HomeMy WebLinkAboutErosion Control SpecificationsTHIS SHEET TO BE USED
FOR EROSION CONTROL ONLY.
EROSION & SEDIMENT CONTROL DATA
PROJECT INFORMATION
1B Narrative: This project is Windsor Grove, a residential subdivision. Major land
disturbing activities are anticpated to be started and completed according to the following table:
Clearing, grubbing & rough grading - start 6/25/01, complete 7/16/01
Sanitary Sewers - start 7/16/01, complete 7/30/01
Storm Sewers - start 7/30/01, complete 8/13/01
Water main - start 8/13/01, complete 8/27/01
Curbs and pavement - start 8/27/01, complete 9/17/01
Utility installation - start 9/17/01, complete 10/15/01
Finish grade and temp. /perm. Seeding - 10/15/01, complete 11/12/01
1E Landuse of Adjacent Areas: All areas are Agricultural & Residential around site.
TOPOGRAPHIC, DRAINAGE, AND GENERAL SITE FEATURES:
2A Existing Vegetation: The parcel of real estate to be developed as Windsor Grove is an agricultural
field supporting existing vegetation comprised of former agricultural crop residue.
2B There does exist one (1) wetland on the northwest corner of the property at the rear of
lots 1 & 2.
2C There is no 100 -year Floodplain, Floodway fringe or Floodway pertaining to the land parcels
to be developed as Windsor Grove.
2D Refer to Soils Map located on Sheet 1 for soils information.
2F Storm water is collected via an on -site system of inlets, pipes, and swales and conveyed to the
proposed detention pond. The storm water outfalls for this project are as follows:
2H The proposed detention pond facilities as well as the wetland pointed out in 2B are potential areas where
stormwater may enter groundwater; this section's drainage contributes to the proposed pond.
LAND DISTURBING ACTIVITIES:
3A Location and approximate dimensions of all disturbed areas, see Sheet 6 & 7. The areas where existing
vegetative cover will be preserved is shown on sheet 6 & 7.
3B There will be no soil stockpiles and or borrow areas utilized during construction of this phase
of development. All excess soil shall be utilized in fill placement for construction of this project.
EROSION AND SEDIMENT CONTROL MEASURES:
4A Refer to Soil Erosion Control Implementation Schedule shown on this plan sheet.
48 Refer to Soil Erosion Control Maintenance Schedule shown on this plan sheet.
4C Since all water along our sites perimeter is entering our site, it is not
necessary to put in place perimeter sediment control measures.
4E Refer to Soil Erosion Control Plan on sheet 6 & 7.
4K The entire 37.338 acres comprising Windsor Grove shall be considered "Disturbed Area" during the
construction of the initial site development infrastructure and shall be stabilized with the erosion
control practices delineated on this plan sheet and in conjunction with Sheet 6 & 7. Subsequent to the
initial site development construction, each residential lot being built upon shall be considered as a
separate "disturbed area" and each builder shall be required to comply with the builder's erosion
control requirements thereby assuring that each developed lot is provided with a stable, permanent
vegetative cover.
TLT /EROSION
FENCE POST
/al
FENCE POST SHOULD J
BE BURIED --1' BELOW _
GROUND SURFACE,
Recommended Erosion Control Measures
Erosion Control Blanket: Recommend erosion control blankets such as North American Green S150
be installed as a temporary erosion control measure in the bottom of any awale with a concentrated
surface water flow. Refer to erosion control practice number 3.17 .
Straw Bale Drop Inlet Protection: Recommend using straw bale drop inlet protection as per erosion
control practice number 3.54 as a temporary erosion control measure until blankets are installed.
Other drop inlet protection practices may become necessary upon the recommendation of the
engineer or erosion control consultant if a specific need arises during construction.
Topsoil Salvage and Utilization: As per erosion control practice number 3.02. Removal of topsoil
to a depth of six inches (or more If required by the engineer) from all areas to m excavated or filled.
Topsoil should be stored at a location where it will not interfere with construction operations.
Temporary Seeding: Recommend temporary seeding as per erosion control practice number 3.11
if disturbed ground is to be left bare for two months or more. In addition, it is recommended red
clover be added to the seeding mixture at a rate of 10 pounds per acre.
Dormant and Frost Seeding: As per practice number 3.13 attached to be applied If necessary.
Surface Roughening: As per erosion control practice number 3.03, suggest using a bulldozer to
track with cleats perpendicular to the slope of slopes on disturbed ground of six percent or greater
and around the shore of the lakes as a temporary measure until ready for blankets.
Temporary Gravel Construction Entrance /Exit Pad: Recommended as per erosion control practice
number 3.01.
Tree Conservation /Protection: As per erosion control practice number 3.83, the contractor shall, at
the direction of the developer, endeavor to save and protect trees of value and worth which do not
impair construction of improvements as designed.
In the event cut or fill exceeds 0.5 foot over the root area, the developer shall be consulted with
respect of protective measure to be taken, if any, to preserve such trees.
Maintenance Schedule: Maintenance of all erosion control practices should be done as needed on
a weekly basis and after all large storms. A construction supervisor should be assigned the task of
seeing that all practices are installed and maintained according to the design criteria. Maintenance
for each erosion control practice should be conducted per maintenance schedule shown on each
erosion control practice job sheet (attached).
SILT FENCE DETAIL
NOT -TO -SCALE
SEASONAL SOIL PROTECTION CHART
STABILIZATION
PRACTICE JAN. FEB. MAR. APR. MAY JUN. JUL. AUG. SEPT. OCT. NOV. DEC.
PERMANENT
SEEDING A
- - - - - - - - - - - - - - - - - - - - - -
DORMANT
SEEDING - - B -� - - B�
SEEDING -- E--- -- - - - - --
SODDING F**
- - -
MULCHING G
A = KENTUCKY BLUE GRASS 40 lbs. /AC.: CREEPING RED FESCUE 40 lbs. /AC.:
PLUS 2 TONS STRAW MULCH /AC. OR ADD ANNUAL RYEGRASS 20lbs > /AC.
B - KENTUCKY BLUE GRASS 60 lbs. /AC.: CREEPING RED FESCUE 60 lbs. /AC.:
PLUS 2 TONS STRAW MULCH /AC. OR ADD ANNUAL RYEGRASS 30lbs> /AC.
C - SPRING OATS 3 BUSHEL /ACRE
D - WHEAT OR RYE 2 BUSHEL /ACRE
E = ANNUAL RYEGRASS 40 lbs. /AC. (1 lb./1000 sq. ft.)
F = SOD
G - STRAW MULCH 2 TONS /ACRE
IRRIGATION NEEDED DURING JUNE, JULY, AND /OR SEPT.
"* = IRRIGATION NEEDED FOR 2 TO 3 WEEKS AFTER APPLYING SOD
GROUND SURFACE
E MATERIAL SHOULD
BE BURIED 6" BELOW GROUND
SURFACE,
CONTRACTOR SHALL MAINTAIN EXISTING STREETS FROM
DEBRIS OF DIRT,SAND,OR STONE AND SHALL BE
RESPONSIBLE FOR THE CLEANING OF SUCH ITEMS. AFTER
COMPLETION OF THE WORK, THE BUILDERS WILL BE REQUIRED
TO KEEP STREETS FREE OF THE SAME, AT THE CITIES
DISCRETION.
EXISTING VEGETATION:
WHEAT FIELD /WOODED
ULTIMATE RECIEVING WATER:
WHITE RIVER
EROSION CONTROL FOR INDIVIDUAL LOTS
1. CONSTRUCT A GRAVEL DRIVE
2. CONFINE ALL TRAVEL TO THE GRAVEL DRIVE
3. PRESERVE AS MUCH OF THE EXISTING VEGETATION AS POSSIBLE
4. SOME FORM OF BARRIER REQUIRED ALONG REAR YARD SWALE TO PROTECT
THE SWALE , SILT FENCE, STRAW BALE ETC.
5. IF THERE ARE LARGE EXPOSED AREAS ON OR NEAR SLOPES A SILT FENCE
MAY BE REQUIRED
6. AFTER FINAL GRADING, SEED OR SOD THE YARD AS SOON AS POSSIBLE
7. AFTER A YARD IS RE- VEGETATED, REMOVE ALL TEMPORARY EROSION
CONTROL MEASURES
ALL AREAS NOT DENOTING PERMANENT SEEDING
OR FIBER BLANKETS SHALL BE TEMPORARILY
SEEDED.
RECOMMENDED EROSION CONTROL MEASURES
WERE TAKEN FROM CHAPTER 3 AS STATED
IN THE INDIANA HANDBOOK FOR EROSION
CONTROL IN DEVELOPING AREAS. ADDITIONAL
EROSION CONTROL MEASURES MAY BE REQUIRED
BY INSPECTOR AS CONDITIONS WARRANT.
CONSTRUCTION SEQUENCE FOR BUILDING SITE EROSION CONTROL PRACTICFS
DROP INLET REAR YARD
PROTECTION DRAINAGE SWALE
o a f " a o
SUBSOIL
TREE CONSERVATION
SF
SILT FENCING
SILT FENCE
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
PS STOCKPILE
GRAVEL ENTRANCE/
SF
SF
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
CURB INLET
PROTECTION
TEMPORARY DIVERSIONS
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
ALONG WITH ROUGH GRADING
DROP INLET
PROTECTION
WATER AS NEEDED
AFTER ROUGH GRADING
PERMANENT SEEDING
SOIL SALVAGE AND
unuzATioN
AREA TO BE TOP- a
SOILED, SEEDED, a
EROSION CONTROL MATTING
PS
S
a
p$ \
® a
AFTER FINISH GRADING
AND MULCHED
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER EACH INLET IN PLACED
SEED, SOD, & LANDSCAPE
AROUND UNITS FINISHED
WATER AS NEEDED
TOPSOIL
REMOVAL OF STRAW BALES
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS
ARE STABILIZED
REMOVAL OF INLET PROTECTION
`
AFTER ALL AREAS DRAINING TO THESE AREAS
ARE STABILIZED
REMOVAL OF SILT FENCE
STOCKPILE
BY OWNER AT
®
COMPLETION OF
CONSTRUCTION.
!_
HOUSE
\
GARAGE
--"
SIDE YARD
®�
O R j
'�
CONSTRUCTION
ENTRANCE/ EXIT
DRAINAGE SWALE e
1
±
ISF
S
�s
SF a
STREET
SIDE-
WALK VEXISTING CURB AND GUTTER
CURB INLET PROTECTION
I NOTES: 1. EROSION/ SEDIMENT CONTROL MEASURES MUST BE FUNCTIONAL AND BE
MAINTAINED THROUGHOUT CONSTRUCTION.
2. MAINTAIN POSITIVE DRAINAGE AWAY FROM THE STUCTURE.
EROSION CONTROL SCHFDUI F
EROSION CONTROL
PLAN LEGEND
PROPERTY LINE/
DRAINAGE SWALE
�- EXISTING DRAINAGE I
-�� FINISHED DRAINAGE
Fe
TREE CONSERVATION
SF
SILT FENCING
SILT FENCE
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
EXISTING INLET PROTECTION
GRAVEL ENTRANCE/
PRIOR TO CLEARING AND GRADING
EXIT PAD
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
CURB INLET
PROTECTION
TEMPORARY DIVERSIONS
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
ALONG WITH ROUGH GRADING
DROP INLET
PROTECTION
WATER AS NEEDED
AFTER ROUGH GRADING
PERMANENT SEEDING
SOIL SALVAGE AND
unuzATioN
AFTER FINISH GRADING
EROSION CONTROL MATTING
PS
S
PERMANENT SEEDING
SAMPLE EROSION/ SEDIMENT CONTROL PRACTICE PLAN FOR A TYPICAL
ONE- OR TWO- FAMILY DWELLING UNDER CONSTRUCTION
EROSION CONTROL MEASURE MAINTENANCE INSTALLATION SEQUENCE
STONE ENTRANCE
AS NEEDED
PRIOR TO CLEARING AND GRADING
SILT FENCE
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
EXISTING INLET PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TREE PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
PRIOR TO CLEARING AND GRADING
TEMPORARY DIVERSIONS
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
ALONG WITH ROUGH GRADING
TEMPORARY SEEDING
WATER AS NEEDED
AFTER ROUGH GRADING
PERMANENT SEEDING
WATER AS NEEDED
AFTER FINISH GRADING
EROSION CONTROL MATTING
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER FINISH GRADING
STRAW BALES
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER FINISH GRADING
INLET PROTECTION
WEEKLY, AFTER STORM EVENTS AND AS NEEDED
AFTER EACH INLET IN PLACED
SEED, SOD, & LANDSCAPE
AROUND UNITS FINISHED
WATER AS NEEDED
AFTER FINISHED GRADING AROUND FINISHED UNITS
REMOVAL OF STRAW BALES
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS
ARE STABILIZED
REMOVAL OF INLET PROTECTION
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS
ARE STABILIZED
REMOVAL OF SILT FENCE
N/A
AFTER ALL AREAS DRAINING TO THESE AREAS
ARE STABILIZED
Soil Erosion Control Summary
The following is a list in sequence of construction activities to
control soil erosion:
i. Contractor shall install sediment traps and straw bale
filters, as shown.
2. Grade the site (sides of swales, mounds and ponds to be
seeded and mulched immediately upon completion). Temporary
seeding shall be recommended for all swales and disturbed
areas that cannot be final seeded within a time period that
will prevent slope erosion. For temporary seeding, the
contractor shall utilize a fast growing seed of either oats,
annual ryegross, wheat or rye depending on time of year.
Disturbed areas should be kept to a minimum at all times.
3. Contractor shall control mud accumulation on all streets
surrounding project by installing stone surface at all
locations where construction traffic leaves the site. Dust
shall be kept to a minimum by utilizing sprinkling, Calcium
Chloride, Vegetative cover, spray on adhesives or other
approved methods.
4. Maintain all filters and traps during construction to
prevent any blockages from accumulated sediment. Additional
seeding and straw bales may be required during construction
as specified by Engineer or Soil Conservation Service.
Payment for additional straw bales shall be at the
Contractors expense. Payment for additional rip rap (not
shown on plans) and seeding shall be paid for on a unit
basis.
5. Contractor shall Install all sanitary sewers, storm sewers,
subsurface drains, and water mains. Straw bale filters
shall be installed at all storm inlets (including street
Inlets).
Seeding Specifications:
I. Ditch Banks: shall be seeded and covered with North
American Green fiber blanket #S150 and #SC150 (or Equal) or
Hydroseeded with straw mulch. The Contractor shall follow
the manufacturer's recommended guidelines for installation
and staple patterns when installing the fiber blankets.
Seeding rate: 110,# /acre or 2.5 #/1000 S.F.
Seeding mixture: 38% Kent. 31 Fescue
19% Perennial Rye
19% Annual Rye
14% Orchard Grass
10% Kent. Bluegrass
2. 4" of topsoil (minimum) shall be placed prior to
permanent seeding.
3. If grades are established between May 15 and August 10,
a temporary seeding consisting of 40# of Annual Ryegross
shall be planted per acre.
4. If grades are established between October 15 and
December 30, either Rye (grain) or Wheat may be used at the
rate of 2 bushels /Ac. All grains should be mowed prior to
seed maturing.
5. If temporary seeding is established prior to permanent
seeding, the mulch may be eliminated except in "bare areas.
6. If grading occurs during December, January, or February,
use dormant seeding and it should be done within 7 days of
lost land disturbing activity.
NOTE: TO CONTRACTOR
1. Prior to any work commencing contractor shall install stone drive at entrance, and all silt
fences shown on plan.
2. Upon completion of the storm structure from being built the fabric drop inlet protection is
to be installed ON curb inlets and straw bales on yard inlets immediately.
3. Upon completion of the swale construction, contractor shall notify engineer to as- built,
upon review of as -built engineer shall notify contractor to install the erosion control
blankets as soon as possible.
FORMS/22687
ANGLE FIRST STAKE
TOWARD PREVIOUSLY
LAID BALE
WOOD STAKES 15 " -20"
IN GROUND
r
i
I 1 �r I `y
kL
J,
STRAW BALE DAM DETAIL
NOT -TO -SCALE
Gravel bags overlap onto the curb
1. Fill geotextile bags approximately half full
with 2 to 3 inch stone or gravel.
2. At a position downslope of the lot and upslope
of the inlet, lay bags tightly in a row curving
upslope from curb and away from inlet.
3. Overlap bags onto the curb and extend a min-
imum of 3 feet into the street.
4. For additional layers, overlap bags with the
row beneath, and leave a one --bag gap in the
middle of the top row to serve as a spillway.
5. Place bags in an arc around curb inlets that
are in a sump position.
6. Set up safety /traffic barriers to keep vehichles
from hitting bags, causing possible injury.
7. Inspect and repair as needed, cnd remove any
accumulated sediments after every storm.
3 ft (min.)
Gap between bags
acts as a spillway
CURB INLET PROTECTION DETAIL
CHINK GAPS
W /STRAW
� u
SECTION
T
``,111111 /llff /ff��
♦�```, STOEPp��'�i�i
J.............
:oQ Q No.
� i-
19358
o STATE OF '
�,� acs' •... .•• G����.
S %NA �1uc`
_
6'
p31
'
3,
225
GREEN EROSION CONTROL BLANKETS. STAPLE
200
- F
-
A
B
X
x x
1 STAPLE
1 -1/2 STAPLES
PER SQ. YD.
P R SQ. YD.
2 STAPLES
PER SQ. YD.
4% f_X1 r
X x x
X xDx 1
X x x 1
375 STAPLES
PER SQ. YD.
z75
z5o C
B
C C
B C D
A
A B B
2:1 1:1 LOW MM/HIGH
FLOW FLOW
CHASMU. o
AND
SLOPE GRADIENT SHORElJNE
EROSION CONTROL BLANKET
STAPLE PATTERN GUIDE
:III
r
M
U)
Z
0
5
W
o!
Y
o!
a
Q
0
} } \
M U) m W
N O0 ZO o
93
Z
0
O
l
0
W
H
0_
w
U
C14 z
� a
0 Lo °z
W rn
> `-
Of GD
i1
0 X
Z <
Q
J
r`
I CD
(0
I
a0
W r
LI J I
_Z O
O
00
Z I
W
Z
J 0) cn
�} 0
00 a
Z z
O d
V/ Z
Z
O Z
U
LL_ W
U >
nnW 0
1r_In_ (/
V ) r
NO O
v J
Z
O Z
U 3�:
Z
O
O
w
M
of
W
SHEET NO.
OF 28 SHEETS
'10B N0'33697
STAPLE PATTERNS APPLY TO ALL NORTH AMERICAN
225
GREEN EROSION CONTROL BLANKETS. STAPLE
200
PATTERNS WILL VARY DEPENDING UPON SLOPE
LENGTH, SLOPE GRADE, SOIL TYPE AND AVERAGE
175
ANNUAL RAINFALL.
� 150
W 125
gJ 100
75
50
25
Fr.
2 STAPLES
PER SQ. YD.
4% f_X1 r
X x x
X xDx 1
X x x 1
375 STAPLES
PER SQ. YD.
z75
z5o C
B
C C
B C D
A
A B B
2:1 1:1 LOW MM/HIGH
FLOW FLOW
CHASMU. o
AND
SLOPE GRADIENT SHORElJNE
EROSION CONTROL BLANKET
STAPLE PATTERN GUIDE
:III
r
M
U)
Z
0
5
W
o!
Y
o!
a
Q
0
} } \
M U) m W
N O0 ZO o
93
Z
0
O
l
0
W
H
0_
w
U
C14 z
� a
0 Lo °z
W rn
> `-
Of GD
i1
0 X
Z <
Q
J
r`
I CD
(0
I
a0
W r
LI J I
_Z O
O
00
Z I
W
Z
J 0) cn
�} 0
00 a
Z z
O d
V/ Z
Z
O Z
U
LL_ W
U >
nnW 0
1r_In_ (/
V ) r
NO O
v J
Z
O Z
U 3�:
Z
O
O
w
M
of
W
SHEET NO.
OF 28 SHEETS
'10B N0'33697
2:1 1:1 LOW MM/HIGH
FLOW FLOW
CHASMU. o
AND
SLOPE GRADIENT SHORElJNE
EROSION CONTROL BLANKET
STAPLE PATTERN GUIDE
:III
r
M
U)
Z
0
5
W
o!
Y
o!
a
Q
0
} } \
M U) m W
N O0 ZO o
93
Z
0
O
l
0
W
H
0_
w
U
C14 z
� a
0 Lo °z
W rn
> `-
Of GD
i1
0 X
Z <
Q
J
r`
I CD
(0
I
a0
W r
LI J I
_Z O
O
00
Z I
W
Z
J 0) cn
�} 0
00 a
Z z
O d
V/ Z
Z
O Z
U
LL_ W
U >
nnW 0
1r_In_ (/
V ) r
NO O
v J
Z
O Z
U 3�:
Z
O
O
w
M
of
W
SHEET NO.
OF 28 SHEETS
'10B N0'33697
V/ Z
Z
O Z
U
LL_ W
U >
nnW 0
1r_In_ (/
V ) r
NO O
v J
Z
O Z
U 3�:
Z
O
O
w
M
of
W
SHEET NO.
OF 28 SHEETS
'10B N0'33697