SW3170801_APPROVED PLANS_20170912

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW 5Z 7V2,z)
DOC TYPE ❑ CURRENT PERMIT
APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
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EROSION & SEDIMENT CONTROL
PROJECT DESCRIPTION: UTILITY NOTES PROPOSED LEGEND
The proposed project is located at the Intersection of Salisbury Ave and Sowers Road in Spencer NC. The existing site is currently undeveloped . The current site is 1. EXISTING UTILITIES SHOWN ARE FOR REFERENCE ONLY. CONTRACTOR
approximately 3.26 total acres with approximately 0.13 acres of existing built upon area on site consisting of a concrete slab. The existing BUA is scheduled to be SHALL VERIFY WITH UTILITY COMPANIES THE EXACT LOCATION, SIZE, AND MANHOLE
removed as part of this project. A total of 1.07 acres of BUA is proposed with a 0.07 acre expansion area for a total of 1.14 acres of BUA or 39.96% of the site. The 2 DEPTH OF UNDERGROUND UTILITY LINES.
is to 9 024 1 building drives for the facility. Grading for the '"
ro osed project consist of an approximately sf story along with and parking areas proposed
proposed P P PP Y Y 9 9 P 9 P P Y 9 P P �
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2,ALL CONSTRUCTION MUST BE INSPECTED APPROVED BY THE R Wexpansions
fills 1 to 2 feet to finished The is to balance
will require the disturbance of approximately 2.34 acres with of approximotely reach grades. site expected e/ HYDRANT
therefore will not require the import of structural fill. If unsuitable material is found on site and import material is required, the selected contractor will be required to COUNTY BUILDING INSPECTOR AND IS SUBJECT TO COMPLIANCE WITH ALLimport
fill from a previously approved site or will be required to permit the site where the borrow material will originate from. It wAl be the responsibility of the contractor STATE AND LOCAL CODES.WATER METERto
permit the borrow site if the Identified site has not been previously permitted. �a UTILITY CONNECTIONS INSTALLED BY SALISBURY ROWAN UTILITIES WILL BE
ADJACENT AREAS: AT THE LOCATIONS SHOWN ON THE PLANS. SPECIFIC DETAILS OF THE WATER VALVE 9
CONNECTIONS AND FITTINGS REQUIRED MAY VARY AT THE DISCRETION OF
The site is bordered by undeveloped land to the south and west, Sowers Road to the north, and Salisbury Ave to the east. 101
THE SALISBURY ROWAN UTILITIES. CLEANOUT
SOILS: _ 4. ALL UTILITY STRUCTURES (MANHOLES, POWER POLES, ETC.) VISIBLE AT
g THE GROUND SURFACE WERE FIELD LOCATED. THERE MAY BE OTHER INLET
Solis are identified on the site survey. d <t UNDERGROUND UTILITIES ON THIS SIZE WHICH ARE NOT SHOWN ON THE
pThe
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soils present within the project area are: �� PLANS. TEE I_
Rn8 -Rion-Wedowee Complex 2 to 8 percent slopes - C 5. SEE PLUMBING DRAWINGS FOR CONNECTIONS TO BUILDING SERVICES.
RnC -Rion-Wedowee Complex 8 to 15 percent slopes - C
6. ELECTRICAL AND TELEPHONE LINES SHOWN FOR CO-ORDINATION ONLY. 90' BEND I
CALCULATIONS: SEE ELECTRICAL PLANS FOR SITE LIGHTING, TELEPHONE, AND POWER
ALL CALCULATIONS NECESSARY FOR THE DESIGN OF EROSION AND --SITE ., LOCATIONS. 45' BEND
SEDIMENT CONTROL FACILITIES ARE IN ACCORDANCE WITH THE r 7. ALL WATER LINE CROSSINGS OF SANITARY OR STORM SEWERS SHALL
NCDENR EROSION AND SEDIMENT CONTROL MANUAL AND NCDOT DRAINAGE MANUAL. ALL HYDROLOGIC AND HYDRAULIC COMPUTATIONS ARE INCLUDED IN THE PLANS. a'•' PROVIDE A MINIMUM VERTICAL SEPARATION OF 18". GUARDRAIL -
8. SITE UTILITY CONTRACTOR WORK SHALL TERMINATE AT 5' FROM THE
MANAGEMENT STRATEGIES:
BUILDING. STORM PIPE
I. CONSTRUCTION SHOULD BE SEQUENCED SO THAT GRADING OPERATIONS CAN BEGIN AND END AS QUICKLY AS POSSIBLE. �' *� 9. CONTRACTOR SHALL INCLUDE IN HIS BID THE COST FOR WATER
INSPECTION, SEWER TAP FEES, WATER AND SEWER INSPECTION FEES,
2. SEDIMENT TRAPPING MEASURES SHALL BE INSTALLED AS A FIRST STEP IN GRADING AND SHALL BE SEEDED AND MULCHED IMMEDIATELY WATER METER, CAPACITY USE FEES,CONNECTION COSTS, AND BONDING
FOLLOWINGFOLLoNc INSTALLATION. (IF REQUIRED). PAVEMENT HATCHING LEGEND
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3. TEMPORARY SEEDING OR OTHER STABILIZATION SHALL FOLLOW IMMEDIATELY AFTER GRADING AND SHALL BE IN ACCORDANCE WITH THE SEEDING STABILIZATION CHART. '° .. r 10. SEPARATION - INSTALL WATER MAINS AT LEAST 10 FEET LATERALLY ALL PAVING LIGHT DUTY UNLESS OTHERWISE
FROM EXISTING OR PROPOSED SEWERS, UNLESS CONDITIONS PREVENT A CALLED OUT OR DEPICTED AS BELOW
4. AREAS WHICH ARE NOT TO BE DISTURBED SHALL BE CLEARLY MARKED BY FLAGS, SIGNS, FENCING, ETC.a,rt,
<< #YR° Ald 10-FOOT SEPARATION. WHERE A 10-FOOT LATERAL SEPARATION IS NOT
5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. ISP F C F G PROVIDED, THE WATER MAIN SHALL BE LAID IN A SEPARATE TRENCH OR HEAVY DUTY PAVEMENT
IN THE SAME TRENCH AS THE SEWER ON A BENCH OF UNDISTURBED
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6. FOR DEWATERING OF FOOTINGS. EXCAVATED TRENCHES: A TEMPORARY SETTLING AND FILTERING DEVICE FOR WATER WHICH IS c_� "-` EARTH WITH A MINIMUM VERTICAL SEPARATION OF 18 INCHES FROM THE
DISCHARGED FROM DEWATERING ACTIVITIES IN ACCORDANCE WITH DEWATERING STRUCTURES IN THE STANDARDS AND SPECIFICATIONS, -" TOP OF THE SEWER TO THE BOTTOM OF THE WATER MAIN.
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SECTION 3.26 SHALL BE SUBMITTED TO CITY INSPECTOR PRIOR TO DEWATERING ACTIVITY.'` 11 UTILITY OWNERS ON THE SITE ARE AS FOLLOWS: WATER & SEWER -
7. THE LOCATION OF ALL TEMPORARY STOCKPILES MUST BE SHOWN ON THE PLAN. THE LENGTH OF TIME THAT A STOCKPILE MAY REMAIN WALL a ROWAN COUNTY UTILITIES (AND MUST MEET SALISBURY ROWAN UTILITY CONCRETE
BE LIMITED TO ONE YEAR FROM THE FINAL PLAN APPROVAL, HOWEVER, UPON WRITTEN REQUEST, EXTENSIONS MAY BE GRANTED BY THE DIRECTOR 4
VICINITY MAP STANDARDS AND SPECIFICATIONS), ELECTRICAL -DUKE ENERGY,
OF PUBLIC WORKS.
NOT TO SCALE TELEPHONE -AT&T, NATURAL GAS -PIEDMONT NATURAL GAS I ` �s ECEIVE
8. CONTRACTOR SHOULD HAVE A PLAN FOR DUST CONTROL
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9. PRIOR TO ANY LAND DISTURBING ACTIVITY. ALL WETLANDS, AND OR WATERS OF THE U.S. NOT PERMITTED FOR IMPACT SHALL BE DELINEATED SHEET INDEX o GRAVEL
FOR PROTECTION WITH ORANGE SAFETY FENCE OR (NON -TEARABLE) YELLOW AND BLACK BARRICADE TAPE. CLEARING LIMITS OR LIMITS OF r)Eyi -LAIC OUAL!Tl'
SITE WORK SPECIFICATIONS
DISTURBANCE ASSOCIATED PATH ROADWAYS, UTILITIES. AND BUILDINGS SHALL BE STAKED AND CONTINUOUSLY DELINEATED NTH POLYETHYLENE • CI i.0 COVER 10C)�ti`WVNATERPERMITTING
PLASTIC RIBBON BY A LICENSED SURVEYOR. CI SITE NOTES
.1 SITE PREPARATION CONCRETE PAVING
10. WHERE APPLICABLE AND .APPROVED BY THE ENVIRONMENTAL INSPECTOR. SUPER SILT FENCE MAY BE USED IN LIEU OF SAFETY • C' .0 EXISTING CONDITION & DEMOLITION PLAN PRIOR TO CONSTRUCTION, THE PROPOSED CONSTRUCTION AREA SHOULD BE STRIPPED OF !� ''• a
FENCE OR BARRICADE TAPE. ADDITIONAL RESTORATION OR REPLANTING OF APPROPRIATE SPECIES. AS APPROVED BY THE ENGINEER, MAY BE
• C SITE PLAN TOPSOIL, ORGANIC MATERIAL, AND OTHER SOFT OR UNSUITABLE MATERIAL WITHIN THE
REQUIRED IN PERMANENT EASEMENTS AND TEMPORARY CONSTRUCTION EASEMENTS THROUGH RESOURCE PROTECTION AREAS OR BUFFERS. .1
• C .2 UTILITY PLAN BUILDING FOOTPRINT. UPON COMPLETION OF THESE RAZING AND STRIPPING OPERATIONS, THE
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• C' .3 GRADING & DRAINAGE PLAN EXPOSED SUBGRADE IN AREAS TO RECEIVE FILL SHOULD BE PROOFROLLED WITH A LOADED
C
GENERAL NOTES:
• C .4 EROSION &SEDIMENT CONTROL PLAN DUMP TRUCK OR SIMILAR PNEUMATIC -TIRED VEHICLE HAVING A LOADED WEIGHT OF
1. SOIL EROSION CONTROL DEVICES MUST BE INSTALLED BEFORE ANY ROUGH GRADING AND INITIALLY AFTER THE GRADING PERMIT IS ISSUED. INSPECTION STAFF SHALL • C' DRAINAGE AREA PLAN APPROXIMATELY 25 TONS. AFTER EXCAVATION, THE EXPOSED SUBGRADES IN CUT AREAS
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CHECK THESE DEVICES FOR PROPER INSTALLATION AND COMPLIANCE NTH THIS PLAN. A CERTIFICATE OF PERFORMANCE MAY BE ISSUED CHECK W/ESSC INSPECTION STAFF • SHOULD BE SIMILARLY PROOFROLLED. PROOFROLLING OPERATIONS SHOULD BE PERFORMED
C• STORM DETENTION POND PLAN &DETAILS
ON INSPECTION SCHEDULE. CONTRACTOR WILL BE RESPONSIBLE FOR SCHEDULING THOSE INSPECTIONS IF REQUIRED. THE GRADING PERMIT AND A COPY OF THE APPROVED •� UNDER THE OBSERVATION OF A GEOTECHNICAL ENGINEER OR HIS AUTHORIZED EROSION CONTROL LEGEND
EROSION CONTROL PLAN MUST BE KEPT ON THE SITE AND MADE AVAILABLE TO INSPECTION STAFF AT ALL TIMES. • C...2 SITE DETAILS REPRESENTATIVE. THE PROOFROLLING SHOULD CONSIST OF TWO (2) COMPLETE PASSES OF
2. ALL EROSION CONTROL DEVICES ARE TO BE INSTALLED IN ACCORDANCE NTH THE APPROVED PLANS AND SPECIFICATIONS. ANY CHANGES ARE TO BE APPROVED BEFORE • C. ,•3 UTILITY DETAILS THE EXPOSED AREAS, WITH EACH PASS BEING IN A DIRECTION PERPENDICULAR TO THE SF TEMPORARY SILT FENCE
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CONSTRUCTION BY THE INSPECTION STAFF. ADDITIONAL DEVICES MAY BE REQUIRED IF NECESSARY. • C, EROSION & SEDIMENT CONTROL DETAILS PRECEDING ONE. AREAS WHICH DEFLECT, RUT OR PUMP DURING THE PROOFROLLING, AND FAIL
• L' .0 LANDSCAPE PLAN & DETAILS TO BE REMEDIED WITH SUCCESSIVE PASSES, SHOULD BE UNDERCUT TO SUITABLE SOILS AND
3. IF FILL MATERIALS ARE TO BE BROUGHT ONTO THIS PROPERTY OR WASTE MATERIALS ARE TO BE TAKEN FROM THIS PROJECT, THIS INFORMATION MUST BE DISCLOSED TO 30
A BACKFILLED WITH COMPACTED FILL. THE ABILITY TO DRY WET SOILS, AND THEREFORE THE TEMPORARY DIVERSION BERM
AND SHOWN A REVISED EROSION CONTROL AND GRADING PLAN. BORROW AREAS AND DUMP SITES, IF REQUIRED, ARE CONSIDERED TO PART OF THIS PROJECT.
ABILITY TO USE THEM FOR FILL, WILL LIKELY BE ENHANCED IF EARTiHWORK IS PERFORMED
W CLEARING LIMITS
4. IN AN EFFORT TO MINIMIZE EROSION AND EXPOSURE TIME, EASEMENT AREAS SHALL NOT BE GRUBBED OR GRADED UNTIL UTILITIES ARE READY TO BE INSTALLED. ALSO, DURING SUMMER OR EARLY FALL. IF EARTHWORK IS PERFORMED DURING WINTER OR AFTER
THE IMMEDIATE SEEDING OF DISTURBED EASEMENT AREAS AFTER UTILITIES ARE INSTALLED WILL BE REQUIRED. EASEMENT AREAS WHICH CROSS OR ARE ADJACENT TO ZONING DAT., APPRECIABLE RAINFALL THEN SUBGRADES MAY BE UNSTABLE DUE TO WET SOIL CONDITIONS,
MATTING MATERIAL
WATERCOURSES MUST RECEIVE SPECIAL CONSIDERATION. WHICH COULD INCREASE THE AMOUNT OF UNDERCUTTING REQUIRED. DRYING OF WET SOILS, IF
5. ALL TEMPORARY EROSION CONTROL DEVICES MUST BE MAINTAINED THROUGHOUT CONSTRUCTION IN ACCORDANCE WITH NCDENR EROSION AND SEDIMENT CONTROL ITEM REQUIRED ACTUAL ENCOUNTERED, MAY BE ACCOMPLISHED BY SPREADING AND DISKING OR BY OTHER
REQUIREMENTS. DEVICES MUST BE INSPECTED BY THE CONTRACTOR AFTER EACH PERIOD OF RAINFALL, BUT NOT' LESS FREQUENTLY THAN ONCE EACH WEEK. ACCUMULATED - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MECHANICAL OR CHEMICAL MEANS.
SEDIMENT MUST BE REMOVED AND DISPOSED OF SO AS NOT TO HINDER THE PERFORMANCE OF THE EROSION CONTROL DEVICES. ANY DEVICE NEEDING REPAIR OR MIN. LC r SIZE N/A SF 011
TEMPORARY CONSTRUCTION ENTRANCE
REPLACEMENT MUST BE ADDRESSED IMMEDIATELY. ADDITIONAL STONE MAY BE REQUIRED PERIODICALLY AT CONSTRUCTION ENTRANCE TO PREVENT TRAFFIC FROM CARRYING MIN. LC T WIDTH N FILL MATERIAL AND PLACEMENT °
A FT
AMOUNTS RECORDED IN A LOG, PER NEPDES REQUIREMENTS. / o
SEDIMENT ONTO EXISTING ROADWAY. A RAIN GAUGE MUST BE MAINTAINED ON THE SITE AND RAINFALL
MIN. SE BACKS THE PROJECT IMPORT/FILL SHOULD BE SOIL THAT HAS LESS THAN FIVE PERCENT ORGANIC
6. SIDE DITCHES 2% OR STEEPER SHALL BE RIPRAPPED, OR SEEDED AND STABILIZED WITH EXCELSIOR MATTING (OR OTHER APPROVED MATERIAL), OR STABILIZED BY ANY FF JNT (East) 10 FT FT CONTENT AND A LIQUID LIMIT AND PLASTICITY INDEX LESS THAN 50 AND 30, RESPECTIVELY. TEMPORARY INLET PROTECTION
OTHER METHOD APPROVED BY NCDENR. RE 4R (West) 15 FT FT SOILS WITH UNIFIED SOIL CLASSIFICATION SYSTEM GROUP SYMBOLS OF SP, SW, SM, SC, AND
7. ANY SLOPE INDICATED STEEPER THAN 3 TO 1 SHALL BE COVERED WITH EXCELSIOR MATTING TO PREVENT EROSION AFTER SEEDING. SEEDING OF THESE SLOPES SHALL SI E (North) 20 FT FT ML ARE GENERALLY SUITABLE FOR USE AS PROJECT FILL. SOILS WITH USCS GROUP SYMBOL
OCCUR IMMEDIATELY UPON ESTABLISHING FINISH GRADE. SI E (South) 20 FT FT OF CL THAT MEET THE RESTRICTIONS FOR LIQUID LIMIT AND PLASTICITY INDEX ARE ALSO RIP RAP OUTLET PROTECTION
MAX. B HGT. 50 FT FT SUITABLE FOR USE AS PROJECT FILL. SOILS WITH USCS GROUP SYMBOL OF CI-1 (HIGH
8. THE OWNER OR RESPONSIBLE PARTY IS RESPONSIBLE FOR THE LONG TERM MAINTENANCE OF THE GROUNDCOVER ON THE PROPERTY. GROUNDCOVER MUST BE .DG.
MAX. L IT. COVERAGE 70% % PLASTICITY SOIL) OR CORROSIVE SOILS ARE GENERALLY NOT SUITABLE FOR USE AS
MAINTAINED TO A DEGREE THAT PREVENTS SOIL EROSION AND SEDIMENTATION AT ALL TIMES. THE CITY OF GREENSBORO HAS THE AUTHORITY TO REQUIRE
EROSION AND SEDIMENTATION AT ANY TIME. ENGINEERED FILL. THE FILL SHOULD EXHIBIT A MAXIMUM DRY DENSITY OF AT LEAST 90
CHANGES IN THE OWNERS GROUNDCOVER MAINTENANCE PLAN IN ORDER TO STOP SOIL DOUGHNUT INLET/OUTLET PROTECTION
PARKIN SPACES POUNDS PER CUBIC FOOT, AS DETERMINED BY A STANDARD PROCTOR COMPACTION TEST
9. CITY INSPECTOR MUST BE CONTACTED AT LEAST 24 HOURS PRIOR TO ANY LAND DISTURBING ACTIVITY.
MI DICAL OFFICE (ASTM D 698). WE RECOMMEND THAT MOISTURE CONTROL LIMITS OF -3 TO 4-2 PERCENT OF
10. EXCESS EXCAVATION DISPOSED OF OFF SITE SHALL BE DISPOSED OF IN ACCORDANCE NTH NCDENR STANDARDS. 4 PER DOCTOR THE OPTIMUM MOISTURE CONTENT BE USED FOR PLACEMENT OF PROJECT FILL WITH THE SITE DATA
(1-DOCTOR) 1 4 ADDED REQUIREMENT THAT FILL SOILS PLACED WET OF OPTIMUM REMAIN STABLE UNDER 1, PROPERTY OWNERS
11. EROSION AND SEDIMENT CONTROLS SHALL REMAIN UNTIL THE DISTURBED AREA IS STABILIZED AND SHALL BE MAINTAINED SO THAT
PER EMPLOYEE HEAVY PNEUMATIC -TIRED CONSTRUCTION TRAFFIC. DURING SITE GRADING, SOME MOISTURE PARCEL NOS. 045 014 AND 046 011
SEDIMENT CARRYING RUNOFF FROM THE SITE WILL NOT ENTER STORM DRAINAGE FACILITIES
(14-EMPLOYEE) 14 39 MODIFICATION (DRYING AND/OR WETTING) OF THE ONSITE SOILS WILL LIKELY BE REQUIRED. SYLVIA EVERHART MAHALEY
12, IN THE EVENT A CONTRACTOR DUMPS, DISCHARGES OR SPILLS ANY OIL OR CHEMICAL THAT REACHES, OR HAS THE POTENTIAL TO REACH, A T( TAL 15 43 PROJECT FILL SHOULD BE COMPACTED TO AT LEAST 95 PERCENT OF ITS STANDARD PROCTOR 300 SOWER ROAD
BWATERWAY,
THE CONTRACTOR SHALL IMMEDIATELY NOTIFY ALL APPROPRIATE JURISDICTIONAL STATE, FEDERAL. AND CITY .AGENCIES Hi NDICAP SPACES 2 6 MAXIMUM DRY DENSITY EXCEPT WITHIN 24 INCHES OF FINISHED SOIL SUBGRADE ELEVATION SALISBURY, NC 28144
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AND SHALL TAKE IMMEDIATE ACTIONS FOR CONTAINMENT AND REMOVAL OF THE OIL OR CHEMICAL. BENEATH SLAB -ON -GRADE AND PAVEMENTS. WITHIN THE TOP 24 INCHES OF FINISHED SOIL
13. A SELF -INSPECTION MUST BE MADE OF THE PROJECT AFTER EACH PHASE OF THE PROJECT, AND THE INSPECTION SHALL BE DOCUMENTED IN WRITING. THIS SUBGRADE ELEVATION BENEATH SLAB ON GRADE AND PAVEMENTS, THE APPROVED PROJECT 2• PROPERTY DEVELOPER
SELF -INSPECTION WILL BE PERFORMED IN ADDITION TO THE NPDES SELF -MONITORING REPORT REQUIRED BY THE NCDENR GENERAL PERMIT. THE GENERAL CONTRACTOR WILL FILL SHOULD BE COMPACTED TO AT LEAST 100 PERCENT OF ITS STANDARD PROCTOR HILL/GRAY SEVEN, LLC
BE RESPONSIBLE FOR KEEPING THESE FORMS AND MAINTAINING THEM ON SITE FOR ANY ONSITE INSPECTIONS. MAXIMUM DRY DENSITY. AGGREGATE BASE COURSE ABC STONE SHOULD BE COMPACTED TO
( ) 1350 CITY VIEW CENTER
CONSTRUCTION SEQUENCE 100 PERCENT OF STANDARD PROCTOR MAXIMUM DRY DENSITY. HOWEVER, FOR ISOLATED OVIEDO, FL 32765
19. ONCE GROUND STABILIZATION IS ESTABLISHED CLOSE SEDIMENT BASINS BY REMOVING ALL ACCUMULATED SEDIMENT AND BAFFLES. EXCAVATIONS AROUND FOOTING LOCATIONS OR WITHIN UTILITY EXCAVATIONS, A HAND TAMPER CONTACT: GRAY HILL 407-588-2123
DE T PR DISPOSE OF ALL SEDIMENT ACCORDING TO NCDE LA .
THE TEMPORARY EROSION AND SEDIMENT CONTROL ITEMS SHOWN ON THEE & S CONTROL PLAN ARE INTENDED o PROVIDE A Q WILL LIKELY BE REQUIRED. FIELD DENSITY TESTS BE PERFORMED AS INDICATED IN THE
GENERAL PLAN FOR EROSION AND SEDIMENT PLAN IS BASED ON
THE PROJECT LIMITS. THEE & S CONTROLSPECIFICATIONS SECTION OF THE PLAN SHEETS, OR AT A FREQUENCY DETERMINED BY AN 3. REFERENCES
FIELD CONDITIONS AT THE TIME OF PLAN DEVELOPMENT AND AN ASSUMED SEQUENCE OF CONSTRUCTION. THE CONTRACTOR, IN 20. BEGIN CONVERTING SEDIMENT BASIN TO PERMANENT WET POND. CLOSE 8" DRAIN VALVE TO ALLOW POND TO FILL TO NORMAL
THE TIME O D AN
EXPERIENCED GEOTECHNICAL ENGINEER, TO VERIFY THAT PROPER COMPACTION IS ACHIEVED.
ENVIRONMENTAL MONITOR, SHALL ADJUST THE POOL ELEVATION. _ PARCEL N0. 045 014
CONJUNCTION WITH THE CITY ENGINEER &DESIGN ENGINEER AND/OR ENVIR
LOCATION. QUANTITY AND TYPE OF EROSION AND SEDIMENT CONTROL ITEMS REQUIRED BASED ON THE ACTUAL FIELD CONDITIONS THE MAXIMUM LOOSE LIFT THICKNESS DEPENDS UPON THE TYPE OF COMPAC IRON EQUIPMENT D.B. 1163 PG. 234
ENCOUNTERED AT THE TIME OF CONSTRUCTION AND THE SELECTED SEQUENCE OF CONSTRUCTION. THE AREAS BEYOND THE 21. INSTALL STONE BAFFLE AND VEGETATED SHELF PLAN INGS. USED BUT SHOULD NOT EXCEED 8" IN DEPTH WHEN USING LARGE SELF-PROPELLED PARCEL N0. 046 011
PROJECT'S CONSTRUCTION AREA ARE TO BE PROTECTED FROM SEDIMENT. PERIMETER CONTROLS SUCH AS FILTER BARRIER, SUPER EQUIPMENT, 6" FOR SMALL SELF-PROPELLED EQUIPMENT, 4" IN DEPTH FOR HAND OPERATED D.B. 1163 PG. 234
SILT FENCE, DIVERSION DIKES, ETC, SHALL BE INSTALLED PRIOR TO ANY GRUBBING OPERATIONS OR OTHER EARTH MOVING ACTIVITIES. 22. REMOVE ALL REMAINING EROSION CONTROL DEVICES HEN ALL DISTURBED AREAS HAVE BEEN STABILIZED. STABILIZE ANY AREAS EQUIPMENT.FILL OPERATIONS SHOULD BE OBSERVED AND TESTED BY AN ENGINEERING
DISTURBED BY REMOVAL OF DEVICES IMMEDIATELY.
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TECHNICIAN TO DETERMINE IF COMPACTION REQUIREMENTS ARE BEING MET. THE TESTING 4. ADDRESS
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1. OBTAIN PLAN APPROVAL AND GRADING PERMIT. SCHEDULE PRE -CONSTRUCTION MEETING NTH ROWAN COUNTY IF REQUIRED. 23. CLOSE PROJECT WITH ROWAN COUNTY. AGENCY SHOULD PERFORM A SUFFICIENT NUMBER OF TESTS TO CONFIRM THAT COMPACTION SALISBURY AVENUE
MAINTENANCE SCHEDULE IS BEING ACHIEVED. FOR MASS GRADING OPERATIONS WE RECOMMEND A MINIMUM OF ONE SALISBURY, NORTH CAROLINA 28144
2. MARK CLEARING LIMITS, PRIOR TO BEGINNING CONSTRUCTION. DENSITY TEST PER 2,500 SF PER LIFT OF FILL PLACED OR PER 1 FOOT OF FILL THICKNESS,
3. INSTALL GRAVEL CONSTRUCTION ENTRANCE NTH DRIVEWAY PIPE AT LOCATION SHOWN ON PLANS. INSTALL PIPE INLET I. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL AEASURES WILL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL WHICHEVER RESULTS IN MORE TESTS. WHEN DRY, THE MAJORITY OF THE SITE SOIL SHOULD 5. ZONING DISTRICT
PROTECTION ON DRIVE PIPE. BY THE INSPECTOR OR HIS DESIGNATED REPRESENTATIVE ANY DEFICIENCIES SHALL BE REPAIRED BY THE CLOSE OF DAY. PROVIDE ADEQUATE SUBGRADE SUPPORT FOR FILL PLACEMENT AND CONSTRUCTION EXISTING: HB -HIGHWAY BUSINESS
MAINTENANCE SHALL CONTINUE THROUGHOUT THE LENGT OF THE PROJECT. OPERATIONS. WHEN WET, THE SOIL MAY DEGRADE QUICKLY WITH DISTURBANCE FROM
4. CLEAR SITE ONLY AS REQUIRED TO INSTALL PERIMETER SILT FENCE, DIVERSION BERMS AND SEDIMENT BASIN. 2. SILT REMOVAL AND SEDIMENT CLEAN -OUT FROM ER( 31ON AND SEDIMENT CONTROL ITEMS SHALL BE PERFORMED IN ACCORDANCE CONSTRUCTION TRAFFIC. GOOD SITE DRAINAGESHOULD BE MAINTAINED DURING EARTHWORK 6. EXISTING USE: VACANT AND UNDEVELOPED
5. INSTALL INSTALL SEDIMENT BASIN NTH RISER AND BARREL KIT. INSTALL SKIMMER AND BAFFLES WITHIN BASIN TO SET UP AS WITH THE FOLLOWING: SILT FENCES AND DROP INLET 'ROTECTION WILL BE CHECKED REGULARLY AND WILL BE CLEANED OUT WHEN OPERATIONS TO PREVENT PONDING WATER ON EXPOSED SUBGRADES. TESTING SHOULD BE PROPOSED USE: MEDICAL CLINIC
EROSION CONTROL DEVICE. THE CAPACITY, HEIGHT OR DEPTH HAS BEEN REDUCE , BY 5OX PERFORMED ON UTILITY TRENCH BACK FILL AT A MINIMUM OF ONE TEST PER 1 F00T
3. ALL SEEDED AREAS WILL BE CHECKED REGULARLY 0 SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHALL BE FERTILIZED THICKNESS OF FILL FOR EVERY 100 LINEAR FT OF UTILITY TRENCH BACKFILL, WHERE FILL WILL 7, TRACT SIZE = 4.995 ACRES
6. COMPLETE SILT DIVERSIONS TO DIRECT ALL RUNOFF INTO SEDIMENT BASIN. ANDRE-SEEDED AS NEEDED. BE PLACED ON EXISTING SLOPES, WE RECOMMEND THAT BENCHES BE CUT IN THE EXISTING PORTION OF PARCEL NO. 045 014 = 3.485 ACRES +/-
7. STABILIZE TEMPORARY MEASURES, SUCH AS BERMS AND SEDIMENT TRAPS W/TEMP SEEDING AND/OR EXCELSIOR MATTING WITHIN SLOPE TO ACCEPT THE NEW FILL. ALL FILL SLOPES SHOULD BE OVERBUILT AND THEN CUT /
PARCEL NO. 046 011 1.51 ACRES + -
4• STREETS SHALL BE KEPT CLEAN OF MUD AND SILT. I ERIODIC CLEANING OF STREETS SHALL BE PERFORMED.
14 DAYS OF INSTALLATION. BACK TO EXPOSE COMPACTED MATERIAL ON THE SLOPE FACE. WHILE COMPACTING ADJACENT
TO BELOW -GRADE WALLS, HEAVY CONSTRUCTION EQUIPMENT SHOULD MAINTAIN A HORIZONTAL EXIST BUA = 0.13 ACRES (2.60%)
8. ALL EROSION CONTROL DEVICES SHALL BE MAINTAINED THROUGHOUT THE LIFE OF CONSTRUCTION FOR THEIR INTENDED PURPOSE. 5. OVERLAND DRAINAGE SHALL NOT CONTAMINATE ROAD VAY PAVEMENT SURF ACES.
DISTANCE OF 1(H):1(V). IF THIS MINIMUM DISTANCE CANNOT BE MAINTAINED, THE COMPACTION EXIST BUA REMOVED = 0.13 ACRES (2.60%)
SHOULD DEVICES FAIL OR BECOME INEFFECTIVE AT TRAPPING SEDIMENT, THEY SHALL BE REPLACED WITH NEW MATERIALS AS 6. THE E.&S.C. INSPECTOR SHALL HAVE THE AUTHORIT` TO ADD OR DELETE EROSION AND SEDIMENT CONTROLS AS NEEDED IN THE EQUIPMENT SHOULD RUN PERPENDICULAR, NOT PARALLEL TO, THE LONG AXIS OF THE WALL. PROPOSED BUA = 1.07 ACRES (21.42%)
DEEMED NECESSARY BY THE INSPECTOR FIELD AS CONDITIONS WARRANT. IN ADDITION, NO El DSION AND SEDIMENT CONTROL MEASURES MAY BE REMOVED WITHOUT PRIOR FUTURE BUA = 0.07 ACRES (1.407.)
9. CLEAR REMAINDER OF SITE. APPROVAL OF THE INSPECTOR. UNSUITABLE MATERIALS TOTAL BUA = 1.14 ACRES (22.82%)
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10. BEGIN ROUGH GRADING FOR BUILDING PAD AND PARKING LOTS. ADJUST TEMP DIVERSION BERMS AS REQUIRED TO KEEP POSITIVE GENERAL EROSION AND SEDIMENT CONTROL NOTES ANY UNSUITABLE MATERIALS AS DETERMINED BY THE PROJECT GEOTECHNICAL ENGINEER, DISTURBED AREA = 2.53 ACRES (50.077.)
SHOULD
A
FLOW INTO SKIMMER BASIN. BE REMOVED FROM AND PROPERLY DISPOSED OF IN AN APPROVED OFFSITE
I. CITY INSPECTOR MUST BE CONTACTED AT LEAST 24 HOURS PRIOR TO ANY LAND DISTURBING ACTIVITY. LOCATION. ANY ROCK THAT IS ENCOUNTERED DURING CONSTRUCTION AND REQUIRED TO BE NOTES
11. CONTINUE ROUGH GRADING AND INSTALL STORM DRAINAGE AND SITE UTILITIES AS GRADING PROGRESSES. INSTALL INLET REMOVED, SHOULD BE REMOVED FROM SITE AND PROPERLY DISPOSED OF IN AN APPROVED
2. EXCESS EXCAVATION DISPOSED OF OFF SITE SHALL E :DISPOSED OF IN ACCORDANCE WITH NCDENR STANDARDS.
PROTECTION AT ALL CURB AND DROP INLETS AS INSTALLED. OFFSITE LOCATION. THE PROJECT GEOTECHNICAL ENGINEER OR OWNERS REPRESENTATIVE 1. GEOMETRIC AND TOPOGRAPHIC DATA FROM SURVEY BY
12. TEST AND FLUSH UTILITIES IN ACCORDANCE TO CITY OF GREENSBORO SPECIFICATIONS AND SUBMIT AS -BUILT SURVEY TO EROSION AND SEDIMENT CONTROLS SHALL REMAIN NTIL THE DISTURBED AREA IS STABILIZED AND SHALL BE MAINTAINED SO 3. SHALL QUANTIFY THE AMOUNT OF UNSUITABLE SOILS AND/OR ROCK THAT MAY BE SACKS SURVEYING AND MAPPING, PC, 3308-B EDGEFIELD
THAT SEDIMENT CARRYING RUNOFF FROM THE SITE W .L NOT ENTER STORM DRAINAGE FACILITIES
ENGINEER FOR REVIEW AND APPROVAL ENCOUNTERED DURING CONSTRUCTION. ROAD, GREENSBORO, NC 27409.
13. FINE GRADE PROPOSED BUILDING PAD, DRIVES AND PARKING LOTS. 4. IN THE EVENT A CONTRACTOR DUMPS, DISCHARGES )R SPILLS ANY OIL OR CHEMICAL THAT REACHES, OR HAS THE POTENTIAL
TO REACH, A WATERWAY, THE CONTRACTOR SHALL IMME NATELY NOTIFY ALL APPROPRIATE JURISDICTIONAL STATE, FEDERAL AND BORROW49ASTE NOTE 2. THIS SITE IS NOT LOCATED IN A 100 YEAR FLOOD ZONE
CITY .AGENCIES AND SHALL TAKE IMMEDIATE AC TONS FOR CONTAINMENT AND REMOVAL OF THE OIL OR CHEMICAL.
14. PLACE STONE ON BUILDING PAD, DRIVES AND PARKING AREAS. PER F.I.R.M. COMMUNITY PANEL 3710577100J, AND
5. CONTRACTOR WILL BE REQUIRED To MAINTAIN THE ;ELF -INSPECTION FORMS AND MUST BE AVAILABLE ON SITE. INSPECTIONS WHEN THE PERSON FINANCIALLY RESPONSIBLE FOR THE OVERALL PROJECT 3710578100K, EFFECTIVE DATE JUNE 16, 2009.
15. BEGIN BUILDING CONSTRUCTION. MUST BE MADE DURING THE PROJECT AFTER EACH PHASE OF THE PROJECT, AND THE INSPECTION SHALL BE DOCUMENTED IN IS NOT THE PERSON FINANCIALLY RESPONSIBLE FOR THE OFF -SITE BORROW
16. PAVE BASE COURSE ON DRIVES AND PARKING AREAS. WRITING. THIS SELF -INSPECTION WILL BE PERFORME ) IN ADDITION TO THE NPDES SELF -MONITORING REPORT REQUIRED BY THE AREAS NOT REGULATED BY THE PROVISIONS OF THE MINING ACT OF 1971 3. THE PROPERTY IS LOCATED IN A DESIGNATED PHASE II
NCDEQ GENERAL PERMIT. CONTRACTOR WILL ALSO 3E RESPONSIBLE FOR COMPLETING AND MAINTAINING THE SELF -MONITORING AND OFF -SITE WASTE AREAS OTHER THAN LANDFILLS REGULATED BY THE STORMWATER AREA.
17. COMPLETE BUILDING CONSTRUCTION REPORTS. REPORTS ARE TO REMAIN ON SITE AN AV ILABLE FOR INSPECTION DEPARTMENT OF HUMAN RESOURCES, SUCH AREAS SHOULD BE CONSIDERED
18. INSTALL TEMPORARY OR PERMANENT SEEDING ON ALL DISTURBED AREAS IN ACCORDANCE TO THE GROUND STABILIZATION CHART SEPARATE LAND DISTURBING ACTIVITIES SUBJECT TO THE SEDIMENTATION
POLLUTION CONTROL ACT OF 1973.
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Architecture I Engineering I Interior Design
Triad Design Group, P.0
4807-C Koger Boulevard
Greensboro, NC 27407
Telephone [phone]
Facisimile 336 218-8010
www.tdad-designgrcup.com
NC Architecture Reg. 50709
NC Engineering Lic. C-1108
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GRADING &
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Date: MAY 26, 2017
Drawn: LNS Check: LAH
Job Number: 17-025
Sheet:
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Architectural Engineering I Intenor Design
Triad Design Group, P.0
4807-C Koger Boulevard
Greensboro, NC 27407
Telephone [phone]
Facisimile 336 218-8010
www.tdad-designgroup.com
NC Architecture Reg. 50709
NC Engineering Lic. C-1108
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Drawn: LNS Check: LAH
Job Number: 17-025
Sheet:
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CONSTRUCT DAM WITH IMPERMEABLE
SOILS. COMPACTED TO 98% STD.
- - '- 20, 738 47 PROCTOR DENSITY W/ A MOISTURE
100 YR. FLOOD STAGE CONTENT OF -1X T +3% OF
EL 738.50 SHALL BE
S&
STM 7t 10 YR. FLOOD STAGE 737.89 IN CHARACTER INSTALLED IN 8"M
tl x N� ` '° I [t/ EL 737.50 MAXIMUM LIFTS. SOILS SHALL BE
\ Q 737.76 RISER - SEE FREE OF ORGANICS & PARTICLES OF
�T 2 YR. FLOOD STAGE
Q DETAIL X/C2.4 2" OR GREATER.
EL 736.50
m 10' VEG. SHELF i OH/1V) 10' 1 YR. FLOOD STAGE 737.50
10' 10'
% T/SHELF 737.00 SHELF TEMP. BAFFLES TO REMAIN IN MIN. SHELF
SHELF 736.00 10'
PLACE DURING CONSTRUCTION EL 732.00
/
9 FOREBAY SEE PLAN MIN.
=, INSTALL AFTER ALL AREAS DRAINING EL. 730.50 EL 740.00
INTO POND ARE STABILIZED
\
FLOODWATER STAGE I
SPILL
1 SPILLWAY 3 MAxSLOPE
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TEMP. W.Q. STORAGE 3 EL 738.50
_ - - 3 1/8"x6' SQ. ALUM. PL
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J PIPE PER .SEDIMENT STORAGE
/ TO BOTTOM OF POND 1 L I1
PIPE. J
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IS TO BE PI MPED OUT AT TIME OF 1' THK. NCDOT INSTALL DURING TRANSITION c� a - 4) ANTI -SEEP PLATES AT
2� 2� � �LANGE
_ CLEANING 0 DURING MAINTENANCE. #57 STONE FROM SED. BASIN TO WET INV. 734.00 JOINTS WITH
DETENTION POND 150 LF 18"- 2 NEOPRENE GASKETS
1 FOR EACH SIDE) TO
TEMP. FAIRCLOTH SKIMMER, CAP* 0 1.00% L`NSURE WATERTIGHT
C THE SOIL IN THE POND BOTTOM WALL BE EVALUATED TO DETERMINE ATTACH TO 80- DRAIN SEAL.
WHETHER A LINER IS R =IRED. THE PERMANENT POOL ELEVATION (TO BE REMOVED ON TRANSITION
CUT-OFF TRENCH
MUST BE MAINTAINED i T THE PROPOSED PERMANENT POOL ELEVATION 7O PERMANENT POND AND VALVE
TO INSURE THE SURVI% tL OF THE PLANTS ON THE VEGETATED SHELF. CLOSED OFF) BACKFILL W/IMPERMEABLE
*. IF A LINER IS USED. A LINER SHALL BE CONSTRUCTED OR COMPACTED SOILS COMPACTED TO
SUCH THAT THE INFILT ATION RATE IS NO MORE THAN 0.01 IN./HR.. TOP 95% STD. PROCTOR DENSITY
738.50 SOIL FOR VEGETATION IUST BE PLACED ON TOP OF LINER.
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\ o WET DETENTION POND /SEDIMENT BASIN INLET ORIFICE
N
ALUMINUM STRAPS
I -NOTE- DETAIL Y/C2.4 SUSPENDING INLET
TEMPORARY ;EDIMENT BASIN SHALL BE COMPLETELY CLEANED OF SEDIMENT 1' VENT WITH YELLOW TIP
AND UPGRAL M TO FUNCTION AS PERMANENT DETENTION POND AFTER ALL PERMANENT NO SCALE PVC FLOAT
EROSION COI TROL METHODS ARE ESTABLISHED AS INDICATED ON FINAL SITEWORK
\ PACKAGE OF \WINGS
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STORAGE -
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EL 738.50 21NLET EXTENSION CENTER OF INLET
- -
4a AND ORIFICE
TOP OF RISER PATENT /5,820,751
EL. 737.50 CRAMPS. PATENT
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OUTLET END SKIMMER DETAIL
NORMAL POND LEVEL EL 736.50
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TEMP. FAIRCLOTH SKIMA :R, BRACKET, HELI ALUM.
SEE DEL Z/C2.
ATTACH TO 6"� DRAIN 1 AGE PIPE
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CAP
POND
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STM F 8"- DRAIN
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FLANGE JOINTS WITH 20' LEVEL
1.5' 3/8" NEOPRENE
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EL 730.5 - _ _
STORM DETENTION POND - - -1 I ;,• ; ....;;;: ;;
1 -20 NOTE - VOLUME BELOW 8-� DRAIN PIPE 1
IS TO BE PUMPED OUT AT TIME OF �
CLEANING OR DURING MAINTENANCE. N 3
PROFILE EMERGENCY SPILLWAY
20' GRASS
4' 5.5x5.5'
FROM TOE OF DAM EL 740.00 3
POND RISER ANCHOR INTO CONC.
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(10 YEAR DESIGN STORM)
(1 REQUIRED) EL 738.50
DETAIL X/C2.4
NO SCALE
WET DETENTION POND CALCULATIONS TOTAL DESIGN SECTION - EMERGENCY SPILLWAY CREST
PROPOSED FUTURE BUILT -UPON AVG. PERM. PONI TEMP. W.Q. TEMP. W.Q. P=RMANENT PERMANENT FOREBAY FOREBAY EMERGENCY SPILLWAY
POND DRAINAGE FUTURE BUILT -UPON BUILT -UPON DRAINAGE W.Q. TSS POND AREA ARE, STORAGE STORAGE SEDIMENT SEDIMENT VOLUME VOLUME W.Q. W.Q. RELEASE WEIR
No. AREA DRAINAGE AREA DRAINAGE AREA DRAINAGE AREA AREA STORAGE DEPTH REMOVAL SA/DA REQUIRED PROVIL __D REQ'D. PROVIDED STORAGE REQUIRED STORAGE PROVIDED REQUIRED (20%) PROVIDED OUTLET TIME RISER BARREL LENGTH (1EMEM YEAR DESIGN STORM)
B
B
DETAIL V/C2.4
1 2.23 AC. 0.00 AC. 1.07 AC. 0.07 AC. 1.14 AC. 3.42 FT (AVG.) 90% 3.26 3,678 SF 5,660 3F 4,018 CF 6,685 CF 1,175 CF 1,645 CF 3,553 CF 4,000 CF 0.75"- 3.83 DAYS 30"- 12"- 20' NO SCALE
ALUM. ALUM.
* PIPE SHALL BE 14 GAGE HELICAL ALUMINUM R R (--) V_D
WET POND CONSTRUCTION NOTES AP
SEDIMENT BASIN #1 CALCULATIONS 1. ANTI -SEEP COLLARS SHALL BE INSTALLED IN ACCORDANCE WITH THE REQUIREMENTS OF THE NORTH1ia"
BASIN DRAINAGE DISTURBED SURFACE AREA SURFACE AREA SED. STORAGE SED. STORAGE DESIGN DEWATER FAIRCLOTH SKIMMI R WEIR CAROLINA STORMWATER MANUAL
-
No AREA AREA REQUIRED PROVIDED REQUIRED PROVIDED OUTLET FLOW (Q10) TIME SKIMMER ORIFIC LENGTH vc OEt2 S6xrn V�tg
4,212 CF 8,025 CF 8" 7.21 CFS 3 DAYS 2" 1.8"^ 30" RISER 2. ALL AREAS LOCATED ALONG AND ABOVE THE POND BENCH SHALL RECEIVE A MINIMUM OF 4 INCHES
�Y.-1//Y�`�_�
1 2.34 AC. 234 2,334 SF 3,920 SF OF TOPSOIL AND BE PERMANENTLY SEEDED. SOIL STABILIZATION BLANKET SHALL BE APPLIED TO
ALL AREAS WITH A FINISHED GRADE OF 6/1 OR GREATER. ALL METHODS AND MATERIALS FOR SOIL
SEDIMENT TRAP AND SEDIMENT BASIN MAINTENANCE NOTES WET DETENTION POND OPERATION & h AINTENANCE STABILIZATION BLANKET SHALL BE IN ACCORDANCE WITH THE NORTH CPLACE A EROSION AND /
SEDIMENTATION CONTROL MANUAL SODDING MAY BE SUBSTITUTED IN PLACE OF SOIL STABILIZATION
BLANKET.
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1. INSPECT TEMPORARY SEDIMENT TRAPS AND SEDIMENT BASINS AT LEAST WEEKLY AND AFTER A. THE FOLLOWING TASKS SHALL BE PERFORMED AFTER EVERY ;UN -OFF PRODUCING RAINFALL EVENT, OR MONTHLY AS
EACH SIGNIFICANT(i OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. A MINIMUM. 3. THE BOTTOMBASIN THEDIDY UP TOF18 INCHE THE WATER SURFACECONSTRUCTION SEQUENCE FOR WET POND
SLOPE SABO REPLACED WITH A
ELEVATION BE OVER END
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1. REMOVE DEBRIS FROM TRASH RACK. OF SILTY CLAY CL UNLESS OTHERWISE DIRECTED BY THE GEOTECHNICAL ENGINEER. THE SILTY
2. WHEN SEDIMENT REACHES ONE-HALF THE DESIGN DEPTH OF THE TRAP OR BASIN, REMOVE ( ) 1. CLEAR AREA FOR POND AND POND DAM.
SEDIMENT AND RESTORE TRAP OR BASIN TO ITS ORIGINAL DIMENSIONS. PLACE SEDIMENT THAT CLAY LAYER SHALL BE PUKED ON APPROVED SUBGRADES IN MAXIMUM 8 INCH LOOSE LAYER LIFTS
i
IS REMOVED IN A DESIGNATED DISPOSAL AREA. 2. CHECK/CLEAR OBSTRUCTIONS FROM ORIFICE OUTLET. AND SHALL BE COMPACTED TO AT LEAST 90 PERCENT OF THE STANDARD PROCTOR COMPACTION. 2. BEGIN CONSTRUCTION OF POND DAM BEGINNING WITH THE INSTALLATION OF THE
COMPACTION SHALL BE ON THE WET SIDE OF THE OPTIMUM MOISTURE CONTENT.
3. REPLACE ANY PART OF THE GRAVEL FACING THAT IS IMPAIRED BY SEDIMENT. 3. CHECK POND SIDE SLOPES AND DAM EMBANKMENT. REMOVE TRASH AND REPAIR ERODED AREAS. DAM'S CUT OFF TRENCH AS SHOWN ON C2.1 OF THE APPROVED DRAWINGS.
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4. ALL BASINS SHALL FUNCTION AS A TEMPORARY SEDIMENT BASIN DURING CONSTRUCTION. UPON
4. CHECK SEDIMENT LEVELS BEHIND BAFFLES. REMOVE SE IMENT WHEN DEPTH REACHES 1/2 BAFFLE HEIGHT. COMPLETION OF CONSTRUCTION, THE BASINS SHALL BE CLEANED OF SEDIMENT AND CONVERTED TO 3. CONTINUE WITH THE DAM CONSTRUCTION, AND INSTALL THE DAM'S RISER AND
4. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY TO ENSURE IT IS A MINIMUM OF 1.5 FEET A STROMWATER MANAGEMENT FACILITY. BARREL KIT AND ANTI SEEP PLATES AS THE GRADING PROGRESSES. COMPACT
BELOW THE LOW POINT OF THE EMBANKMENT. B. THE FOLLOWING TASKS SHALL BE PERFORMED EVERY THREE IONTHS. SOILS WITHIN DAM AND AROUND BARREL AS INDICATED WITHIN THE POND DETAILS
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5. THE CONTRACTOR SHALL ENGAGE THE SERVICES OF A STATE REGISTERED LAND SURVEYOR TO AND WET POND CONSTRUCTION NOTES.
5. IMMEDIATELY FILL ANY SETTLEMENT OF THE EMBANKMENT TO SLIGHTLY ABOVE DESIGN GRADE. 1. INSPECT STORMWATER COLLECTION SYSTEM (PIPING, STR ICTURES, SWALES) FOR PROPER OPERATION. REMOVE PROVIDE AN AS -BUILT AND VOLUME COMPUTATIONS OF THE STORMWATER MANAGEMENT FACILITY
TRASH, SEDIMENTS & OBSTRUCTIONS FROM SYSTEM. AND SHALL PROVIDE THE AS -BUILT TO THE OWNER AND ENGINEER. 4. INSTALL OUTLET STABILIZATION DEVICE AT THE POND BARREL OUTLET AS INDICATED
6. ANY RIP -RAP DISPLACED FROM THE SPILLWAY MUST BE REPLACED IMMEDIATELY. ON THE PLANS AND STABILIZE.
j
2. INSPECT RIPRAP ENERGY DISSIPATORS FOR EROSION AN UNDERCUTTING. REPAIR AS REQUIRED. 6. THE BERMS AROUND THE POND(S) SHALL BE CONSTRUCTED OF COMPACTED STRUCTURAL FILL
CLASSIFIED AS SM, SM-SP, SP, SC OR BETTER CONTAINING LESS THAN 30% BY WEIGHT SILT OF 5. ONCE THE POND DAM IS CONSTRUCTED AND THE POND AREA HAS BEEN EXCAVATED
3. REPAIR ERODED AREAS AND RESEED BARE SPOTS THIRD IGHOUT, TO REDUCE SEDIMENT GENERATION. CLAY AND FREE OF DEBRIS. THIS MATERIAL SHALL BE PLACED ON APPROVED SUBGRADES AND IN AS INDICATED ON THE PLANS, STABILIZE DISTURBED AREAS AND DAM FACE WITHIN
HORIZONTAL LIFTS NOT EXCEEDING 8 INCHES IN LOOSE THICKNESS MOISTURE CONDITIONED TO WITHIN 14 DAYS OF REACHING FINISHED GRADE.
STORMWATER NOTES 4. INSPECT POND OUTLET DEVICES AND CHANNEL DOWNSTF :AM OF DAM. REPAIR UNDERCUTTING OR DAMAGE TO -1% TO +3% OF OPTIMUM MOISTURE CONTENT AND COMPACTED TO MINIMUM OF 95% OF THE
CHANNEL LINING. MAXIMUM DENSITY OBTAINED IN ACCORDANCE ASTM D698 STANDARD PROCTOR METHOD. SOILS 6. SET UP POND AS A TEMPORARY SEDIMENT BASIN FOR EROSION CONTROL PURPOSES.
i
SHALL BE FREE OF ORGANICS AND ANY PARTICLES LARGER THAN 2" IN DIAMETER. EACH LIFT OF
I
1. THE ENGINEER'S CERTIFICATION OF COMPLETION WALL BE REQUIRED PRIOR TO THE 5. CHECK DOWNSTREAM DAM FACE FOR EVIDENCE OF SEEF tGE OR OVERTOPPING. BERM SHALL BE SCARIFIED PARALLEL TO THE BERM CREST AXIS TO A DEPTH OF 3 INCHES BEFORE 7. AS GRADING ON SITE PROGRESSES AND STORMDRAIN NETWORK IS INSTALLED,
3 A
A
FINAL PLAT OF CERTIFICATE OF OCCUPANCY. THE STORMWATER CONTROL IS TO BE PLACEMENT OF THE COMPACTED STRUCTURAL FILL. STRUCTURAL FILL SHALL BE ANALYZED AND INSTALL THE REQUIRED OUTLET STABILIZATION STRUCTURES WITHIN THE POND AS
INDICATED ON THE PLANS.
A
INSPECTED TO ENSURE IT IS FUNCTIONING AS DESIGNED AND HAS FULL DESIGN C. THE FOLLOWING TASKS SHALL BE PERFORMED EVERY SIX MO THS. APPROVED BY THE PROJECT GEOTECHNICAL ENGINEER PRIOR TO USE ON EMBANKMENT. AT ALL
-
VOLUME PRIOR TO ISSUANCE OF THE FINAL CERTIFICATE OF OCCUPANCY. TIMES DURING THE CONSTRUCTION OF BMP EMBANKMENT, THE CONTRACTOR SHALL ENSURE THAT
1. INSPECT INTERIOR OF OUTLET STRUCTURE. REMOVE ACC UMULATED SEDIMENTS OR OBSTRUCTIONS. THE GEOTECHNICAL INSPECTOR IS PRESENT AND OBSERVING THE INSTALLATION. 8. ONCE BUILDING CONSTRUCTION IS COMPLETE AND ALL AREAS DRAINING TO POND
"
2. THE PROPERTY OWNER IS RESPONSIBLE FOR MAINTAINING THE STORMWATER HAVE BEEN STABILIZED WITH PERMANENT VEGETATION, CLEAN OUT WET POND AND
CONTROL ACCORDING TO THE APPROVED MAINTENANCE PLAN AND DIRECTION OF 2. CHECK POND DEPTH AT VARIOUS LOCATIONS. REMOVE ACCUMULATED SEDIMENTS IF DEPTH IS LESS THAN 3/4 7. BEFORE THE PLACEMENT OF THE COMPACTED STRUCTURAL FILL FOR THE BERM THE SUBGRADES FINE GRADING MAKING SURE POND BOTTOM, SHELF, AND DAM ARE AT THE
THE TOWN OF KERNSERSVILLE. SPECIFIED. SHALL BE INSPECTED BY A GEOTECHNICAL ENGINEER. UNSUITABLE SOILS CONTAINING BUILDING ELEVATIONS AS INDICATED ON THE APPROVED DRAWINGS.
u
RUBBLE AND OTHER DEBRIS SHALL BE REMOVED FORM THE BERM AREA. SUITABLE, COMPACTED
°
3. THE TOWN OF KERNSERSVILLE AND THEIR ASSIGNS HAVE RIGHT TO ACCESS THE 3. CLEAR TREES AND SAPLINGS FROM DAM EMBANKMENT. BERM FILL SUBGRADE SHALL BE SCARIFIED PARALLEL TO THE BERM CREST AXIS TO A DEPTH OF 3 9. INSTALL STONE FOREBAY BAFFLE AND REMOVE E&SC BAFFLES FROM POND.
STORMWATER CONTROL FOR INSPECTIONS OR MAINTENANCE, AS NECESSARY. INCHES BEFORE PLACEMENT OF THE COMPACTED STRUCTURAL FILL..
D. GENERAL 10. CLEAN ALL RIP RAP ENERGY DISSIPATERS INTO POND AND BELOW POND DAM OF
8. THE GEOTECHNICAL ENGINEER SHALL DETERMINE MATERIALS SUITABLE FOR STRUCTURAL FILL. ANY SEDIMENT, REPLACING RIP RAP IF REQUIRED.
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4. ALL NECESSARY APPROVALS HAVE BEEN/WILL BE OBTAINED FROM THE
1. MOW POND SIDES REGULARLY TO MAINTAIN MAXIMUM GF LSS HEIGHT OF 6".
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STATE/CORPS FOR ANY WETLAND DISTURBANCE, STREAM CROSSING/DISTURBANCE. 9. SEED ALL SIDE SLOPES AND EMBANKMENTS PER THE SEEDING SCHEDULE SHOWN ON SHEET C2.1 11. DISPOSE OF THE SEDIMENT REMOVED FROM THE POND BOTTOM WITHIN AN APPROVED
i
5. IN ACCORDANCE WITH GS-143-215.25A AND 143-215.26 OF THE NC DAM SAFETY 2. REMOVE VEGETATION WHICH GROWS WITHIN POND, EXCEF F WETLAND GRASSES ALONG PERIMETER. LOCATION.
10. STABILIZE SIDE SLOPES AND EMBANKMENTS GREATER THAN 3/1 PER THE NCDENR EROSION AND
LAW AND ADMINISTRATIVE CODE 15A NCAC 2K.2-2 THE STATE DAM SAFETY 3. MONITOR POND DRAWDOWN TIME. IF DRAWDOWN EXCEEI 3 TABULATED TIME, REMOVE OBSTRUCT1ONS FROM RISER SEDIMENTATION CONTROL MANUAL 12. CLOSE 8" DRAIN VALVE AND REMOVE SKIMMER FROM POND.
d
OFFICE HAS BEEN/WILL BE CONTACTED FOR DETERMINATION OF THE HAZARD ORIFICE.
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CLASSIFICATION OF THE PROPOSED DAM. 11. INSTALLATION SHALL BE IN GENERAL CONFORMANCE NTH NCDENR STATE STORMWATER MANUAL 13. PLANT VEGETATED SHELF AS REQUIRED.
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4. INSPECT EMERGENCY SPILLWAY. REPAIR ERODED AREAS AND REMOVE OBSTRUCTIONS. LATEST EDITION.
14. ALLOW POND TO FILL TO NORMAL POOL ELEVATION FROM STORM RUNOFF.
2
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trig design roup
Architecture I Engineering I Interior Design
Triad Design Group, P.0
4807-C Koger Boulevard
Greensboro, NC 27407
Telephone [phone]
Facisimile 336 218-8010
www.triad-designgroup.com
NC Architecture Reg. 50709
NC Engineering Lic. C-1108
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PROFESSIONAL OF RECORD:
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Mk Date Description
Revisions
DETENTION
POND PLAN &
DETAILS
155UEP
FOR PERMIT
Date: MAY 26, 2011
Drawn: LNS check: LAH
Job Number: 11-025
Sheet:
C2.1
,

1
2
3
4
5
MIN. 10 MIL
10.00' ^ POLYETHYLENE
o
(MIN.) o LINER
SANDBAG
SANDBAG
CONSTRUCTION 8F'ECIFICATIONS TEEL FENCE POST
O O O 12 1/2 GA. SEE SPACM NOTE NOTES
I. CLEAR AREA OF ALL DEBRIS THAT MIGHT HINDER 1 MTEI�EDIATE - SEDIMENT CONTROL STONE SHALL
EXCAVATION AND DISPOSAL OF SPOIL. A A 0 0 1 WIREs,TYP. HOG WIRED TO POST (OPTIONAL) BE No- 5 OR No. 51
2. INSTALL THE CLASS B OR CLASS I RIP RAP IN A
SEMI -CIRCLE AROUND THE PIPE INLET. THE STONE � WIRE MESH SHALL BE HARDWARE
PIPE O
SHOULD BE BUILT UP HIGHER ON EACH END WHERE IT FILTER FABRIC CLOTH 23 GAUGE MM, AND SHALL
TIES INTO THE EMBANKMENT. THE MINIMUM CREST WIDTH n HAVE 1/4" MESH OPENMG5.
SECTION A -A
O O
OF THE RIPRAP SHOULD BE 3 FEET, WITH A MINIMUM FLOW O A A 1
BOTTOM WIDTH OF II FEET. THE MINIMUM HEIGHT BHOILD O Z NOT TO SCALE W 9 TOP OF MESH SHALL BE A MINIMUM
Jrj-6T
BE 2 FEET, BUT ALSO 1 FOOT LOWER THAN THE SHOULDER O M O O inONE FILL SLOPE OOr- ONE R ANY DIVERSION BELOW
POMT�LDER
D '- v0
D
OFTHE OR DIVERSIONS.
THICK
D3.
T LAY a STEEL POST SHALL BE 5 FT. IN
A I FOOT THICK LAYER OF NGDOT 5 OR 51 STONESHOULD
BE PLACED ON THE OUTSIDE SLOPE OF THE2' DEEP
RIPRAP. I;ONCRETI GRADE
O MK AND BE OF THE SELF -FASTENER
4. THE BEDIMIENT STORAGE AREA SHOULD BE EXCAVATED 0 -
,.
AROUND THE OUTSIDE OF THE STONE HORSESHOE 18NASHOUTE
STRUCTURAL STONE O (D (D (D (D a WIRE AND FABRIC TO BE
INCHES BELOW NATURAL GRADE TRENCHED
CLASS '5' STONE (TYPE A) ELEVATION TRENCHED 8 MIN.- POST SPACING SHALL BE A MAXIMUM
AREA HAS STA51LIZED 'A'
5. WHEN THE CONTRIBUTING BEEN CLASS STONE (TYPE 5) INTO AND BACK- TR G FABRIC
MIN. 10 MIL
TTHWFA
AREA HAS BEEN STABILIZED, FILL DEPRESSION, INSTALL FILLED WITH AND WIRE FENCE OAR 6STRENGTH
DROP INLET, AND ESTABLISH FINAL GRAD ELEVATIONS, SEDIMENT CONTROL STONE POLYETHYLENE
COMPACT AREA PROPERLY AND STABILIZE WITH (NCDOT 03 OR 051) FENCE
LINER POST METAL - V LONG, TRIANGLE STEP
GROUND COVER
PLAN MAX PLACEMENT OF POSTS TO SECTION - EXCAVATE SEDIMENT STORAGE V DEEP
DIVERSION POI ROADWAY SHOULDER NOT TO SCALE BE V APART. AND 4' RADIUS AROUND ALL INLETS
PLAN SIGN WIRE 32" MIN. WIDTH s1UIRE,
II' MIN. Im GAUGE LINEWIRWIRE
�
12" MIN. �`'� 12" MIN. Handling of Concrete Notes: NOT TO SCALE FABRIC PRDPEX (BY AMOCO) OR EQUAL
�3'
STONE 03 WASHED STONE, TO BE PLACED
I I
1. Concrete materials on -site, including excess concrete, must be controlled and managed to avoid contact 8" DEEP
��
1n FLOW with surface waters, wetlands or buffers. No concrete or cement slurry shall be discharged from the site. SPACING PLACEMENT OF POSTS USING HOGWIRE TO BE 8' APART.
PLACEMENT OF POSTS WITHOUT HOGWIRE TO BE b' APART.
11' MIN 2' 18" M11N
SEDIMENT CONTROL D 2. All liquid and solid wastes generated by concrete washout operations must be contained in a leak -proof
STONE (NCDOT 9 15" PIPE containment facility or impermeable liner. Plastic lining material should be a minimum of 10 mil SILT FENCE
OR 9T) polyethylene sheeting, or similar -strength material, and free of holes or tears that compromise the
SECTION A -A impermeability of the material. NO SCALE
3. All washout operations must be at least 50 feet from storm drains or water bodies unless individual site
difficulties make this requirement impractical. A reduction of this distance requirement will be allowed on
a case -by -case basis if the permitting authority determines that the washout facility with a reduced buffer
PIPE INLET PROTECTION will adequately protect the water quality in adjacent streams. POST
NO SCALE 4. Washout of concrete trucks shall be performed in designated areas only.
5. A sign must be installed adjacent to each washout facility to inform concrete equipment operators about
j
the requirement to use the facility. SILTFENCE SILTFENCE
NOTE
6. The hardened residue from the concrete washout will be disposed of in the same manner as other
non -hazardous construction waste materials or may be broken up and used on site as deemed appropriate STRUCTURAL STONE SHALL BE
(CLASS 59 STONE FOR EROSION
CCOMPACTED
by the contractor. Maintenance of the washout is to include removal of hardened concrete. Facility shall CONTROL PURPOSES.
r+
l�
SOIL 2' MIN. have sufficient volume to contain all the concrete waste resulting from washout and a minimum freeboard SEDIMENT CONTROL STONE SHALL
of 12 inches. Facility shall not be filled beyond 95% capacity and shall be cleaned out once 75%full unless a BE No. 5 OR No. 51 STONE TOP VIEW
new facility is constructed. 2' EXTEND WIRE FENCE
ACROSS OUTLET OPENING
F 7. Portable, removable containers may be used as above grade concrete washouts, provided truck operators SILTFENCE SILTFENCE
18" MIN.
'• • . are able to wash individual chute sections out over the washout.
15' MR
\\j\\\ \\�/,��\i\�\\!\\\ \\�� ��\/\ / \\� 8. If stored liquids have not evaporated and the washout is nearing capacity, the liquids may be vacuumed
and disposed of off -site in a legally acceptable manner or disposed of on -site in a manner and location that
6' TYP it will not reach streams and other bodies of water. On -site pits and other infiltration devices will be 2 E
- acceptable if the device is designed to infiltrate the anticipated volume of water and approved prior to its
��use
by the permitting authority.
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CONSTRUCTION SPECIFICATIONS CONCRETE WASHOUT
MENT STRUCTURAL1.
REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS, AND OTHER NO SCALE srONE
STROL
OBJECTIONAL MATERIAL.
2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN
REQUIREMENTS. CROSS SECTION FRONT VIEW
3. ENSURE THAT THE TOP OF THE DIKE IS NOT LOWER AT ANY POINT THAN THE
DESIGN ELEVATION PLUS THE SPECIFIED SETTLEMENT. STONE OUTLET
4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE
REGRADING AND CLEANOUT. PIPE OUTLET TO FLAT AREA - NO SCALE
5. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT WILL NO WELL-DEFINED CHANNEL CONSTRUCTION SPECIFICATIONS
REMAIN IN PLACE LESS THAN 30 WORKING DAYS. 1. ENSURE THAT THE SUB -GRADE FOR THE FILTER AND
RIP -RAP FOLLOWS THE REQUIRED LINES AND GRADES
SHOWN ON THE PLAN. COMPACT ANY FILL REQUIRED IN
MAINTENANCE o 0 o THE SUB -GRADE TO THE DENSITY OF THE SURROUNDING
A A UNDISTURBED MATERIAL LOW AREAS IN THE SUB -GRADE
INSPECT TEMPORARY DIVERSION ONCE A WEEK AND AFTER EVERY RAINFALL. t ON UNDISTURBED SOIL MAY ALSO BE FILLED BY
IMMEDIATELY REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR THE INCREASING THE RIP -RAP THICKNESS.
DIVERSION RIDGE. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS 2. THE RIP -RAP AND GRAVEL FILTER MUST CONFORM TO
THE SPECIFIED GRADING LIMITS SHOWN ON THE PLAN.
NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE 3. FILTER CLOTH, WHEN USED, MUST MEET DESIGN
RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL END o 0 o REQUIREMENTS AND BE PROPERLY PROTECTED FROM
APPROPRIATELY STABILIZE IT. PLAN PINCHING OR TEARING DURING INSTALLATION. REPAIR
ANY DAMAGE BY REMOVING THE RIP -RAP AND PLACING
B
TEMPORARY DIVERSION BERM La ANOTHER PIECE OF FILTER CLOTH OVER THE DAMAGED
AREA. ALL CONNECTING JOINTS SHOULD OVERLAP SO
B
B
THE TOP LAYER IS ABOVE THE DOWNSTREAM LAYER A
NTS MINIMUM OF 1 FOOT. IF THE DAMAGE IS EXTENSIVE, OP9
REPLACE THE ENTIRE FILTER CLOTH.
J
4. RIP -RAP MAY BE PLACED BY EQUIPMENT, BUT TAKE 00
J Do,
CARE -- -- ---- CARE TO AVOID DAMAGING THE FILTER. Q A�jN
SECTION A -A FILTER 5. THE MINIMUM THICKNESS THE RIPRAP SHOULD BE
BLANKET 1.5 TIMES THE MAXIMUM STONE DIAMETER.
6. RIP -RAP MAY BE FIELD STONE ROUGH QUARRY
STONE. IT SHOULD BE HARD, ANGULAR, HIGHLY 7
PIPE OUTLET TO WELL-DEFINED
= WEATER-RESISTANT AND WELL GRADED. 6" MIN DEPTH J
METAL POSTS CHANNEL 7. CONSTRUCT THE APRON ON A ZERO GRADE WITH NO
OVERFILL AT THE END. MAKE THE TOP OF THE RIP -RAP 2-3" COARSE AGGREGATE
1.5' INTO GROUND AT THE DOWNSTREAM END LEVEL WITH THE RECEIVING
AREA OR SLIGHTLY BELOW IT. GEOTEXTILE FABRIC
F'
x B. ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH TO STABILIZE FOUNDATION
THE RECEIVING STREAM AND PREFERABLY STRAIGHT DIVERSION
- THROUGHOUT ITS LENGTH. IF A CURVE IS NEEDED TO FIT RIDGE
s 1'' SITE CONDITIONS, PLACE IT IN THE UPPER SECTION OF GRADE., >2X
` ali. THE APRON. 15, PUBLIC ROAD
1 i = 9. IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL
DISTURBED AREAS WITH VEGETATION (PRACTICES 6.10
GALVANIZED _ 'TEMPORARY SEEDING', AND 6.11, 'PERMANENT SEEDING').
HARDWARE WIRE ` GEOTEXTILE FABRIC
EXTENDS TO TOP OF 6" PLAN TO STABILIZE FOUNDATION
BOX (3/8- MESH) INSTALLATION:
xx
x I. REMOVE ALL VEGETATION AND OTHER OBJECTIONABLE MATERIAL FROM THE
. FOUNDATION AREA. GRADE AND CROWN FOUNDATION FOR POSITIVE DRAINAGE.
Fxlk-x",
2. IF THE SLOPE TOWARDS THE ROAD EXCEEDS 2Y, CONSTRUCT A RIDGE, 6-8" HIGH
,X
WITH 3:1 SIDE SLOPES, ACROSS THE FOUNAD11ON APPROXIMATELY 15 FT FROM
THE ENTRANCE TO DIVERT RUNOFF AWAY FROM THE PUBLIC ROAD.
3. PLACE GEOTEXTILE FABRIC ON GRADED FOUNDATION TO IMPROVE STABILITY,
16"
.di, - - ESPECIALLY WHERE WET CONDITIONS ARE ANTICIPATED.
#57 __1 .::. _ II -I k11-II-I 4. PLACE STONE TO DIMENSIONS AND GRADE SHOWN ON PLANS. LEAVE SURFACE
0 III -I-- -=--=____- -III-I qII
WASHED Illl llll�lllldl II -III II -III -II Ilgl�lll'- 11=j l III= II 1��5FI� III=1 SMOOTH AND SLOPED FOR DRAINAGE.
0
STONE - 5. DIVERT ALL SURFACE RUNOFF AND DRAINAGE FROM THE STONE PAD TO A SEDIMENT
SECTION B-B FILTER TRAP OR BASIN.
BLANKET 6. INSTALL PIPE UNDER PAD IF NEEDED TO MAINTAIN PROPER PUBLIC ROAD DRAINAGE.
NOTES: MAINTENANCE:
A
1. Lo IS THE LENGTH OF RIP -RAP APRON 1. INSPECT ENTRANCE/EXIT PAD AND SEDIMENT DISPOSAL AREA AT LEAST WEEKLY AND
li' 2. d=1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT LESS THAN 6". AFTER EACH SIGNIFICANT (1/2" OR GREATER) RAIN EVENT OR HEAVY USE.
A
3. IN A WELL-DEFINED CHANNEL EXTEND THE APRON UP ON THE CHANNEL 2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL
- BANKS TO AN ELEVATION OF 6" ABOVE THE MAXIMUMTAILWATER DEPTH 3. TOPDRESS WITH CLEAN STONE AS NEEDED.
MAINTENANCE OR TOP OF THE BANK, WHICHEVER IS LESS. 4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROAD.
INSPECT INLETS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT �1 INCH OR 4- A FILTER BLANKET OR FILTER FABRIC SHOULD BE INSTALLED BETWEEN 5. REPAIR ANY BROKEN ROAD PAVEMENT IMMEDIATELY.
( THE RIP -RAP AND SOIL FOUNDATION.
GREATER) RAINFALL EVENT. CLEAR THE MESH WIRE OF ANY DEBRIS OR OTHER -
OBJECTS TO PROVIDE ADEQUATE FLOW FOR SUBSEQUENT RAINS. TAKE CARE NOT TO MAINTENANCE
INSPECT RIPRAP OUTLET STRUCTURES WEEKLY AND AFTER SIGNIFICANT
DAMAGE OR UNDERCUT THE WIRE MESH DURING REMOVAL. REPLACE STONE AS NEEDED. (X INCH OR GREATER) RAINFALL EVENTS TO SEE IF ANY EROSION TEMPORARY CONSTRUCTION ENTRANCE
AROUND OR BELOW THE RIPRAP HAS TAKEN PLACE, OR IF STONES
HAVE BEEN DISLODGED. IMMEDIATELY MAKE ALL NEEDED REPAIRS TO NTS
STANDARD CATCH BASIN / YARD INLET PREVENT FURTHER DAMAGE.
WIRE AND STONE INLET PROTECTION RIP -RAP OUTLET PROTECTION
NTS NTS
1
2
3 1 4
5
triaddesipgrOUp
Architecture I Engineering I Interior Design
Triad Design Group, P.0
4807-C Koger Boulevard
Greensboro, INC 27407
Telephone [phone]
Facisimile 336 218-8010
www.tdad-designgroup.com
NC Architecture Reg. 50709
NC Engineering Lic. C-1108
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May 26, 2017
PROFESSIONAL OF RECORD:
MATTHEW W. JOHNSON, P.E.
NOVEMBER 15, 2016
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Mk Date Description
Revisions
EROSION
CONTROL
DETAILS
ISSUED
FOR PERMIT
Date: MAY 26, 2017
Drawn: LNS Check: LAH
Job Number: 17-025
Sheet:
C2A