Loading...
HomeMy WebLinkAbout20210629_Mine_MapsI .� I '.r i �� f ,., E i 'All.F x-ie..Ell<. i CONSTRUCTION ENTRANCE SPECIAL SOW= GENERAL EROSION CONTROL NOTES TEMPORARY DIVERSION CO L C NOTES: TEMPORARY DIVERSIONS USED AT ALL AREAS SUBJECT 1. PROVIDE TURNING RADIUS SUFFICIENT TO ACCOMMODATE LARGE NOTES TO SHEET' DRAINAGE. AD TRUCKS. 2. LOCATE ENTRANCES TV PROVIDE ;FOR UTILIZATION 3 it ALL LAND DISTURBING ACTIVITIES ARE LIMIT BE BY ALL CONSTRUCTION VEHICLES. EXCAVATE TEMPORARY DIVERSION WITH NON --VERTICAL SIDE SLOPES AND NOT 3. MUST HE MAINTAINED 1N A CONDITION WHICH WILL PREVENT GREATER THAN 1.5:1 SLOPE. PLANNED OF CONDUCTED O AS TO LIMIT TRACKING OR DIRECT FLOW OF MUD ONTO STREETS. EXPOSURE OF BARE EARTH FOR THE SHORTEST PERIODIC TOPDRESSIN(I WITH STONE WILL BE NECESSARY. SEED BERM CREATED BY COMPACTED SOIL AS DIRECTED. NOTES VIABLE POSSIBLE TIME. 4. ANY MATERIAL TRACKER. ONTO THE ROADWAY MUST BE CLEANED UP IMMEDIAT91,Y USE N0. 5 OR NO. 57 STONE FOR SEDIMENT DI.iIENSION �'. ? 3PTRE MESH 5. LOCATE GRAVEL CONSIIIUCTION ENTRANCE AT ALL POLVIS OF CONTROL STONE sEDclLM CONTROL MNE ALL TING RBEB AREA SHALL BE F PERIL N BY THE INGRESS AND EGRESS UNTIL SITE TS STABILIZED. PROVIDE PLANTING AND ESTABLISHMENT OF PERMANENT AND FREQUENT CHECKS OF' THE DEVICE AND TIMELY MAINTENANCE USE IiAHDIYAItIi CLOTH 24 GAUGE WIRE MESH 2 It B. NUMBER AND LOCATION OF CONSTRUCTION ENTRANCES TO WITH ? INCH MESH OPENINGS. 1 it win UNIFORMED GROUND COVER. BE DETERMINED BY 1I14 ENGINEER 7. USE CLASS A' STONE OR OTHER, COARSE AGGREGATE APPROVED COMPACTED SO INSTALL 5 FT.SELF FASTENER ANGLE STEEL (�� TEMPORARY CONSTRUCTION AND STAGING AREAS SHALL BY THE ENGINEER. \ POST 2 F�: DESK MINIlIU!4L ADEQUATE SEDIMENT AND EROSION CONTROL 8. INSTALL CONSTRUCTION. ENTRANCES IN A WAY TO PREVENT VEHICLES \ ^ `I 2' 3HNdMUM � "� ATTACH HARDWARE CLOTH TO POSTS WMI WIRE MEASURES INSTALLED TO PREVENT OFF SITE FROM BYPASSING CONSTRUCTION ENTRANCE LEAVING PROTECT SITE. STAPLE OR OTHER ACCEPTABLE METHODS. .:.::i': Y' ri•'; SEDIMENTATION, AND SHALL BE SEEDED AS „; r+ i'=`... FLOW MAXIMUM OF 3 F T- NECESSARY TO BRING THE SITE BACK TO ITS g' `� SPACE POST A UPON COMPLETION OF THE :.:�' '1', ;i + r : ` '{ , :} • f :5;; MINdMUM NATURAI, STATE PROJECT, is ?•''4'(; :; '' ::: "ri•::'; t ;• :' `_ :r::" FOR INSTALL 1,10K BETWEEN SECTIONS OF SILT FENC$ E}O'END SEDIMENT CONTROL 7 WIRE MESHMESHSTONE A MINIMUM OF 122" SEDIMENT AND EROSION/TURBIDITY MEASURES SHALL !! OON .EACH 5lDE OF SPECIAL SEDIMENT CONTROL FENCE SECTION, SEDB ENT CONTROL STO BE INSPECTED AFTER EACH RAINFALL TO INSURE 1 1t min TUEY ARE FUNCTIONAL AND IN GOOD WORKING 8' 'TYPICAL CONDITION. SEDIMENT' DEPOSITION ACCUMULATION TO WATER FW p� _ — � j BE P E'RIO.DICA LLY REMOVED TO MAINTAIN EFFECTI�WNESS. CLAW 'A' NE 8 IN. I M. Doi CROSS SECTIONAL VIES STEEL POST — z It D�Tx -- WIRE MESH 2 It 6 COIR SILT FENCE DRAPE BAFFLE MATERIAL OVER VfIRE STRAND INSTALL T-POST TO ANCHOR AND SECURE WITH PLASTIC TIE$ AT POSTS BAFFLE TO SIDE OF BASIN AND YOP y � ears 8' MAIL WITH W� AND ON WIRE EVERY 12' SECURE TO VERTICAL POST ($' MAX WITHOUT WIRE) 4' MAXol MIDDLE AND VERTICAL WIRES SHALL BE 12'? GAUGE MIN. 9 GAUGE MIN HIGH auis xv� ^ s TENSION WIRE STRAND SHALL BE SECURED s�a. TO POST TO SUPPO oe TOP AND BOTTOM STRAND RAFFLE MATERIAL � SHALL BE 10 GAUGE 2 .. MAX VARIABLE DEPTH 1$" MIN. _t £: ,�•,M�f . 'x a 'x.e �"� :a . "'c - �% !sti; sa %fit Him u u"a x W= SECURE 130TTOM OF BAFFLE WIRE HAFkU MATERIAL TO GROUND WITH 12" STAPLES AT 12" MAXIMUM SPACING BAFFLE MATERIAL. 1w or C= =m FILTRATION GEO'i`1�Y`fdLE PLAN NOTES USE FILTRATION GEOTEXTILE NOTES: L GAUGE A MINIMUM OF 3E3" IN WIDTH AND FILTRATION GEOTEXTII.E 1. INSTALL THREE(3) COIR FIBER LANDSCAPE ror or oares nrmPa - — STAPLE _ _ FASTEN ADEQUATELY TO THE POSTS BAFFLES IN SILT BASINS AND SEDIMENT` _ Ili- Il 11 I1=11llil�lIII1�lllli9ll11�1111=111iIM11l_illill�lllllll Tlillll-11111 AND WIRE AS DIRECTED. COMPACTED FI DAMS AT DRAINAGE OUTLETS WITH A USE WIRE A MINIMUM OF 32" SPACING OF 1/3 THE BASIN LENGTH. tm* IN WIDTH AND WITH A MINIMUM •� t� rr vain rs _ — 2. TWO-(2) COIR FIBER BAFFLES CAN BE r s�uvlt �aax �r auxcx rinf L1kE OF s. LINE WIRES WITH 12" STAY INSTALLED IN SILT BASINS AND DAMS IIIIIIiilllllllll=llllil= iil illli Ili ^liltl=lllli Illl II SPACING. �� $' LESS THAN 20 FT. IN LENGTH WITH A STEEL POST — z 0" DEPTH I b PROVIDE 5'-D" STEEL POST OF j SPACING OF 1/3 THE BASIN LENGTH. THE SELF -FASTENER ANGLE STEEL L TYPE. �, STEEL POST — 2'--oo' bEPTH IIIII� i1=1'll� � I�III i Illli FOR MECI3ANICAL SLICING METHOD 3. TOP HEIGHT OF COIR FIBER BAFFLES BAFFLE MATERIAL SHALL BE SECURED INSTALLATION, GEOTEXTILE SHALL SHALL NOT HE BELOW BASE OF EMERGENCY To THE BOTTOM AND SIDES or' : ASIN wo'rEs BE A MAXIMUM OF 1$ ABOVE GROUND EXTENSION OF GEOTEXTILE AND SPILLWAY ELEVATION. vsltlO 12' LANDSCAPE STAPLESr INSTALL COD2 FISFR BAFFLES - 15i I+VA110PI j SURFACE. WIRE INTO TRENCH - F F Y CK S D1 �E B G BASIN FOR t SEEDING SCHED ULE eo1R FIBER gAF _ ALL DISTURBED AREAS SHALL BE STABILIZED WITH A PERMANENT VEGETATIVE COVER. EROSION CONTROL MAINTENANCE REQUIREMENTS IsvcTII1 gTpNE UNCLASSIFMy CONSTRUCTION ENTRANCE MUST BE MAINTAINED TO PREVENT MUD OR EARTH MATE! SEDIMENT FROM LEAVING SITE. TERIODIC TOP DRESSING WITH TWO Bran arT 5' mm ��. PERMEABLE A. CULTIVATE AREA TO A DEPTH OF 5". cOlaROL STONE I l STEEL STONE DRAIN - INCH STONE MAY ICE REQUIRED..:; NOTES POST B. APPLY AGRICULTURAL LIME AT THE RATE OF 4000 LBS. PER ACRE. I C. APPLY 10-10-10 COMMERCIAL FERTILIZER AT THE RATE OF 1000 LBS PER ACRE. �L EROSION AND SEi)i AIT CONTROL PRACTICES WILL BE CHECKED $•��',��..`a�. 0' MAX INSTALL COIR kI9IiRR BAFFLES i i D, SOIY GRASS SEEDS AT THE FOLLOWING RATES: �� FOR STABILITY AND ,OPERATION �'OLIAWING EVERY RAINFALL .a $ WEEK INSTALL THE TOP OF THE COIR FIBER BAFFLE A 1a aura Jaffa✓:;per ALL SOILS (FIB - SEP'IEMBER) PRODUCING RUNOFF, BUT IN NO.jCA�E LESS THAN ONCE EVERY WE MINIMUM of s" LOiYI;R THAN THE TOP OF TIIE ANY NEEDED REPAIRS WILL BE MADE IMMEDIATELY TO MAINTAIN ALL 37UUNG BASIN BERMS. �, __.:�� �e•�� � BERMUDA GRASS 30 LBS. (5 LB. CENTIPEDE GRASS CAN. BE PRACTICES AS DESIGNED. PROFdLE SECTION USE THE TYPICAL SECTION SHOWN FOR THE SUBSITUTED FOR BERMUDA GRASS) S77LUNG BASIN AS A GUIDE. THE BASIN MAY ALL SEEDED AREAS WILL. HE FERTILIZED, RESEEDED AS NECESSARY, HAVE ANY TYPE CONFIGURATION AS LONG AS V4 L 1 4 L 1/4 L 1/4 L BAHIAGRASS 50 LBS. DaIGN 6gYR5uw 11 r SUFFICIENT VOLUME IS PROVIDED AND PROVIUION5 / AND MULCHED ACCORDING 30 SPECIFICATIONS IN THE SEEDING STRUCTORAL sxo ARE MADE FOR A PERMEABLE STONE DRAIN SCHEDULE TO MAII,TTAII'I A VIGOROUS, DENSE VEGETATIVE COVER. DRAINAGE AREA WEIR LENGTH SETTLED T'OP 4 g SERICEA LESPEDEZA 10 LBS. t DO NOT EXCEED 6 FT. IN HEIGHT FOR THE k,1' 1RTH I, 1 4.0 DIKES REQUIRED FOR STILLING BASINS, i 2 6.0 ADDITIONAL DEPTHS MAY BE ATTAINED BY GERMAN MILLET 10 LBS. 8.0 �� .� EUEEGENCY BY-PASS 9" EXCAVATING BELOW THE NATURAL GROUND L1;VEL BELOW SETPLED 'PCP OF DASS 4 10.0 � '��%`a •`a THE STILLING BASIN SIZE IS VARIABLE AND E. MULCH WITH STRAW AT THE RATE OF 4000 LBS PER ACRE. p 14.0 DEPENDENT ON SPECIFIC SITE REQUIREMENTS EARTH DIM � F. ANCHOR STRAW WITH ASPHALT EMULSION TACK COAT APPLIED AT THE RATE 7 10.0 AS WELL AS PROPOSED CONSTRUCTION 8 180 PLUS 4 FEET NATURAL GROUND OPERATIONS. PLAN VIES 0I+' 300 GALLONS PER ACRE. ' 9 :t0.0 FOR POOR DEFINED CHANMUZ _ � 10 20.0 SUBMIT THE SFLE LOCATION AND PERMEABLE STONE 2. WHERE IT IS NOT POSSIBLE TO ESTABLISH A PERMANENT GRASS COVER IN A REASONABLY SHORT PERIOD OF TIME. DUE CROSS SECTION DRAIN MATERIAL FOR APPROVAL PRIOR A 'L" = 2"N' MIN. 1 .p•f TO SEASONAL CONSIDERATIONS, A TEMPORARY COVER SHALL BE ESTABLISHED. THE TEMPORARY SEED RATE PER CONSTRUCTION. 1 _O '}"" $. �� r ACRE SHALL BE: NOTES PUMP THE EFFLUENT INTO THE STILLING BASIN 16 WINTER (SEPTEMBER — APRIL) SUMMER (MAY -- AUGUST) 4 A MAXIMUM DEPTH OF 3 FEET, �• ;1;'� �a' �� . USE CLASS B EROSION CONTROL STONE FOR STRUCTURAL STONE ' ^'� ' a' GERMAN MILLET 40 LBS. USE NO. 5 OR NO. 57 STONE FOR SEDIMENT. CONTROL UTONE r PERMFAB RYE (GRAIN) 120 LBS. DIKE MAY EXTEND ALONG MORE THAN ONE SIDE OF TILL; TRAP AREA PROVIDE A STONE DR KOBE ANNUAL LESPEDEZA 50 LBS. TOTAL SEDIMENT STORAGE VOLUME OF 3BOOT" CUBIC FEET PER ACRE OF DISTURBED II AREA- SOME OF THE REQUIRED VOLUME MAY BE PROVIDED BY OTHER UP OR COIR FIBER BAFF ��STEEL POSTS TEMPORARY COVERS 511ALL NOT ELIMINATE THE REQUIREMENT FOR PERMANENT GRASS COVER. WHERE THE SEASON DOWNSTREAM CONTROL. 4o OR OTHER CONDITIONS ARE NOT SUITABLE FOR GROWING A TEMPORARY EROSION RESISTANT COVER, MULCH MAY BE AN UNDERLAY OF STRUCTURAL STONE WITH FILTRATION GEOTEXTILE MAY BE REQUIRED iv+n VARIABLE gg APPLIED: HOWEVER, MULCH USED ALONE SHALL NOT BE ALLOWED. A 'TEMPORARY OR AS DIRECTED. TYPICAL SECTION VIEW 1 INSTALL COIR FIBER BAFFLES ON THE UPSTREAM SIDE OF THE DAM PERMANENT VEGETAI'1'1VE COVER SHALL BE ESTABLISHED A$ SOON AS CONDITIONS ARE FAVORABLE. 3. TOPSOIL SHALL BE USED OVER UNFAVORABLE SOIL CONDITIONS FOR SUCCESSFULL ESTABLISHMENT OF VEGETATIVE COVER. SEED AND PLACE MATTING FOR EROSION CONTROL ON ALL INTERIOR AND EXTERIOR SLOPES m. OF SEDIMENT BASIN AS DIRECTED. 4. IRRIGATE AS NECESSARY TO OPTIMIZE PLANT GROWTH. i 18" EXISTING (MIN.) GROUND I BACK Staple Check Pattern 4 { � )� Y / STAPLES ON Staple 1�,. �� ,� �. ''•r:y.sa'� 1' CENTERS_ IN TRENCH ' A �( ^-, 1 N • 11 4., 30' — Staple Check MIN x j--4" ^^^ _ - MATTING SMALL B STAPLES ON DIAGRAM O —PLACED IN TRENCH 1' CENTERS AND BACKFILLED M TRENCH DIAGRAM Co AtiTTINGON SLOPES DIAGRAM O SHEET 4 OF -,.. ..-...... ..�.., .-�..nw.. - .__. e......x�•.'�..s..'�wr .>v ._M...-x�.-tu:--�-. .>....�... y a-�:W" _ r... ..r.: �. �r:. ... x.- .,... .... .. ..,", ..... Dewatering Basin Design Version 2.27.09 STEP 1: Input required variables Pump Rate: Retention Time: Required Volume GPM hours 16040.E 3 14rm7 in. ,r'.f :;rr+ rnU`6 '`�35e 5 N•ll h@ 17a#P.0 tiF#1 a 2 ll vl.lr al rtIT tfrne. The pump rate shall nrat exceed i,000 GPM (60:000 ,GPP). The contract may desire a greater retention time for ma caging Morbidity: however, work ,.ssoclated with this increased volume will STEP 2: Design of the Dewatering Basin Final Required Volume 16040.E Design Depth: 3 not to exceed 3 feet Proposed Basin Side Slopes 3 n :1 side slopes 'must he al least 1.5:1 or flatter OPTIONS 2:J(L"o 3:i(L:V1O Suggested To Width ft : 52 43 Su ested To Length ft : 104 129 Final De n To Width ft : Final Design To Length ft: 150 180 Final Design Depth ft: 3 3 Verity storaga (ft) 27999.00 OK 26244.00 OK ents: EXCAVATION AND DEWATER SEQUENCE 1. ALL PIT PIT AREA WILL BE EXCAVATED USING TYPICALS 1 AND 2 AS SHOWN ON PLAN SHEET 2. THIS EXCAVATION WILL BE JUST ABOVE THE WATER TABLE. NO DEWATERING WILL BE NEEDED. 2. NEXT EXCAVATION WILL BEGIN IN THE SOUTHEAST CORNER OF THE PIT, NEXT TO THE 150' BUFFER AS SHOWN ON PLAN SHEET 2. SEE TYPICALS 3-5. PLAN SHEET 2. THE 150' IS SO THAT WE DO NOT DAMAGE OR DRAIN THE EXISTING WETLANDS. EXCAVATION WILL RUN TO THE SOUTH WEST CORNER OF THE PIT NEAR THE HAUL ROAD. THIS EXCAVATION WILL BE 20'-25' IN WIDTH AND WILL EXTEND DOWN 10' TO 127. MATERIAL WILL BE CAST INTO PILES ALONG THE EXISTING PIT FLOOR TO DRY. 3. THAT THIS POINT WE WILL START DEWATERING. PUMP WILL RUN ABOUT 3 HOURS A DAY NOT TO EXCEED 100,000 GALLONS PER DAY. BASIN IS DESIGN FOR 1000 GALLONS PER MINUTE WITH A 2 HOUR RETENTION TIME. 4. EXCAVATION WILL CONTINUE IN THIS METHOD UNTIL ALL AREAS OUTSIDE THE 150' BUFFER ARE COMPLETED. 5. ONCE ALL AREAS OUTSIDE THE 150' WETLANDS BUFFER ARE REMOVED. DEWATERING WILL STOP. 6. AREAS THAT ARE IN THE HATCHED AREAS AS SHOWN ON PAGE 2, WILL THEN BE REMOVED, WITHOUT DEWATERING. MATERAIL WILL BE CASTED UP INTO STOCK PILES FOR DRYING. Vacuum -Assisted Open Trash / Sewage (TSV) The automatic -priming TSV series is ideal for general site dewatering, sewer by-pass pumping applications, emergency flood response, and any other applications that require the transfer of liquids that contain solids. The low maintenance TSV series is able to run dry attended, operate in snore conditions, and is easy to operate. The high air -handling priming systems allows for quicker priming times so you can start pumping faster. Consult Thompson Pump for options, accessories, applications assistance and alternatives. Applications Construction: Dewatering excavations, canals and sumps; groundwater dewatering with wellpoint systems or sock underdrains; bypassing sewers and bodies of water; extended Bumping; wellpoint dewatering; groundwater dewatering; water supply from wells or canals; hosing down concrete castings Civil Engineering Sewage pumping; flood drainage; fire fighting; recovery of hazardous liquids Waste Treatment: Sewer bypasses; mud or solids in suspension; dosing neutralizing liquids; pumping out sludge Mining: Wash -down operations; tailings; high head/high volume applications Industrial: Transfer of clean or dirty liquids, mud or solids in suspension; low viscosity petroleum products Agricultural: Surface irrigation; liquid manure oxygenation; transfer and spraying fertilizers or manure Alternate pump end materials available for corrosive liquids A?odel Specifications Maximum' Maximum* Maximum` Unit Size Capacity Head Solids Model (In.) (GPM) (Ft.) (In.) 4TSV 4 930 112 3.00 6TSV 6 1,460 150 3,00 8TSV 8 2,600 160 3,35 s-u <.reerarsc ezae, aar. s Features All the features of Thompson's TS Series Open Trash/Sewage Pumps and more... • Automatic dry priming and re -priming to 30 feet • Quick dry prime from 15 feet in 15 seconds • Heavy-duty cast iron construction for long life • Large solids handling capacity • High flow and high head capacity • 2 or 3-vane ductile Iron impellers available • Cast iron rubber -lined, abrasion -resistant wear plate • Dry running abrasion -resistant tungsten carbide mechanical seal with Viton eiastomers • Safety shutdown control panel standard • Various diesel or electric motor options • Simple low-cost maintenance -.. _ . rev o im sc 'so Soso ;y,�_ iW rax, mo zm as, Maximum Capacity (GPM) SHEFT 6 OF GG� SUE 50� CZ SR 1002 'Z� SR 1516 \'``o Q0� • AVT tD 9CAIS ►i+llzNvrl$P1 Lennons Crossroads SURVEY PLAT NOTES: 1. PROPERTY LINES ARE SHOWN TO THE CL OF' HIGHWAYS. 2. AREAS WERE OBTAINED BY COORDINATE COMPUTATIONS. a ADJACENT LANDOWNERS TAKEN FROM CURRENT TAX INFORMATION AND RECORDED DOCUMENTS OF COLUMBUS COUNTY REGISTER OF DEEDS, OR CLERK OF COURT': OFFICE. 4. NO NORTH CAROLINA GRID MONUMENT WITHIN 2000' OF PLATTED PROPERTY 5. THIS IS NOT A BOUNDARY SURVEY. BOUNDARY INFORMATION TAKEN FROM PLAT BOOK 69 PAGE 02 AND DEED BOOK 841 PAGE 43. 43.91 t OLD PIT AREA 28.85 f NEW PIT AREA 72.76f TOTAL PIT AREA 66.41f TOTAL EXCAVATION 1.37t TOTAL HAUL ROADS 4.98t TOTAL BUFFERS 27.32t ADDITIONAL EXCAVATION AREA 00.00t ADDITIONAL HAUL ROADS 01.53t ADDITIONAL BUFFERS SEAL OP�N CAR[3 `0 SEAL L-42113 Si jlZ LEE I HEREBY STATE TO THE BEST OF MY KNOWLEDGE AND BELIEF, THIS PLAT IS PREPARED IN ACCORDANCE WITH THE STANDARDS OF PRACTICE FOR LAND SURVEYING IN NORTH CAROLINA BLYTHE LEE'JORDPb PIS L-4283 LEGEND O EXISTING IRON CORNER • MAG NAIL SET • IRON SET f _- 7_11 WETLANDS 300450' - RVEY FOR FRANK HORNE CONSTRUCTION, INC TATUM TOWNSHIP COLUMBUS COUNTY NORTH CAROLINA FIELD DATE : NOV 2019 CREW: BLJ\ABJ PLAT DATE : MARCH 01, 2021 DRAWN BY: BLJ SURVEY & PLAT BY: BLYTHE L. JORDAN PROFESSIONAL LAND SURVEYOR L 873 SPENCER ROAD J FAISON,, N. C. 28341 i (910) - 840 - 5208