1 course highlights –introduction –planning for erosion and sediment control –erosion control...

11

Course HighlightsCourse Highlights– IntroductionIntroduction

– Planning for Erosion and Sediment Planning for Erosion and Sediment Control Control

– Erosion Control BMP ImplementationErosion Control BMP Implementation

– Sediment Control BMP Sediment Control BMP ImplementationImplementation

– Class ExerciseClass Exercise

– Field Demonstration of BMPsField Demonstration of BMPs

22

DefinitionDefinition

Temporary soil stabilization BMP defined – Temporary soil stabilization BMP defined – Interim control measures which are installed Interim control measures which are installed or constructed to control soil erosion and or constructed to control soil erosion and which are not maintained after project which are not maintained after project completioncompletion

Permanent soil stabilization BMP defined – Permanent soil stabilization BMP defined – Measures which are installed or constructed Measures which are installed or constructed to control soil erosion and which are to control soil erosion and which are maintained after project completionmaintained after project completion

Soil Stabilization BMPsSoil Stabilization BMPs

33

Temporary Soil Stabilization BMPs involve preparing the Temporary Soil Stabilization BMPs involve preparing the soil surface and applying one of the approved soil surface and applying one of the approved Department BMPs or combination of BMPs, to disturbed Department BMPs or combination of BMPs, to disturbed soil areassoil areas


44

Temporary Soil Stabilization BMPs are designed to Temporary Soil Stabilization BMPs are designed to eliminate or reduce the erosion of disturbed soil areas, eliminate or reduce the erosion of disturbed soil areas, and provide dust control during the process of and provide dust control during the process of construction and reduce the transport of sediment and construction and reduce the transport of sediment and pollutants by storm waterpollutants by storm water


55

In this section we will discuss the following temporary soil In this section we will discuss the following temporary soil stabilization BMPsstabilization BMPs

– SS-3 Hydraulic MulchSS-3 Hydraulic Mulch

– SS-4 HydroseedingSS-4 Hydroseeding

– SS-5 Soil BindersSS-5 Soil Binders

– SS-6 Straw MulchSS-6 Straw Mulch

– SS-7 Geotextiles, Plastic Covers, & Erosion Control Blankets/MatsSS-7 Geotextiles, Plastic Covers, & Erosion Control Blankets/Mats

– SS-8 Wood MulchingSS-8 Wood Mulching


66

These are referred to as “BMP Alternatives”These are referred to as “BMP Alternatives”

This means that they all have the same general function: This means that they all have the same general function: Binding together the soil particles within or coating the Binding together the soil particles within or coating the surface of a disturbed soil area in order to protect the surface of a disturbed soil area in order to protect the disturbed soil area from the erosive forces of water and disturbed soil area from the erosive forces of water and windwind

SS-3 Hydraulic MulchSS-3 Hydraulic MulchSS-4 HydroseedingSS-4 HydroseedingSS-5 Soil BindersSS-5 Soil BindersSS-6 Straw MulchSS-6 Straw MulchSS-7 Geotextiles, Plastic Covers, & Erosion Control SS-7 Geotextiles, Plastic Covers, & Erosion Control Blankets/MatsBlankets/MatsSS-8 Wood MulchingSS-8 Wood Mulching


77

Hydraulic Mulch SS-3Hydraulic Mulch SS-3What is it?What is it?– A mixture of wood mulch, and water – with or without combinations A mixture of wood mulch, and water – with or without combinations

of stabilizing emulsions, and /or, synthetic fibersof stabilizing emulsions, and /or, synthetic fibers

88

Hydraulic Mulch SS-3Hydraulic Mulch SS-3How is it applied?How is it applied?– It’s mixed into a slurry and applied using hydro-mulching It’s mixed into a slurry and applied using hydro-mulching

equipmentequipment

99

Hydraulic Mulch SS-3Hydraulic Mulch SS-3

There are four types of hydraulic mulches that we are going to focus on?There are four types of hydraulic mulches that we are going to focus on?

– Hydraulic MulchHydraulic Mulch

– Hydraulic MatrixHydraulic Matrix

– Bonded Fiber MatrixBonded Fiber Matrix

– Mechanically Bonded Fiber MatrixMechanically Bonded Fiber Matrix

1010


Hydraulic MulchHydraulic Mulch– Shredded wood fibers, water and/or a stabilizing emulsionShredded wood fibers, water and/or a stabilizing emulsion

– Mixed together and applied with hydro-mulching / hydro seeding equipmentMixed together and applied with hydro-mulching / hydro seeding equipment

– Sprayed onto disturbed soil at a prescribed rate as a liquid slurrySprayed onto disturbed soil at a prescribed rate as a liquid slurry

– 100% biodegradeable100% biodegradeable

1111


Hydraulic MatrixHydraulic Matrix– Shredded wood fiber, water and a stabilizing emulsionShredded wood fiber, water and a stabilizing emulsion




1212


Bonded Fiber Matrix (BFM)Bonded Fiber Matrix (BFM)– A bonded fiber matrix consisting of strands of continuous elongated wood fibers combined with a A bonded fiber matrix consisting of strands of continuous elongated wood fibers combined with a

stabilizing emulsion and waterstabilizing emulsion and water




1313


Mechanically Bonded Fiber Matrix (M-BFM)Mechanically Bonded Fiber Matrix (M-BFM)– A bonded fiber matrix consisting of strands of continuous elongated wood fibers and/or mechanically A bonded fiber matrix consisting of strands of continuous elongated wood fibers and/or mechanically

(interlocking) bonded synthetic fibers combined with a stabilizing emulsion and water(interlocking) bonded synthetic fibers combined with a stabilizing emulsion and water



– 100% biodegradeable and photodegradable100% biodegradeable and photodegradable

1414

Hydraulic Mulch SS-3Hydraulic Mulch SS-3Standards and SpecificationsStandards and SpecificationsSurface preparation Surface preparation – Roughen soil surface with small furrows along the contoursRoughen soil surface with small furrows along the contours

Ripping, Sheepsfoot, Track WalkRipping, Sheepsfoot, Track Walk

– Refer to Standard Specification 20-2.01 and 20-3.02Refer to Standard Specification 20-2.01 and 20-3.02



1515

Hydraulic Mulch SS-3Hydraulic Mulch SS-3How will hydraulic mulches work on your How will hydraulic mulches work on your site?site?

Let’s look at some specificsLet’s look at some specifics

1616


1717


1818


1919


2020

Hydroseeding SS-4Hydroseeding SS-4

What is it?What is it?– The process of vegetating disturbed soil areas by applying a mixture of The process of vegetating disturbed soil areas by applying a mixture of

stabilizing emulsion, seed, fertilizer, and wood fiber to disturbed soilstabilizing emulsion, seed, fertilizer, and wood fiber to disturbed soil

2121

How is it applied?How is it applied?– It’s mixed into a slurry and applied using hydro-mulching It’s mixed into a slurry and applied using hydro-mulching

equipmentequipment


2222

It can also be applied as:It can also be applied as:– A stand alone process – seed and emulsionA stand alone process – seed and emulsion

– Mixed with Hydraulic MulchMixed with Hydraulic Mulch

– Mixed with Soil BindersMixed with Soil Binders

– Applied prior to application of Straw MulchApplied prior to application of Straw Mulch

– Applied prior to application of Rolled Erosion Applied prior to application of Rolled Erosion Control ProductsControl Products

– Applied prior to application of Wood MulchApplied prior to application of Wood Mulch


2323

Standards and SpecificationsStandards and SpecificationsSurface preparation Surface preparation – Roughen soil surface with small furrows along the contoursRoughen soil surface with small furrows along the contours

Ripping, Sheepsfoot, Track WalkRipping, Sheepsfoot, Track Walk

– Refer to Standard Specification 20-2.01 and 20-3.02Refer to Standard Specification 20-2.01 and 20-3.02


2424

Standards and SpecificationsStandards and SpecificationsMaterial and seed mixtureMaterial and seed mixture– Must be approved by DSWC and Landscape ArchitectMust be approved by DSWC and Landscape Architect

– Refer to Standard Specification 20-2.10 and project Special ProvisionsRefer to Standard Specification 20-2.10 and project Special Provisions


2525

How will hydroseeding work on your site?How will hydroseeding work on your site?



2626


2727


2828


2929

What is it?What is it?– An emulsion categorized as plant based (long and An emulsion categorized as plant based (long and

short lived), polymeric emulsion blend (acrylic short lived), polymeric emulsion blend (acrylic polymers), or cementious-based binders that polymers), or cementious-based binders that penetrates the top soil and binding the soil particles penetrates the top soil and binding the soil particles togethertogether

– Tackifiers are a soil binder made up of short lived Tackifiers are a soil binder made up of short lived plant based materials and highly diluted polymeric plant based materials and highly diluted polymeric emulsions, and cementious-based binders – limited emulsions, and cementious-based binders – limited durabilitydurability

– Heavy duty soil binders are made up of long lived Heavy duty soil binders are made up of long lived plant based materials more concentrated polymeric plant based materials more concentrated polymeric emulsions, and cementious-based binders – durable, emulsions, and cementious-based binders – durable, long term stabilizationlong term stabilization

Soil Binders SS-5Soil Binders SS-5

3030

How is it used?How is it used?– As a stand alone stabilizer or as a stabilizing emulsion in hydraulic and straw As a stand alone stabilizer or as a stabilizing emulsion in hydraulic and straw

mulches where it acts as a binding agent for the mulchmulches where it acts as a binding agent for the mulch

How is it applied?How is it applied?– It’s mixed into a slurry and applied using hydro-mulching equipmentIt’s mixed into a slurry and applied using hydro-mulching equipment

– Sprayed from a water truckSprayed from a water truck


3131

Standards and SpecificationsStandards and Specifications– Refer to Standard Specification 20-2.11Refer to Standard Specification 20-2.11

– Must be environmentally benignMust be environmentally benign


3232

How will soil binders work on your site?How will soil binders work on your site?

Let’s take a closer look Let’s take a closer look


3333


3434


3535


3636


3737


3838


3939

Straw Mulch SS-6Straw Mulch SS-6What is it?What is it?– The process of applying a uniform layer of straw over a disturbed soil area The process of applying a uniform layer of straw over a disturbed soil area

to temporarily stabilize the soilto temporarily stabilize the soil

4040

How is it applied?How is it applied?– By hand (labor intensive) or by mechanical blowerBy hand (labor intensive) or by mechanical blower

Straw Mulch SS-6Straw Mulch SS-6

4141

How is it secured to the ground?How is it secured to the ground?– Crimped or punchedCrimped or punched

– Glued with a stabilizing emulsionGlued with a stabilizing emulsion


4242

Standards and SpecificationsStandards and SpecificationsMaterial Material – Must be approved by DSWC or the REMust be approved by DSWC or the RE

– Straw mulch must be derived from barley, rice, or wheatStraw mulch must be derived from barley, rice, or wheat

– Refer to Standard Specification 20-2.06, 20-2.07, and 20-2.11Refer to Standard Specification 20-2.06, 20-2.07, and 20-2.11


4343

Standards and SpecificationsStandards and SpecificationsMaterial Material – Must be approved by DSWC or the REMust be approved by DSWC or the RE

– Straw mulch must be derived from barley, rice, or wheatStraw mulch must be derived from barley, rice, or wheat

– Refer to Standard Specification 20-2.06, 20-2.07, and 20-2.11Refer to Standard Specification 20-2.06, 20-2.07, and 20-2.11


4444

How will Straw mulch work on your site?How will Straw mulch work on your site?



4545


4646


4747


4848

What is it?What is it?– Rolled erosion control BMPs used to protect disturbed soil areas Rolled erosion control BMPs used to protect disturbed soil areas

from erosion by water and windfrom erosion by water and wind

– A high strength BMP that can be used as a stand alone BMP or A high strength BMP that can be used as a stand alone BMP or used in conjunction with re-vegetationused in conjunction with re-vegetation

– Commonly used in channelsCommonly used in channels

Geotextiles, Plastic Covers, & Geotextiles, Plastic Covers, &

Erosion Control Blankets/MatsErosion Control Blankets/Mats SS-7 SS-7

4949

What types are there and how are they used?What types are there and how are they used?– Geotextiles: Woven non-biodegradable polypropylene fabric. Can Geotextiles: Woven non-biodegradable polypropylene fabric. Can

be used for soil stabilization and drainage controlbe used for soil stabilization and drainage control

– Plastic Covers (plastic sheeting): Impervious, non-biodegradable. Plastic Covers (plastic sheeting): Impervious, non-biodegradable. Uses include stockpiles and small areas requiring immediate Uses include stockpiles and small areas requiring immediate attentionattention

– Netting: Plastic, or geotextiles. Plastic is photodegradable Netting: Plastic, or geotextiles. Plastic is photodegradable geosynthetic such as polypropylene, polyethylene, nylon, and/or geosynthetic such as polypropylene, polyethylene, nylon, and/or PVC. Used to secure loose mulchs like straw to allow vegetation PVC. Used to secure loose mulchs like straw to allow vegetation growthgrowth



5050

What types are there and how are they used?What types are there and how are they used?– Erosion Control Blankets: Can be biodegradable or biodegradable Erosion Control Blankets: Can be biodegradable or biodegradable

and photodegradable. Biodegradable blankets typically composed and photodegradable. Biodegradable blankets typically composed of fibers such as jute, straw, coconut or a combo of straw and of fibers such as jute, straw, coconut or a combo of straw and coconut fibers. Biodegradable and photodegradable are made up of coconut fibers. Biodegradable and photodegradable are made up of biodegradable fibers such as excelsior (curled wood fiber), wood, biodegradable fibers such as excelsior (curled wood fiber), wood, jute, straw, coconut or a combo of straw and coconut fibers, and jute, straw, coconut or a combo of straw and coconut fibers, and photodegradable polypropylene or polyethylene. Used as a photodegradable polypropylene or polyethylene. Used as a temporary soil stabilizer.temporary soil stabilizer.



5151

What types are there and how are they used?What types are there and how are they used?– Mats or Turf Reinforcement Mats (TRMs): Can be biodegradable Mats or Turf Reinforcement Mats (TRMs): Can be biodegradable

fiber and photodegradable synthetic netting or interwoven non-fiber and photodegradable synthetic netting or interwoven non-biodegradable geosynthetic material . Constructed to form a three-biodegradable geosynthetic material . Constructed to form a three-dimensional matrix. Used as a permanent soil stabilizer, and for dimensional matrix. Used as a permanent soil stabilizer, and for difficult temporary situations.difficult temporary situations.



5252

How are they applied?How are they applied?– Generally speaking they are rolled out Generally speaking they are rolled out

on the disturbed soil and anchored on the disturbed soil and anchored downdown



5353

Standards and SpecificationsStandards and Specifications– Refer to Standard Specification 20-3.02 for soil surface preparationRefer to Standard Specification 20-3.02 for soil surface preparation

– Selection must be based on site-specific conditionsSelection must be based on site-specific conditions

– Selection must be approved by the RE or DSWCSelection must be approved by the RE or DSWC

– A cert of compliance must be completed per Standard Specification 6-1.07 A cert of compliance must be completed per Standard Specification 6-1.07

– To be effective BMP must maintain contact with the soilTo be effective BMP must maintain contact with the soil

– Refer to Section 2.2.5 starting with page 5 of the temporary soil stabilization guideRefer to Section 2.2.5 starting with page 5 of the temporary soil stabilization guide



5454

Geotextiles, Plastic Covers, & Erosion Control Geotextiles, Plastic Covers, & Erosion Control

Blankets/MatsBlankets/Mats SS-7 SS-7

5555



5656



5757



5858

How will SS-7 work on your site?How will SS-7 work on your site?

Let’s take a closer look Let’s take a closer look



5959



6060



6161



6262

Wood Mulch SS-8Wood Mulch SS-8What is it?What is it?– The process of applying bark, shredded wood, and/or compost (recycled green The process of applying bark, shredded wood, and/or compost (recycled green

material) to bare soil to reduce the potential for erosion from wind and watermaterial) to bare soil to reduce the potential for erosion from wind and water

– Used primarily for landscapingUsed primarily for landscaping

6363

Standards and SpecificationsStandards and Specifications– Landscape Architect should approve use of wood mulchLandscape Architect should approve use of wood mulch

– Refer to Standard Specifications 20-2.01, and 20-3.02 for soil surface preparationRefer to Standard Specifications 20-2.01, and 20-3.02 for soil surface preparation

– Roughen soil surface with small furrows along the contours via ripping, sheepsfoot, Roughen soil surface with small furrows along the contours via ripping, sheepsfoot, track walktrack walk

– If used as a temporary BMP the mulch must be removed prior to re-starting workIf used as a temporary BMP the mulch must be removed prior to re-starting work

Wood Mulch SS-8Wood Mulch SS-8

6464

How will wood mulch work on your site?How will wood mulch work on your site?



6565


6666


6767


1 course highlights –introduction –planning for erosion and sediment control –erosion control...

Documents

hydraulic mulch ss

soil erosion

soil binders ss

soil surface

soil particles

straw mulch ss

hydroseeding ss

wind ss