20191297 Ver 1_C4.01 - EROSION CONTROL-C4.07_20191114

EROSION CONTROL SEQUENCE OF CONSTRUCTION
1. OBTAIN GRADING PERMIT.
2. THIS PROJECT IS DIVIDED INTO THREE (3) STAGES. STAGE 1 EROSION CONTROL - CLEARING & GRUBBING SITE. STAGE 2 EROSION CONTROL - SITE GRADING AND CONSTRUCTION
WHILE PROTECTING ONSITE WETLANDS, STAGE 3 - FINAL GRADING AND CONSTRUCTION (INCLUDING PHASE 2 CONSTRUCTION TO BE PERMITTED AT A LATER DATE)
V9 BEFORE BEGINNING ANY LAND DISTURBING ACTIVITY THE CONTRACTOR SHALL CONTACT JOHNSTON COUNTY UTILITIES, (919-938-4717) TO SETUP A PRE -CONSTRUCTION MEETING.
BEGIN STAGE 1 EROSION CONTROL
STAGE 3 EROSION
EROSION LEGEND:
-LIMITS OF DISTURBANCE
-SILT FENCE
4mwTD4mwTD4mm-TEMPORARY DIVERSION
4mmPD4mmPD4mm -PERMANENT DIVERSION
-ARC INLET PROTECTION
-OUTLET PROTECTION
SOURCES OF INFORMATION:
1.
EXISTING SURVEY OF SITE PROVIDED BY STOKES SURVEYING AND MAPPING PLLC, 1425-105B ROCK QUARRY
ROAD, RALEIGH NC 27610, DATED 11/27/2018.
-CHECK DAM
CALL 48 HOURS BEFORE YOU DIG
2.
EXISTING LIDAR CONTOURS OUTSIDE OF SITE FROM JOHNSTON COUNTY GIS DATED 2017.
3.
PARCEL INFORMATION FROM JOHNSTON COUNTY GIS DATED 2018
1-800-632-4949
4.
EXISTING CONDITIONS FOR ACADEMY POINTE PROVIDED BY ADAMS & HODGE ENGINEERING, PC
-WATTLE
CLAYTON, NC 27520 DATED 5/9/2019.
NORTH CAROLINA ONE -CALL CENTER
5.
BUFFER CALL MADE BY THE STATE. SEE LETTER DATED OCTOBER 18, 2018.
-INLET PROTECTION
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4. INSTALL TEMPORARY GRAVEL CONSTRUCTION ENTRANCES
5. INSTALL ALL SILT FENCING AND WIRE & WASHED STONE OUTLETS IN SILT FENCE AS SHOWN ON THE APPROVED PLAN. CLEAR ONLY AS NECESSARY TO INSTALL THESE DEVICES.
6. BUILD SEDIMENT BASIN # 1 AND #2 AS SHOWN TO BE USED DURING CONSTRUCTION. CUT FROM ROUGH GRADING OF DIPLOMA DRIVE AND TEMPORARY DIVERSION CONSTRUCTION
SHALL BE USED TO FILL THE SIDES OF BASIN #2 AS NEEDED.
7. CLEAR AND INSTALL TEMPORARY DIVERSION DITCHES SHOWN ON STAGE 1 EROSION CONTROL PLANS DISTURBING THE SMALLEST AREA POSSIBLE.
8. EROSION CONTROL MEASURES SHOWN ON PLANS ARE MINIMUM AND MIGHT NOT BE SUFFICIENT TO CONTROL EROSION AND SEDIMENTATION. CONTRACTOR TO INSTALL
ADDITIONAL MEASURES AS GRADING CONDITIONS CHANGE TO ROUTE STORMWATER TOWARDS BASIN AND INLETS. CONTACT ENGINEER AS NEEDED FOR FURTHER DESIGN AND
INSTRUCTION.
9. GROUNDCOVER MUST BE APPLIED TO DISTURBED AREAS ACCORDING TO THE "GROUND STABILIZATION" TABLE ON SHEET D1.03 (PER THE NEW STORMWATER RULES). STABILIZE
;RTE AS AREAS ARE BROUGHT UP TO GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC.
10. CALL JOHNSTON COUNTY UTILITIES FOR ON SITE INSPECTION AND CERTIFICATE OF COMPLIANCE. (SEE NOTE 3.)
BEGIN STAGE 2 EROSION CONTROL ON EAST SIDE OF ROSEMARY STREET.
11. INSTALL STORM PIPES ST-73 AND ST-74 PER CONSTRUCTION PLANS. CONTRACTOR SHALL VERIFY THE TEMPORARY DIVERSION FEEDS INTO THE SEDIMENT BASIN THROUGH THE
NEWLY INSTALLED STORM PIPES.
12. INSTALL STORM PIPES ST-52, ST-54, ST-55, ST-58 THROUGH ST-66, AND ST-71 THROUGH ST-72 ALONG WITH ASSOCIATED BOXES AND INLET PROTECTION.
13. INSTALL STORM PIPES ST-33 THROUGH ST-35, ST-50 AND ST-51 ALONG WITH ASSOCIATED BOXES AND INLET PROTECTION.
14. CALL JOHNSTON COUNTY UTILITIES FOR ON SITE INSPECTION AND CERTIFICATE OF COMPLIANCE. (SEE NOTE 3.)
BEGIN STAGE 2 EROSION CONTROL ON WEST SIDE OF ROSEMARY STREET.
15. BEGIN TO CLEAR AND GRUB SITE. DURING THE INITIAL CLEARING AND ROUGH GRADING STAGE, ENSURE THAT STORMWATER IS ROUTED TO EXISTING BASINS UNTIL THE PROPOSED
DRAINAGE PATTERNS ARE ESTABLISHED. MAINTAIN DEVICES AS NEEDED.
16. INSTALL TEMPORARY DIVERSION DITCHES WEST OF ROSEMARY STREET AS SHOWN ON PLANS FOR STAGE 2 TO DRAIN TO CB-33 AND CB-35.
17. ONCE STORMWATER CONVEYANCE SYSTEM HAS BEEN INSTALLED FOLLOWING STEPS 11, 12, AND 13 AS NOTED ABOVE CARRYING STORMWATER TO BASIN #2, BASIN #1 MAYBE
REMOVED AS APPROVED BY ENGINEER AND JOHNSTON COUNTY UTILITIES.
MAKE SURE WETLANDS ARE PROTECTED UNTIL APPROPRIATE 4011404 PERMITS HAVE BEEN RECEIVED AND JOHNSTON COUNTY UTILITIES HAVE APPROVED STAGE 3
CONSTRUCTION ON THE WEST SIDE OF ROSEMARY STREET.
18. CALL JOHNSTON COUNTY UTILITIES FOR ON SITE INSPECTION AND CERTIFICATE OF COMPLIANCE. (SEE NOTE 3.)
19. EROSION CONTROL MEASURES SHOWN ON PLANS ARE MINIMUM AND MIGHT NOT BE SUFFICIENT TO CONTROL EROSION AND SEDIMENTATION. CONTRACTOR TO INSTALL
ADDITIONAL MEASURES AS GRADING CONDITIONS CHANGE TO ROUTE STORMWATER TOWARDS BASIN AND INLETS. CONTACT ENGINEER AS NEEDED FOR FURTHER DESIGN AND
INSTRUCTION.
20. GROUNDCOVER MUST BE APPLIED TO DISTURBED AREAS ACCORDING TO THE "GROUND STABILIZATION" TABLE ON SHEET D1.03 (PER THE NEW STORMWATER RULES). STABILIZE
SITE AS AREAS ARE BROUGHT UP TO GRADE WITH VEGETATION, PAVING, DITCH LININGS, ETC.
21. AS SITE GRADE IS RAISED IN THE NORTHEAST CORNER, CONTRACTOR SHALL USE TEMPORARY DIVERSION AND SLOPE PROTECTION PIPE TO PROTECT EMBANKMENT. ALL
EMBANKMENTS/SLOPES SHALL BE MATTED, SEEDED, AND MULCHED IMMEDIATELY.
22. WHEN MATERIAL IN CONCRETE WASHOUT REACHES APPROXIMATE HEIGHT OF THE HAY BALES, CONTRACTOR SHALL REMOVE MATERIAL FROM CONCRETE WASHOUT AND DISPOSE
OF IT AT AN APPROVED LANDFILL. CONCRETE WASHOUT SHALL THEN BE RESTORED TO CONDITIONS PER DETAIL.
23. CONTRACTOR SHALL USE THE SELF -INSPECTION PROGRAM AS DETAILED ON SHEET D1.04 ON A WEEKLY BASIS.
24. WHEN CONSTRUCTION IS COMPLETE AND ALL AREAS ARE PERMANENTLY STABILIZED COMPLETELY WITH THICK VEGETATION, CALL FOR INSPECTION (SEE NOTE #3 ABOVE).
25. IF SITE IS APPROVED, REMOVE SILT FENCING, REMOVE TEMPORARY DIVERSIONS, THEN SEED & MULCH OR PAVE ANY RESULTING BARE AREAS. ALL REMAINING PERMANENT
EROSION CONTROL DEVICES SUCH AS VELOCITY DISSIPATORS SHOULD BE INSTALLED NOW. REMOVE SILT, BAFFLES, SKIMMER THEN SHAPE & SIZE PONDS TO APPROVED DIMENSIONS.
INSTALL OUTLET PROTECTION AS SHOWN ON THESE PLANS.
26. WHEN THICK VEGETATION HAS BECOME PERMANENTLY ESTABLISHED, CALL FOR FINAL SITE INSPECTION (SEE NOTE #3 ABOVE).
-DITCH LINER - NAG C350 OR EQUAL
*NOTE* ALL DITCHES LINED W/6"NAG S150
UNLESS OTHERWISE NOTED.
----220-- -EXISTING CONTOUR
220 -PROPOSED CONTOUR
III I -CONCRETE WASHOUT AREA
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-SKIMMER BAFFLES
-SILT FENCE OUTLET
FOR GRAPHIC PURPOSES SILT
FENCE AND LIMITS OF DISTURBANCE
ARE SHOWN SEPARATED. SILT FENCE
IS TO BE INSTALLED AT THE
ACTUAL LIMITS OF DISTURBANCE.
THIS SHEET IS FOR GRADING AND EROSION
CONTROL PURPOSES ONLY. DO NOT USE
THIS SHEET FOR STORMDRAIN
INSTALLATION.
JOHNSTON COUNTY AND TOWN OF
CLAYTON RESERVES THE RIGHT TO MODIFY
THE EROSION AND SEDIMENTATION
CONTROL PLAN IF THE EXISTING PLAN OR
ITS IMPLEMENTATION PROVE TO BE
INADEQUATE.
ALL DITCHES/SWALES ARE TO BE LINED
USING NAG S150 OR SOD UNLESS
OTHERWISE SPECIFIED.
EXISTING PONDS TO REMAIN UNDISTURBED
UNTIL 401/404 PERMIT HAS BEEN RECEIVED
REVISED
11/8/2019 7:30 AM
NOT RELEASED FOR
CONSTRUCTION
GRAPHIC SCALE
( IN FEET)
1 inch = 100 ft.
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DESIGN
DCA/PCE/EK
DRAWN
ADS/EK
CHECKED
DCA
HORIZONTAL SCALE
SEE GRAPHIC SCALE
VERTICAL SCALE
NIA
DATE
0510912019
JOB NO.
SHEET
C4.07