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HomeMy WebLinkAboutSW4210901_Plansheet - Misc. Detail_20211117 2' COMPACTED SOIL P E R M A N E N T S E E D I N G S MIN. PLANTS & MIXTUREPLANTING RATE/ACREPLANTING DATES Tall Fescue100-150 lbs.Aug. 15 - Oct. 15 (Low Maintenance)Feb. 15 - May I NORTH AMERICAN Tall Fescue200-250 lbs.Aug. 1 - Oct. 15 Waterways andFeb. 15 - May 1 GREEN Lawns (High Maint.) 6' TYPICAL Blend of two turf-200-250 lbs.Aug. 15 - Oct. 15 type tall FescuesFeb. 15 - May 1 DIVERSION SWALE (90%) and two or more improved N.T.S. Kentucky bluegrass varieties (10%) MAINTENANCE (high maintenance) INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY RAINFALL. IMMEDIATELY REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED. WHEN Tall Fescue100 lbs.Feb. 15 - May I THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL andandAug. 15 - Oct. 15 ROUND LEVEL AND APPROPRIATELY STABILIZE IT. Kobe or Korean20-25 lbs. Lespedeza1/ Tall Fescue and50 lbs. Nov. 1 - Feb. I Sericea Lespedeza60 lbs.(Unscarified) COMPACTED SOIL Tall Fescue and60 lbs.July and August German Millet orand Sudangrass2/30 lbs. Tall Fescue70 lbs.Nov. 1 - Jan. 30 andand Ryegrain2/25 lbs. Common Bermudagrass8 lbs. (hulled)April 15 - June 30 15-20 lbs. (unhulled)Feb. 1 - March 30 INSTALL MATTING TO STABILIZE IMMEDIATELY AFTER CLEAN WATER DIVERSION SWALE INSTALLATION 1/For spring seedings, use Scarified Lespedeza seed. For late fall and wint eseredings, use unscarified seed. USE NORTH N.T.S. AMERICAN GREEN 2/Annuals such as Millet, Sudangrass and Ryegrain must be kept at 10-12" maximum height. DS75 OR EQUAL NOTES: 1. DIVERSION TO BE USED UPSLOPE OF A CONSTRUCTION SITE TO PREVENT STORM RUNOFF FROM ENTERING THE DISTURBED AREA. 2. IMMEDIATELY LINE AND STABILIZE BEFORE ANY DOWNSLOPE GRADING BEGINS STABILIZATION METHOD IS BASED ON PREPARATION VELOCITY OF OFFSITE DRAINAGE. 3. DIVERSIONS SHOULD ONLY BE USED FOR DRAINAGES 5 ACRES OR LESS. Prepare seedbed by ripping, chiseling, harrowing or plowing to depth of six inches so as to produce a loose, friable surface. 1.5 ft 4. ANY SEDIMENT LADEN WATER PRIOR TO STABILIZATION OF THE DIVERSION MUST BE DIVERTED INTO AN APPROVED Remove all stones, boulders, stumps or debris from the surface which would prohibit germination or plant growth. EROSION AND SEDIMENT CONTROL BMP. 3:1 TALL FESCUE TO BE USED PER 3:1 FLOW DEPTH VARIES Incorporate into the soil 800 to 1,000 pounds of 10-10-10 fertilizer plus 500 pounds of twenty percent (20%) superphosphate SEEDING DETAIL UNLESS OTHERWISE per acre and two tons of dolomitic lime per acre unless soil tests indicate that a lower rate of lime be used. SEE CHANNEL TABLE NOTED ON THE SWALE CHART. SEE SWALE CHART FOR SWALES THAT Mulch after seeding with 1.5 tons of grain straw per acre and either crimp straw into soil or tack with liquid asphalt at 400 WILL REQUIRE TEMPORARY LINING gallons per acre or emulsified asphalt at 300 gallons per acre. TYPICAL CHANNEL CROSS-SECTION: T E M P O R A R Y S E E D I N G S N.T.S. SEEDING MIXTURE SEEDING RATE PLANTING DATES Rye Grain and 120 lbs.Jan. 1 - May 1 Kobe Lespedeza 50 lbs. German Millet orMay 1 - Aug. 15 40-50 lbs. Sudan Grass Rye Grain120 lbs.Aug. 15 - Dec. 30 (oats my be substituted before Oct. 1 or wheat from Oct. 1-Nov. 15) D 2"-5"2"-5" Aug. 15 - Nov. 30 40 lbs. Annual ryegrass (5-12.5cm)(5-12.5cm) May 1 - Aug. 15 5 lbs. Weeping Lovegrass -1/ 1.5'(0.45m) 3' 1/ Weeping Lovegrass is a perennial grass but is included here because of it's adaptability to poor soil conditions and drought tolerant. (0.9m) 3.3' PREPARATION (1m) 1.6' Prepare seedbed by ripping, harrowing, chiseling, or plowing to a depth of at lease six inches that produces a loose friable surface. Remove all stones, boulder, stumps, or debris from the surface which would prohibit germination or plant growth. (0.5m) Apply 750-1000 lbs. of 10-10-10 fertilizer and up to 2 tons of dolomitic lime per acre. (Note: lime may not be required if a soil test indicates a pH of 6.5 or higher) Mulch after seeding with 1.5 tons of grain straw per acre and crimp straw into the soil or tack with liquid asphalt at 400 gallons per acre or emulsified asphalt at 300 gallons per acre. CONSTRUCTION SEQUENCE GENERAL PLAN NOTES 1. SOIL EROSION CONTROL DEVICES MUST BE INSTALLED INITIALLY AFTER THE GRADING PERMIT IS ISSUED AND PRIOR TO CLEARING AND GRUBBING. 1. AFTER OBTAINING PLAN APPROVAL AND BEFORE CONSTRUCTION, OWNER SHALL OBTAIN AN NCG01 PERMIT FOR THE PROJECT. THE PLANS, NCG01 2.3 Anchors per SQ.YD. 2. DURING THE DEVELOPMENT OF THE SITE, THE PERSON RESPONSIBLE FOR THE LAND-DISTURBING ACTIVITY SHALL INSTALL AND MAINTAIN ALL TEMPORARY AND PERMANENT EROSION AND SEDIMENTATION CONTROL MEASURES AS REQUIRED BY THE (2.7 Anchors per SQ. M.) APPROVED PLAN OR BY ANY PROVISION OF THE ENGINEER. ADDITIONAL DEVICES WILL BE REQUIRED IF NECESSARY.PERMIT, AND EROSION CONTROL PERMIT SHALL BE POSTED ON THE PROJECT VIA AN INSPECTION BOX. THE INSPECTION BOX SHALL BE VISIBLE AND CONTAIN REQUIRED 3. IF FILL MATERIALS ARE BEING BROUGHT ONTO THIS PROPERTY OR IF WASTE MATERIALS ARE TAKEN FROM THIS PROJECT, THIS INFORMATION MUST BE DISCLOSED AND SHOWN ON THE EROSION CONTROL AND GRADING PLAN. BORROW AREAS AND INSPECTION REPORTS ALONG WITH RAIN GAUGE. DUMP SITES ARE CONSIDERED TO BE PART OF THIS PROJECT. 2. SCHEDULE PRE-CONSTRUCTION MEETING WITH OWNER, ENGINEER AND 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, THE IMMEDIATE SEEDING OF DISTURBED EASEMENT AREAS AFTER UTILITIES ARE 2.5 FEET CONTRACTOR TO REVIEW PLANS AND CONSTRUCTION SEQUENCE. NOTIFY NCDEQ INSTALLED WILL ELIMINATE MANY PROBLEMS. EASEMENT AREAS WHICH CROSS OR ARE ADJACENT TO WATER COURSES SHOULD RECEIVE SPECIAL CONSIDERATION. EROSION OFFICE WITH START DATE OF CONSTRUCTION. 5. SIDE DITCHES 2% OR STEEPER SHALL BE RIP-RAPPED; OR SEEDED AND STABILIZED WITH EXCELSIOR MATTING (OR OTHER APPROVED MATERIAL); OR STABILIZED BY ANY OTHER METHOD APPROVED BY THE NCDEQ EROSION CONTROL INSPECTOR. 3. INSTALL TEMPORARY CONSTRUCTION ENTRANCE. NOTES: 4. CUT TREES TO INSTALL EROSION CONTROL DEVICES. 6. THE ANGLE FOR GRADED SLOPES AND FILLS SHALL BE NO GREATER THAN THE ANGLE THAT CAN RETAIN VEGETATION COVER OR OTHER ADEQUATE 1. ALL SIGN SHALL BE MADE USING TYPE III EROSION CONTROL DEVICES OR STRUCTURES. IN ANY EVENT, SLOPES LEFT EXPOSED WILL, WITHIN 21 CALENDAR DAYS OF COMPLETION OF ANY 5. INSTALL SEDIMENT BASINS AS SHOWN ON PLAN. SHEETING. STOP PHASE OF GRADING, BE PLANTED OR OTHERWISE PROVIDED WITH TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR STRUCTURES 6. CUT REMAINDER OF TREES AND GRUB ALL STUMPS LOCATED ON SITE. 2. ALL "STOP" SIGNS SHALL BE 30" x 30". SUFFICIENT TO RESTRAIN EROSION. 3. ALL SIGNS WILL BE PLACED ON EACH 7. STRIP THE REMAINDER OF THE SITE. DISPOSE OF THE STRIPPING IN NONSTRUCTURAL 7. THE OWNER(S) IS RESPONSIBLE FOR THE LONG TERM MAINTENANCE OF THE GROUNDCOVER ON THE PROPERTY. GROUNDCOVER MUST BE MAINTAINED TO A DEGREE THAT PREVENTS SOIL EROSION AND SEDIMENTATION AT ALL TIMES. ROAD IN ACCORDANCE WITH THE MANUAL AREAS WITHIN PROJECT DISTURBED LIMITS ON UNIFORM TRAFFIC CONTROL DEVICES 8. GRADE STREETS AND INSTALL THE STORM PIPES. INSTALL INLET PROTECTION AS SOON AND THE APPROVED PLANS. AS POSSIBLE. INSTALL STREET TYPICAL SECTION AND ASPHALT. EROSION CONTROL NOTES: 4. A FINAL INSPECTION LETTER WILL NOT 9. AS CUT AND FILL AREAS ARE COMPLETED, SEED AND MULCH PER SITE STABILIZATION BE ISSUED UNTIL ALL REQUIRED SIGNS ARE PROPERLY INSTALLED TO THE REQUIREMENTS 1.THE EROSION AND SEDIMENTATION CONTROL MEASURES AND DEVICES SHOWN ON THE DRAWINGS ARE INTENDED AS A GUIDE. AS GRADING PROGRESSES, MEASURES MAY BE ADDED OR DELETED BY THE EROSION CONTROL APPROPRIATE STANDARD WITH NCDOT OFFICER AS DEEMED NECESSARY TO CONTROL EROSION AND SEDIMENTATION. IF GRADING CONTRACTOR FEELS THAT ADDITIONAL MEASURES ARE NEEDED OTHER THAN THOSE INDICATED, GRADING CONTRACTOR SHOULD 10. INSTALL UTILITIES SERVICES FOR THE PROJECT AFTER ASPHALT IS PLACED. UTILITIES CONTACT THE OWNER AND ENGINEER IMMEDIATELY FOR APPROVAL OF THE CHANGES. APPROVED MATERIALS AND INSPECTED. FOR THE SITE INCLUDE DUKE ENERGY, PIEDMONT NATURAL GAS, SPECTRUM CABLE AND 2.ALL EROSION AND SEDIMENTATION CONTROL MEASURES AND DEVICES SHALL BE INSTALLED AND MAINTAINED IN ACCORDANCE WITH THE NCDEQ - LAND QUALITY SECTIONS 'EROSION AND SEDIMENTATION CONTROL AT&T LINES. PLANNING AND DESIGN MANUAL.' 8" MIN. 11. SEED MULCH AND STABILIZE ALL DISTURBED AREAS FROM UTILITY LINE 3.ALL DISTURBED AREAS SHALL BE SEEDED AND MULCHED IN ACCORDANCE WITH THE NPDES GROUND COVER REQUIREMENTS AS SHOWN ON THE DETAIL PLAN. GEOTEXTILE FABRIC TO BE PLACED 4.ROUGHEN SLOPE SURFACES TO MINIMIZE EROSION DURING VEGETATION ESTABLISHMENT. CONSTRUCTION. UNDER STONE FOR CONSTRUCTION ENTRANCE. 5.IN ACCORDANCE WITH SELF-INSPECTION RULES OUTLINED IN NCGS 113A-54.1, THE PERSON(S) CONDUCTING THE INSPECTIONS SHALL MAKE A RECORD OF THE SITE INSPECTION BY DOCUMENTING PER NCDEQ 12. AFTER SITE IS STABILIZED, REMOVE TEMPORARY EROSION CONTROL BASINS AND "SELF-INSPECTION GUIDELINES". NOT LESS THAN DEVICES WITH APPROVAL FROM THE NCDEQ EROSION OFFICE. INSTALL PERMANENT 2"-3" 6.0 FEET COARSE AGGREGATE EROSION/VELOCITY CONTROL DEVICES AND SPOT SEED AND MULCH ALL RESULTING BARE AREAS. PIPE OUTLET TO FLAT AREA WITH NO DEFINED CHANNEL TEMPORARY GRAVEL CONSTRUCTION ENTRANCE ~ Silt Fence Materials ~ N.T.S. Use a synthetic filter fabric of at least 95% by weight of polyolefins or NOTES polyester, which is certified by the manufacturer or supplier as conforming to the requirements in ASTM D 6461. 1.La IS THE LENGTH OF THE RIP-RAP Construction 1. Clear the entrance area or all vegetation, roots, and other objectionable AA Synthetic filter fabric should contain ultraviolet ray inhibitors and stabilizers Specifications material and property grade it. APRON. to provide a minimum of 6 months of expected usable construction life at a 2. Place the gravel to the specific grade and dimensions shown on the plans, and smooth it. 2. d = 1.5 TIMES THE MAXIMUM ROADSIDE STOP SIGN temperature range of 0 degrees to 120 degrees Fahrenheit. 3 dd STONE DIAMETER BUT NOT LESS OO 3. Provide drainage to carry water to a sediment trap or other suitable outlet. Ensure that posts for sediment fences are 1.33 lb/linear ft minimum steel TAN 6". RURAL DISTRICT 4. Use geotextile fabrics because they improve stability of the foundation in with a minimum length of 5 feet. Make sure that steel posts have 3.IN A WELL DEFINED CHANNEL EX- locations subject to seepage or high water table. projections to facilitate fastening the fabric. NOT TO SCALE TEND THE APRON UP THE CHANNEL Maintenance Maintain the gravel pad in a condition to prevent mud or sediment from leaving For reinforcedment of standard strength filter fabric, use wire fence with a BANKS TO AN ELEVATION OF 6" the construction site. This may require periodic topdressing with 2-inch stone. ABOVE THE MAXIMUM TAILWATER minimum 14 gauge and a maximum mesh spacing of 6 inches. After each rainfall, inspect any structure used to trap sediment and clean it out as necessary. Immediately remove all objectionable materials spilled, washed, or DEPTH OR TO THE TOP OF THE PLAN VIEW tracked onto public roadways. BANK, WHICHEVER IS LESS. 4. A FILTER BLANKET OR FILTER FABRIC SHOULD BE INSTALLED BETWEEN La DRAWN BY: JAS THE RIP-RAP AND SOIL FOUNDATION. CHECKED BY: ARS 5. INSTALL PAD ON 0% GRADE d DATE: 10/14/2020 PROJECT NO.: 302.19 FILTER BLANKET REF. NO.: SECT. A-A SCALE: NO SCALE OUTLET STABILIZATION STRUCTURE N.T.S. MAINTENANCE INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS 11/12/2021 IMMEDIATELY. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. C9 REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED. 9 OF 11