291919 - HE DWG S1 & S2• BEFORE ANY CLEARING OR GRUBBING OF THE SITE IS INITIATED, AND DURING
EARTHWORK PHASES, SEDIMENT CONTROL FENCE SHALL BE INSTALLED AS SHOWN ON
THE PLAN.
• AT THE CONCLUSION OF EACH DAYS WORK AND AFTER EVERY STORM EVENT,
SEDIMENT CONTROL FENCE AND ANY OTHER EROSION CONTROL MEASURES SHALL BE
INSPECTED FOR FAILURES OR SEDIMENT ACCUMULATION. ANY FAILURE SHALL BE
IMMEDIATELY CORRECTED.
• TEMPORARY RAPID GROWTH COVER CROPS FOR THE SEDIMENT CONTROL AREAS, SUCH
AS ANNUAL RYEGRASS MAY BE USED FOR TEMPORARY SURFACE STABILIZATION DURING
THE CONSTRUC710N PHASES, APPLY AT A RATE OF 35—LBS PER ACRE.
• SEDIMENT SHALL BE REMOVED FROM SEDIMENT TRAPS AND BASINS WHENEVER THEIR
CAPACITY HAS BEEN REDUCED BY 50%
• ALL BARE EARTH AREAS SHALL BE SEEDED AND MULCHED WITHIN 14—DAYS OF
COMPLETION OF WORK IN THE AREA. ONLY AREAS WHICH ACTIVELY UNDER
CONSTRUCTION MAY REMAIN OPEN FOR MORE THAN 5 DAYS.. ONCE CONSTRUCTION IS
COMPLETED IN THESE AREAS, SEED AND MULCH SHALL BE INSTALLED WITHIN 14—DAYS.
• FOR VEGETATED RETENTION AREAS, CUT SLOPES AND SLOPES FOR THE RETENTION
BASINS, TOPSOIL AND INSTALL SEED MIXTURE AT A RATE OF 75—LBS PER ACRE,
APPLY 10-10-10 STARTER FER71LIZER AND MULCH.
• TEMPORARY EROSION CONTROL MEASURES, INCLUDING SEDIMENT CONTROL FENCE
AND/OR MULCH, SHALL BE INSTALLED AND MAINTAINED FOR ANY TEMPORARY SOIL
STOCKPILE AREAS THAT ARE TO BE LEFT FOR MORE THAN 24—HOURS.
• DURING FINAL SITE GRADING, REMOVE ALL ACCUMULATED SEDIMENT, SCARIFY SUBSOILS
AND PERFORM SOIL RESTORATION TECHNIQUES OVER SPECIFIED AREAS.
• FOR GROUND CLEARING ACTIVITIES OCCURRING BETWEEN OCTOBER 15 & APRIL 15, IN
WHICH VEGETATION CANNOT BE ESTABLISHED, EXPOSED EARTHEN AREAS SHALL BE
COVERED WITH EITHER A TARP COVER OR AN EXTRA HEAVY LAYER OF MULCH.
• ANY AREA OF REVEGETATION MUST EXHIBIT A SURVIVAL OF A MINIMUM OF 8= OF
THE VEGETA7ION THROUGHOUT THE YEAR FOLLOWING REVEGETATION. REVEGETATE AS
NEEDED TO MEET THIS REQUIREMENT.
• THE CONTRACTOR SHALL CONDUCT AN INSPECTION OF THE SITE ON A DAILY BASIS TO
COLLECT LITTER AND CONSTRUC7ON DEBRIS AND DISPOSE OF LEGALLY.
• FOR CONSTRUCTION ACTIVITIES INVOLVED WITH ONGOING LAND DISTURBANCES AND
EXPOSURE BETWEEN NOVEMBER 15TH AND APRIL 1ST, WINTER STABILIZATION MEASURES
ARE TO BE IMPLEMENTED, IN ACCORDANCE WITH PAGE Z38 OF THE NEW YORK STATE
STANDARDS AND SPECIFICATIONS FOR EROSION AND SEDIMENT CONTROL (THE BLUE
BOOK).
• THE CONTRACTOR SHALL COMPLY WITH THE NEW YORK STATE STANDARDS AND
SPECIFICATIONS FOR EROSION AND SEDIMENT CONTROL (THE BLUE BOOK).
STANDARD O.
STABILIZATIONWINTER
Definition & Scone
A temporary site specific, enhanced erosion and sediment
control plan to manage runoff and sediment at the site during
construction activities in the winter months to protect off -site
water resources.
Conditions Where Practice Applies
This�standard applies to all construction activities involved
with ongoing land disturbance and exposure between
November 15t" to the following April I"
Design Criteria
1. Prepare a snow management plan with adequate storage
for snow and control of melt water, requiring cleared
snow to be stored in a manner not affecting ongoing
construction activities.
2. Enlarge and stabilize access points to provide for snow
management and stockpiling. Snow management
activities must not destroy or degrade installed erosion
and sediment control practices.
3. A minimum 25 foot buffer shall be maintained from all
perimeter controls such as silt fence. Mark silt fence
with tall stakes that are visible above the snow pack.
4. Edges of disturbed areas that drain to a waterbody within
100 feet will have 2 rows of silt fence, 5 feet apart,
installed on the contour.
5. Drainage structures must be kept open and free of snow
and ice dams. All debris, ice dams, or debris from
plowing operations, that restrict the flow of runoff and
meltwater, shall be removed.
6. Sediment barriers must be installed at all appropriate
November 2016
perimeter and sensitive locations. Silt fence and other
practices requiring earth disturbance must be installed
before the ground freezes.
7. Soil stockpiles must be protected by the use of
established vegetation, anchored straw mulch, rolled
stabilization matting, or other durable covering. A
barrier must be installed at least 15 feet from the toe of
the stockpile to prevent soil migration and to capture
loose soil.
8. In areas where soil disturbance activity has temporarily
or permanently ceased, the application of soil
stabilization measures should be initiated by the end of
the next business day and completed within three (3)
days. Rolled erosion control blankets must be used on
all slopes 3 horizontal to 1 vertical or steeper.
9. If straw mulch alone is used for temporary
stabilization, it shall be applied at double the standard
rate of 2 tons per acre, making the application rate 4
tons per acre. Other manufactured mulches should be
applied at double the manufacturer's recommended
rate.
10. To ensure adequate stabilization of disturbed soil in
advance of a melt event, areas of disturbed soil should
be stabilized at the end of each work day unless:
a. work will resume within 24 hours in the same area
and no precipitation is forecast or;
b. the work is in disturbed areas that collect and
retain runoff, such as open utility trenches,
foundation excavations, or water management
areas.
11. Use stone paths to stabilize access perimeters of
buildings under construction and areas where
construction vehicle traffic is anticipated. Stone paths
should be a minimum 10 feet in width but wider as
necessary to accommodate equipment.
Maintenance
The site shall be inspected frequently to ensure that the
erosion and sediment control plan is performing its winter
stabilization function. If the site will not have earth
disturbing activities ongoing during the "winter season", all
bare exposed soil must be stabilized by established
vegetation, straw or other acceptable mulch, matting, rock,
or other approved material such as rolled erosion control
products. Seeding of areas with mulch cover is preferred
but seeding alone is not acceptable for proper stabilization.
Compliance inspections must be performed and reports
filed properly in accordance with the SWPPP for all sites
under a winter shutdown.
Page 2.38 New York State Standards and Specifications
For Erosion and Sediment Control
10'-0"
0. C. MAX.
SW
8" MIN.
S
A,
� PERSPECTIVE
i
z
g
0
N
FLOW--�
7.7,
SECTION
36" FENCE POST
DRIVEN MINIMUM 16"
INTO GROUND
SILT STOP EMBED IN
GROUND 8" MIN.
SOIL BACKFILL
FENCE POST
SILT STOP EMBED IN
GROUND 8" MIN.
UNDISTURBED GROUND
SEDIMENT CONTROL FENCE DETAIL
NTS
SLOPE LENGTH/FENCE LENGTH M.
SLOPE
STANDARD
REINFORCED
SUPER
<27.
30011500
N/A
N/A
2-107.
12511000
25012000
30012500
10-20%
1001750
15011000
20011000
20-33%
60/500
80/750
100/1000
33-50%
40/250
70/350
1001500
>50%
20/125
30/175
50/250
LAWN AREA
FILTER FABRIC
MIRAFI 140N OR EQUAL
STONE FILLED INFILTRATION
BED WITH 3/4"-3"
WASHED CRUSHED STONE
NATI VE SOILS
STORM TECH 310
HEAVY DUTY CHAMBER
QTY PER PLAN
STANDARD SPECIFICATIONS FOR SILT FENCE
DEFINITION
A TEMPORARY BARRIER OF CE07EX77LE FABRIC INSTALLED ON THE CONTOUR ACROSS A
SLOPE TO IN7ERCEPT SEDIMENT LADEN RUNOFF FROM SMALL DRAINAGE AREAS OF
DISTURBED SOILS.
PURPOSE
TO REDUCE RUNOFF VELOCITY & TO EFFECT DEPOS17ION OF TRANSPORTED SEDIMENT
LOAD.
ADDI r('ATTMI
— MAXIMUM ALLOWABLE SLOPE LENGTHS CONTRIBUTING RUNOFF TO THE FENCE PLACED
ON A SLOPE.
1:2 SLOPE (50%) 25 FT
1:3 SLOPE (339) 50 FT
1:4 SLOPE (2511.) 75 FT
1:5 SLOPE OR LESS 100 FT
— MAXIMUM DRAINAGE AREA FOR OVERLAND FLOW SHALL NOT EXCEED 1/4 ACRE PER
100 FEET OF FENCE WITH MAXIMUM PONDING DEPTH OF 1.5 FEET
— EROSION WILL OCCUR AS SHEET EROSION.
— CONCENTRATED WATER FLOW SHALL NOT BE DIRECTED TO FENCE.
DESIGN CRITERIA
— ALL SILT FENCES SHALL BE PLACED AS CLOSE TO 7HE DISTURBED AREAS AS
POSSIBLE, WITH A MINIMUM OF 10 FEET FROM THE TOE OF A SLOPE. THE AREA
BEYOND THE FENCE MUST BE UNDISTURBED OR STABILIZED.
— SENSITIVE AREAS TO BE PR07ECTED BY SILT FENCE MAYBE NEED TO BE
REINFORCED BY USING HEAVY IMRE FENCING FOR ADDED SUPPORT.
- WHERE THE ENDS OF THE SILT FENCE COME TOGETHER, THE TWO ENDS SHALL BE
OVERLAPPED, ROLLED TOGETHER AND STAPLED TO PREVENT SEDIMENT BYPASS AT
THESE CONNECTIONS.
FABRIC MATERIAL CRITERIA
GRAB TENSILE STRENG774: 90 LBS ASTM D1682
ELONGATION AT FAILURE 507. ASTM D1682
CONSTRUCTION SPECIFICATIONS
1. WOVEN WIRE FENCE TO BE FASTENED SECURELY TO FENCE POSTS W1774 WIRE 71ES
OR STAPLES. POST SHALL BE STEEL EITHER "T" OR "U" TYPE OR HARDWOOD.
2. FILTER CLOTH TO BE FASTENED SECURELY TO WOVEN WIRE FENCE WITH TIES
SPACED EVERY 24" AT TOP AND MID SECTION. FENCE SHALL BE WOVEN WIRE,
6" MAX. MESH OPENING.
3. WHEN TWO SECTIONS OF FILTER CLOTH ADJOIN EACH OTHER THEY SHALL BE
OVER —LAPPED BY 6—INCHES AND FOLDED. FILTER CLOTH SHALL BE EITHER
FILTER X, MIRAFI 100X, STABILINKA T140N OR APPROVED EQUIVALENT.
4. PREFABRICATED UNITS SHALL BE GEOFAB, ENWROFENCE OR APPROVED
EQUIVALENT.
5. MAINTENANCE SHALL BE PERFORMED AS NEEDED AND MATERIAL REMOVED WHEN
"BULGES" DEVELOP IN THE SILT FENCE.
ROOF INFILTRATION TRENCH
SCALE: NTS
12" MIN.
COVER
Call Before You Dig
® Wait The Required Time
® Confirm Utility Response
M Respect The Marks
® Dig With Care
800-962.7962
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