This section has been written to cover most (but not all) situations that you will encounter. Depending on the requirements of your specific project, you may have to add material, delete items, or modify what is currently written. The Division of Facilities Development expects changes and comments from you. This specification section describes erosion control requirements for typical construction projects involving sitework; it is not intended to provide definitive guidance where the primary scope of the project involves gabions, rip-rap, retaining wall structures, or shoreland restoration

lyricalwillingMechanics

Feb 22, 2014 (3 years and 6 months ago)

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DFD Project No.

31 25 00
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1


SECTION
31 25 00

1

EROSION CONTROL

2

BASED ON
DFD

MASTER SPECIFICATION DATED
10/1/2012

3


4

This section has been written to cover most (but not all) situations that you will encounter. Depending
5

on the requirements of your specific project, you may have to add material, delete items, or modify what
6

is currently written. The
Division of Facilit
ies Development

expects changes and comments from you.

7


8

This specification section describes erosion control requirements for typical construction
9

projects involving sitework; it is not intended to provide definitive guidance where the primary
10

scope of the

project involves gabions, rip
-
rap, retaining wall structures, or shoreland restoration
11

work. Modify this document to account for project specific conditions. Use “Track Changes”
12

when editing and providing review submittals.

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14


15

P A R T I
-

G E N E R A
L

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17

SCOPE

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The work under this section consists of providing all work, materials, labor, equipment, and supervision necessary to
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provide and construct erosion control measures necessary to protect property and the environment. Included are the
20

following topi
cs:

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PART

1
-

GENERAL

22

Scope

23

Related Work

24

Submittals

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Erosion Control Plan

26

PART

2
-

MATERIALS

27

General

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Straw Bale Barriers

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Silt Fence

30

Erosion Mat

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Staples

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Riprap

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Gabion Stone

34

Soil Stabilizers

35

Soil Tackifiers

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PART

3
-

EXECUTION

37

General

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Grading and Earthwork

39

Drainage

40

Tracking Control

41

Maintenance

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44

RELATED WORK

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Applicable provisions of Division 1 govern work under this Section.

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47

00 00 00


(Section Title)

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00 00 00


(Section Title)

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50

Provide erosion control in accordance with the following references:

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Wisconsin

Construction Site Best Management Practice Handbook, current version as published by the
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WDNR (“Best Management Practice Handbook”)

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Erosion Control Product Acceptability List (“PAL”), current version as published by the WisDOT.

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56

Method of measurement and
basis of payment sections in any referenced erosion control documents shall not apply
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to this contract.

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These documents are available from: State of Wisconsin Document Sales and Distribution

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202 South Thornton Avenue; P.O. Box 7840; Madison, WI 53707; 60
8
-
266
-
3358

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DFD Project No.

31 25 00
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2



1

SUBMITTALS

2

List applicable erosion control features that require submittals. If contractor is responsible for preparation of
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erosion control plan, also include the erosion control plan and related items.

4

Submit shop drawings for the following
erosion control features:

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6

EROSION CONTROL PLAN

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DFD

assumes that the A/E will complete an erosion control plan and, if necessary, apply for a WPDES permit.
8

Consult the
DFD

Policy &
Procedure

Manual for A/E’s for additional information.

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10

For projects

where the A/E has prepared an erosion control plan and permits, the following language should be
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used:

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13

The

A/E has

prepared an erosion control plan for the project. The

A/E

will complete, apply for, and pay for a
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WPDES Stormwater Discharge Permit. The
Contractor will provide the A/E with submittals for materials used to
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implement the erosion control plan, as well as any modifications to the erosion control plan that are necessary due to
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the Contractor’s means and methods of construction.

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18

Contractor
shall comply with all the requirements of the erosion control plan, and if applicable, the WPDES
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Stormwater Discharge Permit for Erosion Control.

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21

For projects with a limited amount of sitework, an erosion control plan may not be necessary. In this instan
ce,
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the A/E should include the following language that requires the Contractor to address erosion control
:

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No erosion control plan has been prepared for this site. Contractor shall provide all erosion control measures
25

necessary to protect property and th
e environment. Apply and pay for erosion control or land disturbing permits as
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required by local municipalities and state agencies.

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28

P A R T 2

-

M A T E R I A L S

29

GENERAL

30

Erosion mats, soil stabilizers, and tackifiers shall be listed on the Product Acce
ptability List for Multi
-
Modal
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Applications (“PAL”) as published by the Wisconsin Department of Transportation.

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33

When the design or contract includes permanent erosion control or stormwater control features, the contractor may
34

employ these items in his con
trol of erosion and stormwater during his construction activities. However, these items
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shall be fully cleaned, restored, and in every way fully functioning for its intended permanent use prior to
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acceptance of the work.

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38

STRAW BALE BARRIERS

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Rectangular b
ales of hay or straw, tightly bound with twine, not wire.

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41

SILT FENCE

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Fence fabric shall comply with the requirements of Standard Specifications for Highway Construction 628.2.6, in 3
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foot tall rolls, with 4’ tall 2" x 2" nominal cross section hardwood pos
ts spaced a maximum of 10’ o.c
.

Silt fence
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shall be Mirafi, Trevira, Amoco, CFM, or approved equal.

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46

EROSION MAT

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Erosion mat specified in this section is intended for short
-
term use i.e. 6 months or less. Alternate material shall
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be specified for instanc
es requiring long term stabilization
.

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A straw/coconut fiber mat encased in a heavy weight UV stabilized top net and light weight photodegradable bottom
50

net. Erosion mat shall comply with the requirements of Class
I;

Type A erosion mat as defined by Standa
rd
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Specifications for Highway Construction and the PAL. Erosion mat shall be American Excelsior, SI Geosolutions,
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Erosion Control Systems, North American Green, or approved equal.

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54

STAPLES

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Use staples conforming to Standard Specifications for Highway
Construction 628.2.3 to anchor erosion mat. Staples
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shall be U
-
shaped of No. 9 gauge or heavier steel wire, or other approved materials, with a width of one to two
57

inches, and a length of not less than 6 inches for firm soils and not less than 12 inches f
or loose soils.

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59

DFD Project No.

31 25 00
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3


RIPRAP

1

Riprap shall be the class specified and shall conform to Standard Specifications for Highway Construction Section
2

606.2.

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4

GABION STONE

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Gabion stone shall be washed stone or rock free of organic material, fines or other debris. Gabi
on stone shall meet
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the following gradation:

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8

Sieve Size

% Passing

7”

㄰N

6”



4”



3”




9

SOIL STABILIZERS


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Soil stabilizers shall be non
-
asphalt
-
based products of the type specified, and meeting the requirements of the PAL.

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SOIL TACKIFIERS

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Soil tackifiers shall be non
-
asphalt
-
based products of the type specified, and meeting the requirements of the PAL.

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15

P A R T 3

-

E X E C U T I O N

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17

GENERAL

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19

Install erosion control measures as required by the erosion control plan and contract documents.

Provide additional
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erosion control measures as dictated by Contractor’s means and methods, or by differing site conditions. Notify
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Construction Representative of additional erosion control features that are provided, but not shown on the plan.

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23

Contract
or shall provide all erosion control measures necessary to protect property and the environment. Include all
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erosion control measures as required by the most stringent of applicable sections of The Best Management Practice
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Handbook or Standard Specificati
ons for Highway Construction.

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Perform all work in accordance with manufacturer's instruction where these specifications do not specify a higher
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requirement.

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30

GRADING AND EARTHWOR
K

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Install all temporary or permanent erosion control measures prior to any o
nsite grading or land disturbances.

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33

Clear only those areas designated for the placement of improvements or earthwork before placement of the final
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cover. Perform stripping of vegetation, grading, excavation, or other land disturbing activities in a logic
al sequence
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and manner which will minimize erosion. If possible, schedule construction for times of the year when erosion
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hazards are minimal.

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38

Do not clear the site of topsoil, trees, and other natural ground covers before the commencement of constructio
n.
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Retain natural vegetation and protect until the final ground cover is placed.

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41

Do not stockpile soil within 25 feet of any roadway, parking lot, paved area, or drainage structure or channel.
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Provide temporary stabilization and control measures (seeding
, mulching, covering, erosion matting, barrier fencing,
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etc.) for the protection of disturbed areas and soil piles which will remain unworried for a period of more than 14
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consecutive calendar days.

45

Remove surplus excavation materials from the site immedia
tely after rough grading. The disposal site for the
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surplus excavation materials shall also be subject to these erosion control requirements.

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DFD Project No.

31 25 00
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4


DRAINAGE

1

Minimize water runoff and retain or detain on
-
site whenever possible so as to promote settling of solids and
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groundwater recharge.

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4

Convey drainage to the nearest adequate public facility.

Do not discharge water in a manner that will cause erosion
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or sed
imentation of the site or receiving facility.

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7

Protect storm sewer inlets and catch basins in accordance with the erosion control plan, if provided. If not specified,
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protect inlets with straw bale barriers, silt fencing, filter basket, gabion stone weepe
rs, or other equivalent methods
9

approved by the A/E which provide the necessary erosion protection.

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11

Divert roof drainage and runoff from all areas upslope of the site around areas to be disturbed or channel them
12

through the site in a manner that will not
cause erosion.

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14

Minimize the pumping of sediments when dewatering. Discharge to a sedimentation basin or sedimentation vessel
15

to reduce the discharge of sediments. Do not discharge water in a manner that will cause erosion or sedimentation
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of the site or

receiving facility.

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18

TRACKING CONTROL

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Provide each entrance to the site with a stone tracking pad. Tracking pad shall be constructed of Gabion Stone or
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Breaker Run.

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22

If necessary, provide a crushed aggregate paved parking area.

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24

If applicable, wash w
ater shall be discharged
to sedimentation

basins, sedimentation vessels, or other such control
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areas.

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27

MAINTENANCE

28

Inspect all erosion control measures within 24 hours of the end of each rainfall event that exceeds
0.25”

or daily
29

during period of prolonged rainfall, or weekly during periods without rainfall. Immediately repair and/or replace
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any and all damaged, failed, or inadequate erosion control measures.

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32

Maintain records of all inspections and any remedial actions
taken.

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34

Maintain stockpile stabilization measures as necessary after rainfall events and heavy winds. Replace tarps, re
-
seed,
35

and reapply mulch,
tackifiers

and stabilizers as necessary.

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37

Remove sediment from stormwater and erosion control structures, basi
ns and vessels as necessary.

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39

Repair or replace damaged inlet protection.

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41

Replace or supplement stone tracking pads with additional stone when they become ineffective.

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43

Remove by any sediment reaching a public or private roadway, parking lot, sidewalk,
or other paved. Do not
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remove tracked sediments by flushing. Completely remove any accumulations not requiring immediate attention at
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least once daily at the end of the workday.

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47

Frequently dispose of all waste and unused construction materials in licens
ed solid waste or wastewater facilities.
48

Do not bury, dump, or discharge, any garbage, debris, cleaning wastes, toxic materials, or hazardous materials on
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the site, on the land surface or in detention basins, or otherwise allow materials to be carried off

the site by runoff
50

onto adjacent lands or into receiving waters or storm sewer systems.

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52

END OF SECTION

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