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 State Facilities 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 work. Modify this

trextemperMechanics

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

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DSF Project No.

31 25 00
-
1


SECTION 31 25 00

1

EROSION CONTROL

2

BASED ON DSF MASTER SPECIFICATION DATED 01/08/07.

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 m
aterial, delete items, or modify what
6

is currently written. The Division of State Facilities expects changes and comments from you.

7


8

This specification section describes erosion control requirements for typical construction projects
9

involving sitework; it

is not intended to provide definitive guidance where the primary scope of the
10

project involves gabions, rip
-
rap, retaining wall structures, or shoreland restoration work. Modify this
11

document to account for project specific conditions. Use “Track Change
s” when editing and providing
12

review submittals.

13


14


15

P A R T I
-

G E N E R A L

16


17

SCOPE

18

The work under this section consists of providing all work, materials, labor, equipment, and supervision necessary to
19

provide and construct erosion control measures nece
ssary to protect property and the environment. Included are the
20

following topics:

21

PART

1
-

GENERAL

22

Scope

23

Related Work

24

Submittals

25

Erosion Control Plan

26

PART

2
-

MATERIALS

27

General

28

Straw Bale Barriers

29

Silt Fence

30

Erosion Mat

31

Staples

32

Riprap

33

Tracking Pad Stone

34

So
il Stabilizers

35

Soil Tackifiers

36

Polymers

37

Anionic Polyacrylimides

38

PART

3
-

EXECUTION

39

General

40

Grading and Earthwork

41

Drainage

42

Tracking Control

43

Maintenance

44


45


46

RELATED WORK

47

Applicable provisions of Division 1 govern work under this Section.

48

AE add/ delete related

sections applicable to this project

49

00 00 00


(Section Title)

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31 10 00
--

Site Clearing

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31 20 00


Earthmoving

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31 22 16.15
--

Roadway Subgrade Preparation

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31 23 16.13


Trenching

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31 23 16.16
--

Structural Excavation for Minor Structures

55

31 23 19


Dewate
ring

56


57

Provide erosion control in accordance with the following references:

58


59



Wisconsin Department of Natural Resources Technical Standards for Construction Site Erosion & Sediment
60

Control (Technical Standards)
:
http://dnr.wi.gov/org/water/wm/nps/stormwater/techstds.htm

61



DSF Project No.

31 25 00
-
2




Erosion Control Product Acceptability List (“PAL”), current version as published by the WDOT available
1

at the following website:

http://www.dot.wisconsin.gov/business/engrserv/pal.htm
.

2


3

Method of measurement and basis of payment sections in any referenced erosion control documents shall not apply
4

to this contract.

5


6

SUBMITTALS

7

The Lead Contractor wi
ll submit the following to the A/E:

8



Construction Site Erosion Control Plan, if required.

The Construction Site Erosion Control Plan for
9

projects that have extensive grading and earthwork will be based on the Contractors approach to the
10

work. Therefore th
e Contractor will need to develop a plan to meet erosion control requirements
11

throughout the course of the construction. The AE will include information for final stabilization in the
12

plans at a minimum.

13



Contractor shall mark
-
up of the Erosion Control Pla
n that is included in these documents showing
14

additional or alternate erosion control measures as needed due to the Contractors means and methods
15

throughout all phases of construction. The Contractor may also be required to submit calculations and
16

backup
information showing the proposed measures meet applicable regulations.

17



Submittals for materials used to implement the erosion control plan.

18


19

Submit shop drawings for the following erosion control features:

20

List erosion control features requiring submittal
s such as inlet protection, in
-
line sediment removal devices. If
21

contractor is responsible for preparation of erosion control plan, also include the erosion control plan and related

22

items as submittals.

23


24

EROSION CONTROL PLAN

25

DSF assumes that the A/E will

complete an erosion control plan and prepare any required NOI for the WPDES
26

permit. Consult the DSF Policy & Procedure Manual for A/E’s for additional information.

27


28

For projects that will or are likely to include 1 or more acres of land disturbing, the
following language should be
29

used:

30

The

A/E has

prepared an erosion control plan included in these documents for the project. The erosion control plan
31

is in accordance with Chapters NR 151, NR 216, and COMM 60, Wis. Adm. Code. The Contractor will provide
32

additional or alternate erosion control measures as needed due to the contractors’ means and methods throughout all
33

phases of construction. After receiving and reviewing the submittal showing the contractors’ additional or alternate
34

erosion control measur
es, the

A/E

will complete and submit a Notice of Intent (NOI) and pay the fee to the
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applicable agency(ies) for coverage under a WPDES Construction Site Stormwater Discharge Permit.

36


37

Contractor shall comply with all the requirements of the erosion contro
l plan, and the requirements of the General
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Permit to Discharge under the Wisconsin Pollutant Discharge Elimination System:

39

ht
tp://www.dnr.state.wi.us/org/water/wm/nps/pdf/stormwater/permits/construction/construction_permit_S06
40

7831
-
3.pdf
)
. If applicable, the project specific WPDES Construction Site Stormwater Discharge Permit for Erosion
41

Control shall supersede the General Perm
it.

42


43

Erosion control and storm water management practices shall be installed and maintained in accordance with the
44

WDNR approved Technical Standards (or equivalent).

45


46

For projects with minimal land disturbance, the AE may not need to prepare an erosion con
trol plan. In this
47

instance, the A/E should include the following language requiring the Contractor to address erosion control.
48

NOTE: COMM 60 requires an erosion control plan for all commercial building projects that include land
49

disturbance regardless of

size. The NOI is only submitted to COMM for projects disturbing 1 or more acres of
50

land.

51

Contractor shall provide all erosion control practices necessary to protect property and the environment. Erosion
52

control and storm water management practices shall
be installed and maintained in accordance with the WDNR
53

approved Technical Standards (or equivalent). The contractor shall prepare an erosion control plan in accordance
54

with Chapters NR 151, NR 216, and COMM 60, Wis. Adm. Code. and submit this plan to the

AE and DSF
55

Construction Representative. The contractor shall update and modify the erosion control plan as needed for
56

phasing of work. A copy of the current erosion control plan shall be maintained at the project site.

57


58

P A R T 2
-

M A T E R I A L
S

59



DSF Project No.

31 25 00
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3


GENERAL

1

Erosion mats, soil stabilizers, and tackifiers shall be listed on the PAL or the Technical Standards.

2


3

When the design or contract includes permanent erosion control or stormwater control features, the contractor may
4

employ these items to control

erosion and stormwater during construction activities. However, these features shall
5

be fully cleaned and restored to the original design providing full function for the intended permanent use prior to
6

acceptance of the work.

7


8

STRAW BALE BARRIERS

9

Rectang
ular bales of hay or straw, tightly bound with twine, not wire. Anchor stakes shall be “T" or "U" steel posts,
10

or hardwood, 2.0 by 2.0 inches nominal. Rebar shall not be used to anchor bales.

11


12

SILT FENCE

13

Fence fabric, support posts and support cord shall
comply with the requirements of the Technical Standards.

14


15

EROSION MAT

16

AE choose material appropriate for specific application. Channel Erosion Mat is different than Non
-
Channel
17

Erosion Mat.

18

Erosion mat shall comply with the requirements of Class
(
AE fill
in the appropriate class based on soil types,
19

duration of project, location and slope)
, Type
(
AE fill in the appropriate type based on soil types, duration of
20

project, location and slope)

erosion mat as defined by the PAL and Technical Standards.

21


22

STAPLE
S

23

Use biodegradable staples in accordance with manufacturer’s recommendations for materials being anchored. Wood
24

and metal staples are not allowed.

25


26

RIPRAP

27

Riprap shall be the class specified and shall conform to Standard Specifications for Highway Constr
uction Section
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606.2.
AE specify riprap material size and underlying geotextile material based on soils and flow rate.

29


30

TRACKING PAD STONE

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The aggregate for tracking pads shall be 3 to 6 inch clear or washed stone. All material shall be retained on a 3
-
inc
h
32

sieve.

33


34

SOIL STABILIZERS


35

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

36


37

SOIL TACKIFIERS

38

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

39


40

POLYMERS

41

Polymers used to settle suspended sediment shall meet the requirements of the WDNR Technical Standards.

42


43

ANIONIC POLYACRYLAMIDE

44

Water soluble anionic polyacrylamide (PAM) used as temporary soil binding agents to reduce erosi
on shall meet the
45

requirements of the WDNR Technical Standards.

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47

P A R T 3
-

E X E C U T I O N

48


49

GENERAL

50


51

Install and maintain erosion control measures as required by the erosion control plan throughout phases of the
52

project. Notify Construction Repres
entative of modifications to the erosion control plan as dictated by Contractor’s
53

means and methods, construction phasing or by differing site conditions.

54


55

Contractor shall provide all erosion control measures necessary to prevent and manage polluted runof
f from the
56

construction site and discharge of sediment onto adjacent property, into storm sewers or waters of the state.

57


58

Perform all work in accordance with manufacturer's instruction where these specifications do not specify a higher
59

requirement.

60



DSF Project No.

31 25 00
-
4



1

GRAD
ING AND EARTHWORK

2

Install temporary or permanent erosion control measures applicable to each phase of grading or land disturbance
3

prior commencing on that phase.

4


5

Clear only those areas designated for the placement of improvements or earthwork before plac
ement of the final
6

cover. Perform stripping of vegetation, grading, excavation, or other land disturbing activities in phases to
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minimizing exposure of bare soil. Do not clear the site of topsoil, trees, and other natural ground covers before the
8

commenc
ement of construction. Retain natural vegetation and protect until the final ground cover is placed.

9


10

Do not stockpile soil within 25 feet of any roadway, parking lot, paved area, or drainage structure or channel.
11

Provide temporary stabilization and erosi
on control measures on disturbed areas and soil stockpiles which will
12

remain for a period of more than 7 consecutive calendar days.

13


14

Remove surplus excavation materials from the site immediately after rough grading.
If disposing of excess soil on
15

state
-
o
wned property, add the following:
The disposal site for the surplus excavation materials shall also be subject
16

to these erosion control requirements.

17


18

DRAINAGE

19

Divert roof drainage and runoff from all undisturbed areas upslope of the site around disturbed

areas. Minimize
20

runoff on exposed soil. Provide measures to remove sediment, and debris.

21


22

Convey
clean or treated runoff

to the nearest adequate
stormwater

facility.

Do not discharge water in a manner that
23

will cause erosion or sedimentation of the si
te or receiving
stormwater
facility.

24


25

Protect storm sewer inlets and catch basins with inlet protection devices meeting the requirements of the WDNR
26

Technical Standards and PAL.

27


28

Provide ditch checks to in swales or ditches to reduce the velocity of water
in the channel. Construct in accordance
29

with WDNR technical standards and PAL.
AE design/detail ditch checks if runoff must be carried in an adjacent
30

ditch.

31


32

Dewatering discharge shall be routed to a sedimentation basin or sedimentation vessel to reduce
the discharge of
33

sediments to meet the requirements of WDNR 151. Do not discharge water in a manner that will cause erosion or
34

sedimentation of the site or receiving stormwater facility.
AE consider including spec section 31 23 19 Dewatering
35

if dewatering

is expected.

36


37

TRACKING CONTROL

38

Construct and maintain Tracking Pads in accordance with the Technical Standards. Provide each entrance to the site
39

with a stone tracking pad at least 50 feet in length with a minimum thickness of 12 inches. The tracking p
ad shall be
40

the full width of the egress point. Inspect tracking pads on a daily basis and replace aggregate when no longer
41

effective.

42


43

If necessary, provide a crushed aggregate paved parking area.

44


45

If applicable, wash water shall be discharged to sedime
ntation basins, sedimentation vessels, or other such control
46

areas. Untreated wash water shall not be routed to storm sewers or waters of the state.

47


48

MAINTENANCE

49

Contractor shall inspect all erosion control measures within 24 hours of the end of each rain
fall event that exceeds
50

0.25”, or daily during periods of prolonged rainfall, or weekly during periods without rainfall. Immediately repair
51

and/or replace any and all damaged, failed, or inadequate erosion control measures.

52


53

Re
-
apply soil stabilizers, t
ackifiers, polymers and anionic polyacrylamides as needed to prevent erosion of exposed
54

soil.

55


56

Maintain records of all inspections and any remedial actions taken on
-
site.

57


58



DSF Project No.

31 25 00
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5


Remove any sediment reaching a public or private roadway, parking lot, sidewalk, or
other pavement. Do not
1

remove tracked sediments by flushing. Completely remove any accumulations not requiring immediate attention at
2

least once daily at the end of the workday.

3


4

Frequently dispose of all waste and unused construction materials in licens
ed solid waste or wastewater facilities.
5

Do not bury, dump, or discharge, any garbage, debris, cleaning wastes, toxic materials, or hazardous materials on the
6

site, on the land surface or in detention basins, or otherwise allow materials to be carried off

the site by runoff onto
7

adjacent lands or into receiving waters or storm sewer systems.

8


9

END OF SECTION

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11