maintenance of rain gardens, swales, and stormwater planters
DESCRIPTION
Maintenance of Rain Gardens, Swales, and Stormwater Planters . Photo: EMSWCD. OLCA Expo December 1, 2011. Partners. Candace StoughtonEMSWCD Gail ShaloumClackamas WES Rob EmanuelClean Water Services Damon RichardsonPacific Sports Turf Henry StevensPortland BES - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/1.jpg)
Maintenance of Rain Gardens, Swales, and Stormwater Planters
OLCA ExpoDecember 1, 2011
Photo: EMSWCD
![Page 2: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/2.jpg)
Partners
Candace Stoughton EMSWCDGail Shaloum Clackamas WESRob Emanuel Clean Water ServicesDamon Richardson Pacific Sports TurfHenry Stevens Portland BESMaria Cahill Green Girl Land Development
![Page 3: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/3.jpg)
Agenda
• What is stormwater? Why manage it?• Legal issues• Role for landscape contractors• Types of facilities• Maintenance activities
• Vegetation• Pests• Irrigation• Soils/Mulch• Structures• Erosion Control• Spills
• Take home messages
![Page 4: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/4.jpg)
What is Stormwater?
Rainfall and snowmelt that runs off instead of seeping into the ground.
Photo: morgueFile
![Page 5: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/5.jpg)
Sources of stormwater?
Rainfall and snowmelt that runs off instead of seeping into the ground.
Roofs
Parking Lots
Driveways
StreetsEMSWCD EMSWCD
Green Girl Land Development morgueFile
![Page 6: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/6.jpg)
Water cycle
![Page 7: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/7.jpg)
Stormwater
Can cause unnatural floodingEast Portland News
![Page 8: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/8.jpg)
Stormwater
Can degrade streamsPhoto: East Portland News
Photo: morgueFile Johnson Creek Watershed Council
![Page 9: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/9.jpg)
Stormwater
Carries pollutants to waterways
morgueFile
![Page 10: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/10.jpg)
Rain garden-municipal
Photo: EMSWCD
Planted landscape facility designed to collect and absorb runoff and filter out pollutants.
EMSWCD
![Page 11: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/11.jpg)
Swales (aka bioswales)
Long, planted, open channel that carries, slows stormwater and filters out pollutants.
EMSWCD
![Page 12: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/12.jpg)
Rain garden-residential
Planted landscape facility designed to collect and absorb runoff and filter out pollutants.
EMSWCD
![Page 13: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/13.jpg)
Stormwater planter
Structural landscape reservoir designed to filter out pollutants, and in some cases, infiltrate stormwater.
EMSWCD
![Page 14: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/14.jpg)
Stormwater planter/green street
EMSWCD
![Page 15: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/15.jpg)
Function
![Page 16: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/16.jpg)
Anatomy-Infiltration planter
Graphic: Clean Water Services, LIDA Manual
![Page 17: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/17.jpg)
Anatomy-Flow through planter
Graphic: Clean Water Services, LIDA Manual
![Page 18: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/18.jpg)
What is involved?
• Facilities need inspection and maintenance (annually, or more)
• Maintenance includes:• hydrologic and water
quality function• landscape functions• impacts on human health
and safety
EMSWCD
![Page 19: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/19.jpg)
Business opportunity
P• Landscape Architects• Civil Engineers• Landscape Designers• Landscape Contractors• Green industry professionals
Specialized training to design, inspect and maintain
Example:City of Portland• 9000 stormwater facilities• ≈ ¼ are LID facilities
Metro
![Page 20: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/20.jpg)
![Page 21: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/21.jpg)
Maintenance agreements
![Page 22: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/22.jpg)
Inspection log
• Each jurisdiction will have different requirements for inspections, reporting, etc.
![Page 23: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/23.jpg)
General observations
Before you go…
• O & M plan or manual• As-built or design report• Locations of
inlets/outlets, plantings, irrigation, historical problems, previous observations
Clackamas County Water Environment Service
![Page 24: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/24.jpg)
General observations
Once you arrive…• Current and recent weather conditions?• Last rain event? • Inlets and outlets clear? • Banks stable? • Draining as designed or short-cutting? • Pavement in good condition? • Animal damage? • Can you access? • Steep or uneven terrain?• People entering/cutting through the facility?
![Page 25: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/25.jpg)
Contributing area• Trash• Leaves• Oily• Gravel• Sediment• Street or parking lot
sweeping• Fertilizer or pesticide
use• Other activities going
on upstream
![Page 26: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/26.jpg)
Contributing area
Clackamas County Water Environment Services
![Page 27: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/27.jpg)
Contributing area
Clackamas County Water Environment Services Clean Water Services
![Page 28: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/28.jpg)
Safety and access
Access• Need to have access• Flat or evenly sloped• If fenced, trim
fenceline for 3 feet if space allows
• Consider safety before you begin (do not enter flooded facility)
Pacific Sports Turf
![Page 29: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/29.jpg)
Safety and access
Clackamas County Water Environment Services
Metro
morgueFile
![Page 30: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/30.jpg)
Safety and access
35
Personal Protective Equipment (PPE)• Sturdy boots • Gloves, puncture resistant gloves • Ear plugs/earmuffs if operating power equipment• Eye protection when “weed wacking” or mechanical
trimming, handling large branches • Long sleeved shirts and pants • Hard hat if cutting
overhead
Clackamas County Water Environment Services
![Page 31: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/31.jpg)
Safety and access
Other Equipment
• Rakes: to clean out under shrubs where you can’t see
• Grabbers: for trash, sharp objects, or needles • First aid kit
EMSWCDEMSWCD
morgueFile
![Page 32: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/32.jpg)
Safety and accessPublic Safety• Vehicle entrances/exits• Where people walk through, create a path
Clean Water Services OSU Extension
![Page 33: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/33.jpg)
Trash
• Remove trash to prevent clogging and contamination
Metro
![Page 34: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/34.jpg)
O&M tasks related to vegetation
• Functions• Moving• Appearances• Pests• Irrigation
![Page 35: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/35.jpg)
vegetation can be part of the solution……
vegetation can be part of the problem.…..…
![Page 36: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/36.jpg)
Planting plans
Oregon Rain Garden Guide
![Page 37: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/37.jpg)
Aesthetics
OSU Sea Grant
![Page 38: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/38.jpg)
Aesthetics
Clean Water Services
![Page 39: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/39.jpg)
Aesthetics vs function
Clean Water Services
![Page 40: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/40.jpg)
Keeping things moving
morgueFile
![Page 41: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/41.jpg)
Keeping things moving
EMSWCD
![Page 42: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/42.jpg)
Inlets
Clean Water Services
![Page 43: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/43.jpg)
Inlets
Clean Water Services
![Page 44: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/44.jpg)
Shade and competition
Clean Water Services
![Page 45: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/45.jpg)
What would you do?
Clean Water Services
![Page 46: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/46.jpg)
Aesthetics
Clean Water Services
![Page 47: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/47.jpg)
Aesthetics
EMSWCD
![Page 48: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/48.jpg)
Do’s and Don’ts for Plants
• Do strive to keep good plant cover in a WQF• Do pay attention to facility design• Do replace dead plants promptly
• Don’t overly trim grasses and grass-like plants• Don’t let plants block water flow
![Page 49: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/49.jpg)
keeping pests at bay
morgueFile
morgueFile
![Page 50: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/50.jpg)
Principles of IPM
• Start with healthy plants• Monitor and identify pests• Be tolerant of some damage• Choose the least toxic control first• Combine techniques
![Page 51: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/51.jpg)
Pests
Clean Water Services
![Page 52: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/52.jpg)
Pests
Clean Water Services
![Page 53: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/53.jpg)
Pests
Clean Water Services
![Page 54: Maintenance of Rain Gardens, Swales, and Stormwater Planters](https://reader036.vdocuments.mx/reader036/viewer/2022070500/568168a2550346895ddf3914/html5/thumbnails/54.jpg)
Red clover (Trifolium pratense)
Canada thistle (Cirsium arvense) Reed canary grass (Phalaris arundinacea)
Nightshade (Solanum dulcamara)
Pests
Clean Water Services