses are Classification/Colour

Watercourses inhabited by salmonids and/or rare or

fish with access enhancement (e.g. removal of culverts).

and source of water, and surrounding vegetation Burrard

endangered fish species, during the overwintering period, or

potentially inhabited during the overwintering period with

City of Port Moody Watercourses that are a significant (as

source of food and nutrients to downstream fish populations.

no reasonable potential for fish presence through flow or

food or nutrients to downstream areas supporting or

Mel rose Pigeon Schoolhouse South Tributary School house

Sundial Gou let Wi l l iams Elginhouse Correl Dal las Suter

Coquitlam Class A Stream Class A(O) Stream Class B Stream

9 Stream Classification Watercourses are Classification/Colour Code Description divided into four Class A Solid red Watercourses inhabited by salmonids and/or rare or endangered fish species, or potentially inhabited by such fish with access enhancement (e.g. removal of culverts). classifications which are based on fish presence, duration and source of water, and surrounding vegetation Burrard Inlet Class A (O) Red dashed Class B Yellow Class C Green Watercourses inhabited by salmonids and/or rare or endangered fish species, during the overwintering period, or potentially inhabited during the overwintering period, or potentially inhabited during the overwintering period with access enhancement. City of Port Moody Watercourses that are a significant (as defined by MELP, 1999) source or potentially significant source of food and nutrients to downstream fish populations. These watersheds are characterized by no fish presence and no reasonable potential for fish presence through flow or access enhancement. Watercourses that provide an insignificant contribution of food or nutrients to downstream areas supporting or potentially supporting fish populations. potential. Mel rose Pigeon Schoolhouse South Tributary School house Noble Ott ley Cr eek Axford Kyle Hatchley West Sundia l East Sundial Gou let Wi l l iams Elginhouse Correl Dal las Suter Brook Caledonia Suter Brook Tr ibutary Legend City of Coquitlam Class A Stream Class A(O) Stream Class B Stream Class C Stream No Value or Unclassified Stream Stream (Piped) Watershed Boundary Municipal Boundary

10 Chines Slope Stability Assessment The primary objective of the slope stability assessment aligns with the City s ongoing effort to improve public safety. 118 properties were selected for preliminary landslide risk assessment based on already available information. Field work focused on slope instability and fill deposit stability indicators (cracked, failing retaining walls, subsided and/or tension cracked soil deposits, pistol butt trees, etc.). Stormwater disposal onto slopes is always a key area of interest. The resulting preliminary assessment ranked the 118 properties into risk categories: Probability of a specific hazardous landslide reaching a downslope Probability that a landslide will reach a house given that a landslide occurs. Low Moderate High house. Probability of occurrence of a specific hazardous landslide over a Low Very Low Low Moderate Moderate Low Moderate High High Moderate High Very High 100 year period. Further study required to estimate risks and determine if any of the sites present unacceptable risk.

cuttings onto the escarpment slopes Obtain independent geotechnical advice

and retaining walls Notify the City if evidence of slope movement is

11 What Can Homeowners Do? Connect roof drains to the storm sewer system Avoid dumping fill or lawn cuttings onto the escarpment slopes Obtain independent geotechnical advice on the stability of their slopes and retaining walls Remove unstable fill and retaining walls Notify the City if evidence of slope movement is detected (settlement, cracking, deformed vegetation, small landslides) Drainage Outlet Failing/Derelict Retaining Walls Pistol Butt Tree

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