Gregg Thompson talk at Plain Green 09

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Oversight and guidance:Oversight and guidance:

Association of MetropolitanAssociation of MetropolitanSoil and Water Conservation DistrictsSoil and Water Conservation DistrictsAnoka Anoka –– Carver Carver –– Dakota Dakota –– HennepinHennepinRamsey Ramsey –– Scott Scott –– WashingtonWashington

Additional program funding (through Contribution Agreement):Additional program funding (through Contribution Agreement):

Gregg ThompsonUrban Conservation Specialist gregg@metroswcd.orggregg@metroswcd.org

U.S. Department of AgricultureU.S. Department of AgricultureNatural Resources Conservation ServiceNatural Resources Conservation Service

Association of MetropolitanAssociation of MetropolitanSoil and Water Conservation DistrictsSoil and Water Conservation DistrictsAnoka Anoka –– Carver Carver –– Dakota Dakota –– Hennepin Hennepin -- Ramsey Ramsey –– Scott Scott –– WashingtonWashington

Provide Provide education and technical assistanceeducation and technical assistance to 7to 7--county county metro area government units and residents in:metro area government units and residents in:

-- erosionerosion--control & watercontrol & water--quality buffersquality buffers

-- urban runoff reductionurban runoff reduction

-- backyard conservationbackyard conservation

-- invasive species controlinvasive species control

-- wildlife habitat developmentwildlife habitat development

Gregg ThompsonUrban Conservation Specialist

F. J. MarschnerThe Original Vegetation of Minnesota info

from Public Land Survey: 1847-1907

Oak Barrens & Openings

Roots of Native Prairie Plantscompared to Kentucky Bluegrass (withwith 22--33”” root depthroot depth)

Conservation Research Institute

66--foot Depthfoot Depth

-- Topsoil StrippedTopsoil Stripped

-- Compacted SubCompacted Sub--SoilSoil

In Graded Landscapes…

02468

101214

Sand Clay

CompactedNon-compacted

CompactedNon-compacted

Pitt, et al

SOIL GETS COMPACTED and will not absorb water.SOIL GETS COMPACTED and will not absorb water.

13 13 in/hrin/hr 9.8 9.8

in/hrin/hr

0.2 0.2 in/hrin/hr

1.4 1.4 in/hrin/hr

Barten, Jahnke, 2002

44””

1717””

44””

1717””

-- Topsoil StrippedTopsoil Stripped

-- Compacted SubCompacted Sub--SoilSoil

SOIL COMPACTION METERSOIL COMPACTION METER

Manufacturer: DickeyManufacturer: Dickey--JohnJohn

Cost: $200 (approximate)Cost: $200 (approximate) AMSWCDAMSWCD

Testing for Soil Compaction:Testing for Soil Compaction:

Testing for Soil Compaction:- Use a Soil Probe

- Low-Tech: Use a wire-flag

- How deep can you push it into the ground?

- How much resistance?

- Is the soil hard, rocky, soft, grainy?

Source:

www.dickey-john.com

How to Make Compacted Soils in 30 minutes or less:

1. Drive on it with a heavy, wheeled loader.

2. Increase effectiveness by doing this when its wet

Rock-Hard “Topsoil” Layer on Sandy Subsoils

By Laying Sod onto Rock-Hard Soils….

…. We Put Turf Grass on “Life Support”to Keep It Alive

Where Does Our Water Come From?Where Does Our Water Come From?

376376’’

963963’’

Source: City of Bloomington

(in Bloomington)(in Bloomington)

2006

Average UsageAverage Usage(non(non--growing season)growing season)

Summer UsageSummer Usage(lawn(lawn--irrigation season)irrigation season)

MIL

LIO

NS

OF

GAL

LON

SM

ILLI

ON

S O

F G

ALLO

NS

Record UsageRecord Usage

Source: City of Bloomington

Altered Watershed Effects

SouthtownSouthtown Runoff Potential in a 1Runoff Potential in a 1”” RainRainRooftops: 2,591,690 gallonsRooftops: 2,591,690 gallons

Parking Lots: 5,455,595 gallonsParking Lots: 5,455,595 gallons

Total: 8,047,285 gallons Total: 8,047,285 gallons

the cruel irony.the cruel irony.

Oh, Parking Lot Engineer, Oh, Parking Lot Engineer, Why have you forsaken me?Why have you forsaken me?””

––FraxinusFraxinus pennsylvanicapennsylvanica

ReRe--thinking How We Deal with Rainwater & Use Plantsthinking How We Deal with Rainwater & Use Plants

Stormdrains

Runoff Flows Past Dysfunctional Landscape

Issues:Issues:

--VolumeVolume of of StormwaterStormwater RunoffRunoff

--QualityQuality of of StormwaterStormwater Runoff Runoff (nutrients, pollutants, hot water (nutrients, pollutants, hot water –– thermal loading)thermal loading)

--Groundwater UsageGroundwater Usage for Irrigation on compacted soilsfor Irrigation on compacted soils

Gunk*

* Gunk= sediment, nutrients, bacteria, organic matter, oil, heavy metals, etc.

What Goes What Goes In HereIn Here……..

…… Gets Dumped in Here Gets Dumped in Here

Franklin Pond

* Gunk= sediment, nutrients, bacteria, organic matter, oil, heavy metals, etc.

More Volume Gets Dumped QuicklyMore Volume Gets Dumped Quickly

Creates Stream Creates Stream ““FlashFlash”” & Lake & Lake ““BounceBounce””

-- Accelerating Soil Erosion Accelerating Soil Erosion --(Sedimentation) (Sedimentation)

Franklin Pond

Piped directly to Wetland, Lake or Stream

StreamStream--Channel Deepening Channel Deepening to Accommodate Volumeto Accommodate Volume

““HeadHead--CutCut””

Stream was 6Stream was 6’’wide x 2wide x 2’’ deep deep –– Now is 30Now is 30’’ wide x 15wide x 15’’ deepdeep

StreamStream--Channel Widening Channel Widening (following deepening)(following deepening)

to Accommodate Volumeto Accommodate Volume

Channel Widening Channel Widening to Accommodate Volumeto Accommodate Volume

prepre--19841984map data Source:

U of M

Street

Stormdrain

Every home has a big impact on Every home has a big impact on stormwaterstormwater runoffrunoff

¼ Acre

Residential

Property

ExampleHouse

Driveway

Lawn

Lawn

+ “Green Concrete” Compacted Lawn

8,390 s.f. “impervious” x 1” rain (if infiltrates first ¼” of rain)

= 3,880 gallons of runoff

Street

Stormdrain

1,000 s.f. driveway x 1” rain= 617 gallons of runoff

In a 1” rainfall

Potential Runoff:

5,422 gallonswith 30” yearly precipitation

Potential Runoff:

162,660 gallons/yr

1,500 s.f. house (& patio) x 1” rain= 925 gallons of runoff

¼ Acre

Residential

Property

Example

Cumulative Effect:

(27) (27) ¼¼--acre Lotsacre Lots

= = 146,394 gallons146,394 gallons(1(1”” rain)rain)

Where can the rain soak in?

StormwaterStormwater Runoff In Our Neighborhoods:Runoff In Our Neighborhoods:

Map of neighborhood Map of neighborhood stormstorm--sewer system sewer system that dumps into creek.that dumps into creek.

Pollutants / Sediments Accumulate Pollutants / Sediments Accumulate between Rains / Meltsbetween Rains / Melts

Pollutants / Sediments Accumulate Pollutants / Sediments Accumulate between Rains / Meltsbetween Rains / Melts

Gunk*

* Gunk= sediment, nutrients, bacteria, organic matter, oil, heavy metals, etc.

What Goes What Goes In HereIn Here……..

…… Gets Dumped in Here Gets Dumped in Here

Franklin Pond

* Gunk= sediment, nutrients, bacteria, organic matter, oil, heavy metals, etc.

Causing ThisCausing This……....

Como Lake

* Gunk= sediment, nutrients, bacteria, organic matter, oil, heavy metals, etc.

One pound of phosphorus = 500 pounds of algae

One pound of phosphorus = 500 pounds of algae

MnDNR

Grass Clippings & Fertilizers can contain high levels of Phosphorus

Grass Clippings & Fertilizers can contain high levels of Phosphorus

Why does a few clippings in the curb matter?

One pound of phosphorus = 500 pounds of algae

One pound of phosphorus = 500 pounds of algae

MnDNR

Decreasing Runoff VolumeDecreasing Runoff Volume –– SmallSmall--Scale ControlsScale Controls

LowLow--Impact Development Impact Development -- Decreasing Amount of Runoff (Volume) - Treating Runoff at the Source (Quality)

• Bioretention / Rain Gardens• Strategic Grading • Site Finger Printing• Conservation • Flatter Wider Swales • Amended Soils• Long Flow Paths• Tree / Shrub Depression• Turf Depression• Landscape Island Storage• Rooftop Detention /Retention • Disconnection*• Parking Lot / Street Storage • Smaller Culverts, Pipes & Inlets

• Alternative Surfaces• Reduce Impervious Surface• Surface Roughness Technology • Rain Barrels / Cisterns / Water Use• Catch Basins / Seepage Pits• Sidewalk Storage• Vegetative Swales, Buffers & Strips• Infiltration Swales & Trenches• Eliminate Curb and Gutter• Shoulder Vegetation • Maximize Sheet flow • Maintain Drainage Patterns• Reforestation• Pollution Prevention

Stormdrains

Runoff Flows Past Dysfunctional Landscape

Issues:Issues:

--VolumeVolume of of StormwaterStormwater RunoffRunoff

--QualityQuality of of StormwaterStormwater Runoff Runoff (nutrients, pollutants, hot water (nutrients, pollutants, hot water –– thermal loading)thermal loading)

--Groundwater UsageGroundwater Usage for Irrigation on compacted soilsfor Irrigation on compacted soils

What is my function?What is my function?

StormwaterStormwater Runoff GardenRunoff Garden

““BioretentionBioretention””

Maryland

Parking Lot Parking Lot Rain GardenRain Garden

RaingardensRaingardens(Reduce Runoff through Stormwater Infiltration)(Reduce Runoff through Stormwater Infiltration)

- Shallow (4” to 12”max. deep) Depressions- Surface should be dry in 48 hours (or less)

- Soil amendments sometimes needed (compost and/or sand)

- Planted with deep-rooting Plants (natives work well)

- Design as a Landscape Feature (“natural”, formal, or in-between)

- Design to Integrate into Landscaping - Select plants to attract Wildlife (for multiple benefits)

Concept - Gregg Thompson, Illustration - Taina Litwak, Animation - Ron Struss

RaingardensRaingardens(Capturing Rainwater / (Capturing Rainwater / StormwaterStormwater ))

Just like a regular landscape planting, but able to absorb rainwater

What is my function?What is my function?

Microsoft Office Microsoft Office (Formerly Great Plains Software)(Formerly Great Plains Software)

Fargo, NDFargo, ND

Parking Lot Runoff Islands Parking Lot Runoff Islands (After Spring Mowing)(After Spring Mowing)

on on ‘‘Red River ClayRed River Clay’’ soilssoils

Microsoft Office Microsoft Office (Formerly Great Plains Software)(Formerly Great Plains Software)

Fargo, NDFargo, ND

Parking Lot Runoff Rain Garden Parking Lot Runoff Rain Garden AbsorbtionAbsorbtion / Infiltration / / Infiltration / EvapoEvapo--transpirationtranspiration

Microsoft Office Microsoft Office (Formerly Great Plains Software)(Formerly Great Plains Software)

Fargo, NDFargo, ND

Infiltration Basins across SiteCommercial Development Requirement

Rice Creek Watershed DistrictSuper Target Super Target LinoLino Lakes, MNLakes, MN

Runoff Reduction PracticesRunoff Reduction PracticesCommercial Development Commercial Development RequirementRequirements s Rice Creek Watershed DistrictRice Creek Watershed District

KohlsKohls Super TargetSuper Target

II--35W35WSuper Target Super Target LinoLino Lakes, MNLakes, MN

Vegetated Filter SwalesVegetated Filter SwalesBioretention CellsBioretention Cells

Super Target Super Target LinoLino Lakes, MNLakes, MN

Minnetonka City Hall Minnetonka City Hall RaingardensRaingardensAbsorbs Parking Lot RunoffAbsorbs Parking Lot Runoff

Designed by: Barr Engineering Designed by: Barr Engineering ((LuetholdLuethold, PE / , PE / RozumalskiRozumalski, RLA), RLA)

Minnetonka City Hall Minnetonka City Hall RaingardensRaingardensAbsorbs Parking Lot RunoffAbsorbs Parking Lot Runoff

Designed by: Barr Engineering Designed by: Barr Engineering ((LuetholdLuethold, PE / , PE / RozumalskiRozumalski, RLA), RLA)

Minnetonka City Hall Minnetonka City Hall RaingardensRaingardensAbsorbs Parking Lot RunoffAbsorbs Parking Lot Runoff

Designed by: Barr Engineering Designed by: Barr Engineering ((LuetholdLuethold, PE / , PE / RozumalskiRozumalski, RLA), RLA)

Burnsville Burnsville RaingardensRaingardensDesigned by: Barr EngineeringDesigned by: Barr EngineeringPhoto by Mike Photo by Mike IsenseeIsensee , Dakota SWCD, Dakota SWCD

StrategicallyStrategically--placedplaced

RaingardensRaingardensType: StreetType: Street--SideSide

Rushmore Drive Runoff Reduction Retrofit ProjectRushmore Drive Runoff Reduction Retrofit ProjectCity of Burnsville City of Burnsville

Planning / Design by: Barr EngineeringPlanning / Design by: Barr Engineering

Raingardens for Neighborhood Runoff:

-- 5.3 acres5.3 acres

-- 25 homes25 homes

-- 17 raingardens17 raingardensBurnsville RaingardensDesigned by: Barr Engineering

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

BEFOREBEFORE

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

EXCAVATING, EXCAVATING, SOIL PREP & SOIL PREP &

GRADINGGRADING

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

PLANTING PLANTING (By Homeowners)(By Homeowners)

Curb Cuts (for Inlet/Outlet)

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

BEFOREBEFORE

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr EngineeringPhoto by Mike Photo by Mike IsenseeIsensee , Dakota SWCD, Dakota SWCD

2 Years Later2 Years Later

City of Burnsville City of Burnsville RaingardensRaingardens (1 of 17)(1 of 17)Rushmore DriveRushmore Drive

Designed by: Barr EngineeringDesigned by: Barr Engineering

Rushmore Drive Runoff Reduction Retrofit ProjectRushmore Drive Runoff Reduction Retrofit ProjectCity of Burnsville City of Burnsville

Planning / Design by: Barr EngineeringPlanning / Design by: Barr Engineering

5.3 acres 5.3 acres –– 25 homes 25 homes –– 17 17 raingardensraingardens

Source: City of Burnsville/Barr Engineering

0.00

0.25

0.50

0.75

0.0000.0250.0500.075

6PM8 Tue Jun 2004

9PM 9 Wed 3AM 6AM 9AM 12PM

Post-Construction Runoff - June 8, 2004

cfs

in

6/8/2004 4:00:00 PM - 6/9/2004 12:00:00 PM

Control - Volume (14371.5 cf) Study - Volume (1164.3 cf) Rainfall (1.44 in)

Post-Construction Runoff1.44 inches in 9 hours

Source:City of BurnsvilleBarr Engineering

Before and After

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

Before and After

Burnsville Raingardens Burnsville Raingardens Designed by: Barr EngineeringDesigned by: Barr Engineering

Burnsville Burnsville RaingardensRaingardensby Barr Engineeringby Barr Engineering

(Fred (Fred RozumalkskiRozumalkski, RLA), RLA)

Winter Infiltration of Winter Infiltration of Burnsville Burnsville RaingardensRaingardens

City of MaplewoodPublic Works – Street Reconstruction Project

Engineering: Engineering: BonestrooBonestroo

Raingardenw/ Native Sunny Perennials

Raingardenw/ Shade Garden Perennials

City of MaplewoodPublic Works – Street Reconstruction Project

Engineering: Engineering: BonestrooBonestroo

City of MaplewoodPublic Works – Street Reconstruction Project

Prior Lake Raingardens Prior Lake Raingardens Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

5239 Brooks Circle SE5239 Brooks Circle SE

5293 Brooks Circle SE5293 Brooks Circle SE

5379 Brooks Circle SE5379 Brooks Circle SE

5405 Brooks Circle SE5405 Brooks Circle SE

5495 Brooks Circle SE5495 Brooks Circle SE

16425 Itasca Ave SE16425 Itasca Ave SE

16447 Itasca Ave SE16447 Itasca Ave SE

16448 Itasca Ave SE16448 Itasca Ave SE

Prior Lake Raingardens Prior Lake Raingardens Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

City of Prior LakePrior Lake Raingardens Prior Lake Raingardens

Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

AMSWCDPrior Lake Raingardens Prior Lake Raingardens

Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

AMSWCDPrior Lake Raingardens Prior Lake Raingardens

Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

Prior Lake Raingardens Prior Lake Raingardens Brooks Circle Street ReconstructionBrooks Circle Street Reconstruction

Green Street Project Green Street Project RaingardensRaingardensPortland, OregonPortland, Oregon

Design by: Kevin Robert Perry, ASLADesign by: Kevin Robert Perry, ASLA

Green Street Project Green Street Project RaingardensRaingardensPortland, OregonPortland, Oregon

Design by: Kevin Robert Perry, ASLADesign by: Kevin Robert Perry, ASLA

Green Street Project Green Street Project RaingardensRaingardensPortland, OregonPortland, Oregon

Design by: Kevin Robert Perry, ASLADesign by: Kevin Robert Perry, ASLA

Green Street Project Green Street Project RaingardensRaingardensPortland, OregonPortland, Oregon

Design by: Kevin Robert Perry, ASLADesign by: Kevin Robert Perry, ASLA

City of SeattlePublic Works – Street Reconstruction Project

Seattle

University of MinnesotaSt. Paul Campus – Watershed District Project

Designed by: Barr Engineering / Fred Rozumalski

University of MinnesotaSt. Paul Campus – Watershed District Project

Designed by: Barr Engineering / Fred Rozumalski

GroGro--Low Low SumacSumac

Black Black ChokeberryChokeberryOrnamental Ornamental

GrassGrass

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

Soil Replacement Soil Replacement AreaArea

OverOver--Excavation Excavation AreaArea

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

Soil Replacement Soil Replacement (Sand & Compost Mix)(Sand & Compost Mix)

Check DamCheck Dam

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

Shredded Wood Shredded Wood MulchMulch

To be planted in Spring 2008, To be planted in Spring 2008, by residentsby residents

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

Planting Day (with neighborhood residents): Planting Day (with neighborhood residents): April 28, 2008April 28, 2008

9371 9371 Ditch Retrofit Project Ditch Retrofit Project

Chanhassen, MNChanhassen, MN

Three Months After Planting: Three Months After Planting: July 2008July 2008

Utility Locates

U More Park 2008

Dakota SWCD

Ag HallAg Hall

Large Parking LotLarge Parking LotInlet Inlet (Concrete Swale)(Concrete Swale)

StormdrainStormdrain

Depression / Mowed Lawn Depression / Mowed Lawn (Purpose?)(Purpose?)

Ag HallAg Hall

Large Parking LotLarge Parking Lot

Inlet Inlet (Concrete Swale)(Concrete Swale)

Riser on Riser on StormdrainStormdrain

Bioretention BasinBioretention Basin

300 gallons in 1” rainfall

Flows across lawn to street’s storm-drain

Plymouth

bermraingarden

Overflow (across lawn)

Inlet (swale)

Digging the Digging the RaingardenRaingardenOver-Dig & Amend Soil (if needed) Plymouth

Leaf Compost (well-aged)

LEAF COMPOST LEAF COMPOST (Well(Well--Aged)Aged)

Reintroduces / Adds Organic Matter to SoilReintroduces / Adds Organic Matter to Soil –– Improves SoilImproves Soil StructureStructure(Decreases Bulk Density, Increases Water Holding Capacity, Incre(Decreases Bulk Density, Increases Water Holding Capacity, Increases Infiltration)ases Infiltration)

SourcesSources::

--Recycling CentersRecycling Centers

--Garden Centers / Landscape ContractorsGarden Centers / Landscape Contractors

AMSWCDAMSWCD

Add Add Organic Matter Organic Matter

to Soilsto Soils

Berm (w/ erosion-control blanket)Depression

(w/ compost)

PlymouthHold the Hold the BermBerm in Placein PlaceUse Erosion-Control Blanket (if needed)

PlymouthPlanting the RaingardenChoose the Right Plant for the Right PlaceChoose the Right Plant for the Right Place

Plant Plant ConsiderationsConsiderations::

--SoilsSoils

--MoistureMoisture

--SunlightSunlight

Year 2Plymouth

Blue Flag IrisBlue Flag Iris

PussytoesPussytoes

MaterialsMaterials::

--0.5 cy Compost 0.5 cy Compost

--0.5 cy Mulch0.5 cy Mulch

--18 Blue Flag Iris 18 Blue Flag Iris (3(3”” pots)pots)

--48 48 PussytoesPussytoes (Plugs)(Plugs)

www.www.BlueThumbBlueThumb.org.org

The Blue Thumb The Blue Thumb Guide to Guide to RaingardensRaingardensis available at...is available at...

Amazon.comAmazon.com (online) (online) BachmanBachman’’ss (in store) (in store) Landscape AlternativesLandscape Alternatives (in store) (in store) Minnesota State Horticultural SocietyMinnesota State Horticultural Society(in store) (in store) Minnesota Landscape ArboretumMinnesota Landscape Arboretum(in store) (in store) Mother Earth GardenMother Earth Garden’’ss (in store) (in store) Prairie RestorationsPrairie Restorations (in store) (in store) Terrace Horticultural BooksTerrace Horticultural Books(online and in store) (online and in store)

Organizations interested in Organizations interested in wholesale or large volume orders:wholesale or large volume orders:WaterdropWaterdrop Innovations LLCInnovations LLC at at raingardens@yahoo.comraingardens@yahoo.com..

Wisconsin DNR & UWEX - Raingarden ‘How-To’ Manual

Wisconsin DNR & UWEX - Raingarden ‘How-To’ Manual

Plant Supplier / Consultant: Plant Supplier / Consultant: Natural Shore TechnologiesNatural Shore Technologies

Street

Stormdrain

325 s.f.= 200 gal

325 s.f. = 200 gal

455 s.f. = 282 gal 140 s.f.

= 86 gal220 s.f. = 136 gal

1,000 s.f. = 618 gal

Raingarden Size Raingarden Size Needed =Needed =

88--15% Size of 15% Size of Drainage AreaDrainage Area

Size ultimately Size ultimately dependent on dependent on soil types & soil types & compaction compaction

presentpresent

POTENTIALRAINGARDEN LOCATIONS

Measure Drainage Areas

WaterWater--Smart LandscapingSmart Landscaping•• Reduce Soil CompactionReduce Soil Compaction (aerate / add organic matter / mulching)(aerate / add organic matter / mulching)•• 33”” Mow HeightMow Height (promotes deeper root growth, reduces moisture loss)(promotes deeper root growth, reduces moisture loss)

•• Turf grass SelectionTurf grass Selection (Drought(Drought--tolerant / deeptolerant / deep--rooted selections)rooted selections)

•• SmarterSmarter--WateringWatering–– Utilize lowUtilize low--volume dripvolume drip--irrigation / targeted / rainirrigation / targeted / rain--sensors, etc.sensors, etc.

•• RainwaterRainwater HarvestingHarvesting–– Rainbarrels / Cisterns & Pumps Rainbarrels / Cisterns & Pumps (to re(to re--use rainwater)use rainwater)

•• Low WaterLow Water--UseUse LandscapesLandscapes–– Utilize DeepUtilize Deep--Rooted PlantsRooted Plants–– Selecting Selecting ‘‘Right Plant for the Right PlaceRight Plant for the Right Place’’

•• RainwaterRainwater--AbsorbingAbsorbing LandscapesLandscapes–– Permeable Hardscapes (patios, driveways, etc.)Permeable Hardscapes (patios, driveways, etc.)–– StrategicallyStrategically--placed tree, shrub and perennial planting areasplaced tree, shrub and perennial planting areas–– VegetatedVegetated--Filter Swales Filter Swales (when moving water)(when moving water)–– RaingardensRaingardens (to really soak it in)(to really soak it in)

Decreasing Runoff VolumeDecreasing Runoff Volume –– SmallSmall--Scale ControlsScale Controls

LowLow--Impact Development Impact Development -- Decreasing Amount of Runoff (Volume) - Treating Runoff at the Source (Quality)

• Bioretention / Rain Gardens• Strategic Grading • Site Finger Printing• Conservation • Flatter Wider Swales • Amended Soils• Long Flow Paths• Tree / Shrub Depression• Turf Depression• Landscape Island Storage• Rooftop Detention /Retention • Disconnection*• Parking Lot / Street Storage • Smaller Culverts, Pipes & Inlets

• Alternative Surfaces• Reduce Impervious Surface• Surface Roughness Technology • Rain Barrels / Cisterns / Water Use• Catch Basins / Seepage Pits• Sidewalk Storage• Vegetative Swales, Buffers & Strips• Infiltration Swales & Trenches• Eliminate Curb and Gutter• Shoulder Vegetation • Maximize Sheet flow • Maintain Drainage Patterns• Reforestation• Pollution Prevention

SOIL COMPACTION METERSOIL COMPACTION METER

Manufacturer: DickeyManufacturer: Dickey--JohnJohn

Cost: $200 (approximate)Cost: $200 (approximate)

Testing for Soil Compaction:- Low-Tech: Use a wire-flag

- How deep can you push it into the ground?

- Is it hard, rocky, soft, grainy?

AMSWCDAMSWCD

Leaf Compost (well-aged)

LEAF COMPOST LEAF COMPOST (Well(Well--Aged)Aged)

Reintroduces / Adds Organic Matter to SoilReintroduces / Adds Organic Matter to Soil –– Improves SoilImproves Soil StructureStructure(Decreases Bulk Density, Increases Water Holding Capacity, Incre(Decreases Bulk Density, Increases Water Holding Capacity, Increases Infiltration)ases Infiltration)

SourcesSources::

--Recycling CentersRecycling Centers

--Garden Centers / Landscape ContractorsGarden Centers / Landscape Contractors

AMSWCDAMSWCD

Add Add Organic Matter Organic Matter

to Soilsto Soils

Johnsonville, IowaJohnsonville, Iowa

Iowa NRCS (photo source)Iowa NRCS (photo source)

Add Organic Matter to Soils Add Organic Matter to Soils (Blower Service)(Blower Service)

Twin Cities Specialty Companies:Twin Cities Specialty Companies:

--Valley Creek Express Blower ServiceValley Creek Express Blower Service

--WindscapesWindscapes

Core-Plug Lawn AeratorAvailable through:

- Lawn Service

- Equipment Rental (DIY)

Optional: “Topdress” with compost

Best Time to Aerate:

1) Sept 1 – 30

2) May 1 – June 15

Reduce Soil Compaction for Healthier Lawns

Important: Locate / Important: Locate / Flag any shallow Flag any shallow buried wires or buried wires or irrigation headsirrigation heads

Core-Plug Lawn Aerator

First Products Aero-vator

Reduce Soil Compaction for Healthier Lawns

Sub-Soil Ripper on “open sites”

Boxer Aero-vator

www.Bobcat.com

Bucket RipperBucket Ripper

www.attachmentsintl.comwww.attachmentsintl.com

www.vailproducts.comwww.vailproducts.com

Frost Frost RipperRipper

““FROST RIPPERSFROST RIPPERS””Leading Edge AttachmentsLeading Edge Attachments

www.leadingedgeattachments.comwww.leadingedgeattachments.com

www.larsonripper.comwww.larsonripper.comBucket RipperBucket Ripper

““FROST RIPPERSFROST RIPPERS””Leading Edge AttachmentsLeading Edge Attachments

www.leadingedgeattachments.comwww.leadingedgeattachments.com

Drawing: Doug Adamson RDG Planning & Design

Source: NRCS-Iowa

When Conveying Runoff:

USACE Chicago District

--ShortShort--mown Lawn Grass mown Lawn Grass will notwill not substantially slow sedimentsubstantially slow sediment--laden laden stormwaterstormwater runoff. runoff.

--Friction is needed to slow water and dropFriction is needed to slow water and drop--out sediments (and attached nutrients). out sediments (and attached nutrients).

--Friction can be achieved with stiffFriction can be achieved with stiff--stemmed vegetation.stemmed vegetation.

ShortShort--mown mown LawnLawn--Grass Grass

in Swalein Swale

USACE Chicago District

--ShortShort--mown Lawn Grass will not substantially slow sedimentmown Lawn Grass will not substantially slow sediment--laden laden stormwaterstormwater runoff. runoff.

--Friction is needed to slow water and dropFriction is needed to slow water and drop--out sediments (and attached nutrients). out sediments (and attached nutrients).

--Friction can be achieved with stiffFriction can be achieved with stiff--stemmed vegetation.stemmed vegetation.

--These plantings can also provide wildlife habitat.These plantings can also provide wildlife habitat.

Vegetated Vegetated SwaleSwale

USACE Chicago District

BioBio--Swale Swale for for stormwaterstormwater conveyance conveyance

with infiltrationwith infiltration

BioBio--Swale Swale for for stormwaterstormwater conveyance conveyance

with infiltrationwith infiltration

USACE Chicago District

Summer 2006

Swale of Swale of Sweet GrassSweet Grass(for (for stormwaterstormwater conveyance)conveyance)

NoNo--Mow Mow Lawn MixLawn MixNative Native

Trees & ShrubsTrees & Shrubs

Prairie Prairie PluggingPlugging Prairie Prairie

SeedingSeeding

Centex Homes Development

Vegetated Bio-Swale Facility

Burnsville, MN

Dakota SWCD

Jay Riggs

Dakota SWCD

Jay Riggs

Centex Homes Development

Vegetated Bio-Swale Facility

Burnsville, MN

Pearlmont Heights Development

Vegetated Bio-Swale Facility

Eagan, MN

Have a wet area often too soggy to mow?Have a wet area often too soggy to mow?

PLANT ITPLANT ITPick the Pick the ‘‘Right Plants for the Right PlaceRight Plants for the Right Place’’

Good Location for MultiGood Location for Multi--Function LandscapingFunction Landscaping

Where Can You Intercept Where Can You Intercept & Utilize Rain?& Utilize Rain?

““If you never walk on itIf you never walk on it……. . then why are you mowing it?then why are you mowing it?””

Grandpa ThompsonGrandpa Thompson

No Mow Lawn Mix (blend of fine fescues)

Prairie Nurserywww.prairienursery.com

Great for Sand or ClayGreat for Sand or Clay

No Mow Lawn Mix (blend of fine fescues)

Native Turfgrass DemonstrationMcCrory Gardens – SDSU / Brookings

AMSWCDAMSWCD

Consider Native Grasses for the Lawn

Prairie Restorations, Inc.Prairie Restorations, Inc.

DroughtDrought--Tolerant LawnTolerant LawnBlue Blue GramaGrama

Consider Native Grasses for the Lawn

Planted 20 years ago on heavy clay soils (now has infiltration rPlanted 20 years ago on heavy clay soils (now has infiltration rates like sand)ates like sand)

Chanhassen ResidenceChanhassen ResidenceBy: Prairie RestorationsBy: Prairie Restorations

ShortShort--grass grass PrairiePrairie

TallTall--grass Prairiegrass Prairie

MultiMulti--Function Landscapes Function Landscapes Screening, Habitat Value, Runoff Reduction, Water ConservationScreening, Habitat Value, Runoff Reduction, Water Conservation

Chanhassen ResidenceChanhassen ResidenceBy: Prairie RestorationsBy: Prairie Restorations

AMSWCDAMSWCDMultiMulti--Function Landscapes Function Landscapes

Screening, Habitat Value, Runoff Reduction, Water ConservationScreening, Habitat Value, Runoff Reduction, Water Conservation

Chanhassen ResidenceChanhassen ResidenceBy: Prairie RestorationsBy: Prairie Restorations

AMSWCDAMSWCDMultiMulti--Function Landscapes Function Landscapes

Screening, Habitat Value, Runoff Reduction, Water ConservationScreening, Habitat Value, Runoff Reduction, Water Conservation

Designed and Installed by: Energyscapes

Low WaterLow Water--Use Landscapes Use Landscapes Water Conservation, Runoff Reduction, Habitat Value Water Conservation, Runoff Reduction, Habitat Value

Harvest Rainwater with Harvest Rainwater with Harvest Rainwater with RainbarrelsRainbarrelsRainbarrels

Mosquito Mosquito –– Proof InletsProof Inlets

55 gallons each55 gallons each

Anoka Conservation DistrictAnoka Conservation District

OverflowOverflow

OutletOutlet

AMSWCDAMSWCD

Inlet Inlet (Atrium Grate)(Atrium Grate)

Inlet FilterInlet Filter

Build Your Own Build Your Own RainbarrelRainbarrel

Harvest Rainwater with Harvest Rainwater with Harvest Rainwater with RainbarrelsRainbarrelsRainbarrels

Street

Stormdrain

325 s.f.

= 200 gallons325 s.f.

= 200 gal

455 s.f.

= 282 gal140 s.f.

= 86 gal220 s.f.

= 136 gal

Where to Put a Where to Put a RainbarrelRainbarrel??Your Smallest Area of Roof

1” Rain Runoff Volumes

(by roof area)

Rainbarrels typically only hold 50 gallons. They will quickly fill in

a rainstorm.

- Is overflow sized large enough to pass through this additional

water?

–When they fill up, where will they

overflow to?Note: 1 cubic foot = 7.4 gallons

Capture Rainwater with

Cisterns

3P Technik Australia www. 3ptechnik.com.au

Capture Rainwater with

Cisterns

AboveAbove--groundground

BuriedBuried

500 500 –– 1,500 gallon Tanks w/ Filters & Pump1,500 gallon Tanks w/ Filters & Pump

Can ReCan Re--use as Lawn Irrigationuse as Lawn Irrigation

Chipotle

Wal-Mart

Water Harvesting with

Cisterns

Source: Target Corporation

CisternCistern30,000 gallon 30,000 gallon

storagestorage

Drawing: Doug Adamson RDG Planning & Design

Source: NRCS-Iowa

Permeable Pavers Permeable Pavers ‘‘Turf BlockTurf Block’’

Detroit Lakes, MN

AMSWCDAMSWCDPermeable SurfacesPermeable Surfaces

Permeable Pavers Permeable Pavers ‘‘Turf BlockTurf Block’’

Detroit Lakes, MN

AMSWCDAMSWCDPermeable SurfacesPermeable Surfaces

PermeablePermeable--joint Pavers joint Pavers ‘‘EcoEco--StoneStone’’ ((BorgertBorgert))

AMSWCDAMSWCD

Dakota County

PermeablePermeable--joint Pavers joint Pavers ‘‘EcoEco--StoneStone’’ ((BorgertBorgert))

PermeablePermeable--joint Pavers joint Pavers ‘‘EcoEco--StoneStone’’

Schmeltz Volkswagen Hwy 36 & White Bear Ave

Maplewood

Ramsey-Washington Metro Watershed District Project

Permeable AsphaltPermeable Asphalt

Ramsey-Wash. Metro W.D.

Little Canada, Mn

Permeable AsphaltPermeable Asphalt

Green RoofGreen Roof

Ramsey-Wash. Metro W.D.

Little Canada, Mn

Permeable ConcretePermeable ConcretePowers Lake Park (2005)

Woodbury, Mn

Permeable ConcretePermeable ConcretePowers Lake Park (2005)

Woodbury, Mn

RESOURCES

http://www.pca.state.mn.us/water/stormwater/stormwater-manual.html

http://efotg.nrcs.usda.gov/treemenuFS.aspx

www.ndwrcdp.orgwww.ndwrcdp.org/publications//publications/

Lessons Learned:Lessons Learned:--Cell Sizing (depth, watershed ratio)Cell Sizing (depth, watershed ratio)

--OffOff--Line Design (preferable to onLine Design (preferable to on--line)line)

--Inlet Design (5Inlet Design (5’’ wide, 12% wide, 12% backslopebackslope, turf filter), turf filter)

--UnderUnder--drain (with valve or removable cap)drain (with valve or removable cap)

--Soil Mixture (Sand & Compost Soil Mixture (Sand & Compost –– no topsoil)no topsoil)

--Installation (avoiding compaction & sediment)Installation (avoiding compaction & sediment)

--Vegetation Selection (deepVegetation Selection (deep--rooted plants)rooted plants)

--Maintenance Issues (removing sediment & weeding)Maintenance Issues (removing sediment & weeding)

www.ndwrcdp.orgwww.ndwrcdp.org/publications//publications/

Download at: http://dnr.wi.gov/runoff/stormwater/technote.htm

http://www.pca.state.mn.us/publications/manuals/stormwaterplants.html http://www.greatrivergreening.org/

Subscribe at:Subscribe at: http://www.stormh2o.com/http://www.stormh2o.com/ Subscribe at:Subscribe at: http://http://www.erosioncontrol.comwww.erosioncontrol.com

http://www.cwp.org/

What if ?What if ?

Oversight and guidance:Oversight and guidance:

Association of MetropolitanAssociation of MetropolitanSoil and Water Conservation DistrictsSoil and Water Conservation DistrictsAnoka Anoka –– Carver Carver –– Dakota Dakota –– HennepinHennepinRamsey Ramsey –– Scott Scott –– WashingtonWashington

Additional program funding (through Contribution Agreement):Additional program funding (through Contribution Agreement):

Gregg ThompsonUrban Conservation Specialist gregg@metroswcd.orggregg@metroswcd.org

U.S. Department of AgricultureU.S. Department of AgricultureNatural Resources Conservation ServiceNatural Resources Conservation Service