The URL can be used to link to this page

Home My WebLink AboutSWA000150_Plansheet - Misc. Detail_20220624 (3)PEAK ROOF TRASHRACK SKIMMER (SEE DETAIL) RISER CREST ELEV. 863.00' SEDIMENT REMOVAL MARK �\ ELEV. 862.00' 6' MIN. RISER INVERT ELEV. 861.00' 1 I I � III1 I I1 CLASS B STONE PAD 1III-III= (4'x4'x1' MIN) i1=ii1=ii1=T FLEXIBLE CONNECTION TO _ SKIMMER (SEE DETAIL) CONCRETE ANTI -FLOATATION PAD ELEVATION OF OVERFLOW (SEE PLAN VIEW FOR ELEVATIONS) CONCRETE RISER STRUCTURE (SEE PLAN ° VIEW FOR SIZING) BOTTOM OF SEDIMENT TRAP _ 4" SCH 40 COUPLING FROM POND SKIMMER TO BE CONNECTED TO 4" SCH 40 PIPE 1.0" MIN FREEBOARD SELECTED FILL PLACED IN LAYERS AND COMPACTED BERM TOP EMBANKMENT STABILIZED WITH VEGETATION 2:1 SLOPE MAX. I-IDPE BARREL_ WF7 I III=III=II I=III=III= - II; ,III,��III��IIII��III_„III,-11t 1��ANTI-SEEP COLLAR (SEE DETAIL) L CUT-OFF TRENCH 2' DEEP, 3' BOTTOM 2:1 SIDE SLOPES SECTION THROUGH EMBANKMENT RIP RAP APRON AT OUTLET 1. LOCATE THE SEDIMENT INLETS TO THE BASIN THE GREATEST DISTANCE FROM THE PRINCIPLE SPILLWAY. 2. SEED AND PLACE MATTING FOR EROSION CONTROL ON INTERIOR AND EXTERIOR SIDESLOPES. 3. INSTALL A MINIMUM OF 3 COIR FIBER BAFFLES IN ACCORDANCE WITH NCDEQ PRACTICE STANDARD 6.65. 4. INSTALL SKIMMER AND COUPLING TO RISER STRUCTURE OR DIRECTLY INTO THE EMBANKMENT 1 FT. FROM BOTTOM OF BASIN 5. THE ARM PIPE SHALL HAVE A MINIMUM LENGTH OF 6 FT. BETWEEN THE SKIMMER AND THE COUPLING. 6. ALLOW THE MAXIMUM REASONABLE DETENTION PERIOD BEFORE THE BASIN IS COMPLETELY DE -WATERED (AT LEAST 10 HOURS). 7. REDUCE THE INFLOW VELOCITY AND DIVERT ALL SEDIMENT -FREE RUNOFF. 8. SEDIMENT BASIN EMBANKMENTS TO BE PROVIDED WITH ADEQUATE GROUND COVER IMMEDIATELY UPON CONSTRUCTION. ELEV 1' BELOW TRAP BOTTOM I D3.08 SEDIMENT BASIN TRASH RACK NOT TO SCALE 10' WIDE BERM TEMPORARY HDPE //z�/j�/j�/j�/j�/j�/j�/j\ r' PIPE PIPE TO TIE INTO /\\//\\//\\//\\//\\//\\//\\// STORM STRUCTURE //i.//i.//i //i.//i.//i.//i //i.//i.//i //i.// (SEE PLAN) 1% MIN ---> REINFORCED CONCRETE SLAB TEMPORARY RISER STRUCTURE D3.09 AT TEMPORARY SEDIMENT BASIN NOT TO SCALE 4' MAX N OTE: 1. TOP, FRAME, AND GRATE SHALL BE PLACED ON TOP OF BRICKS NCDOT #5 OR #57 WASHED STONE BRICKS TO ALLOW DE -WATERING THROUGH VOID�� (DOoCO(g °0000l' o 2" STEEL ANGLE SET 18" IN GROUND -_ 2:1 SLOPE, GRAVEL FILTER •ramr�rr_�rry�.r.>rr�� PROPOSED 2' CONTOURS (TYP) I \ � \�10 _ \\ (\ v x�\ PROPOSED TEMPORARY SKIMMER SEDIMENT BASIN 'A (SEE DETAIL D3.08) STORAGE SURFACE AREA: 3087 SF STORAGE DEPTH: 2' MAX. SIDE SLOPES: 2:1 PROPOSED BAFFLE (SEE DETAIL D3.10) ^ PROPOSED BASIN BOTTOM ELEV.: 861.00 PROPOSED 1.5" SKIMMER WITH 1.5"0 ORIFICE (TYP) (SEE DETAIL D3.11) \ x x PROPOSED TOP OF STORAGE (ELEV.: 863.00) PROPOSED SILT FENCE (TYP) PROPOSED LIMITS OF DISTURBANCE (TYP) PROPOSED TEMPORARY RISER STRUCTURE PROPOSED 18" HDPE PIPE \ (1.0% MIN. SLOPE) (SEE DETAIL D3.09) \ INSPECT TEMPORARY SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT AND REPAIR IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN IT ACCUMULATES TO ONE-HALF THE DESIGN DEPTH. PLACE REMOVED SEDIMENT IN AN AREA WITH SEDIMENT CONTROLS. CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE SKIMMER AND POOL AREA. + + BAFFLE (TYP.) + T EARTHEN EMBANKMENT + ++ + + + -III ++ + I- + + + --I + � III =III= + + II III -III= + III -III -I +-I-� + + -- +- �� 11111=I + + + + + 3'-4' 19 GAUGE HARDWARE CLOTH + + + I- + + ++ INLET ZONE (1/4 MESH OPENINGS ++ + + + + ++ + 25% OF SURFACE AREA + + =III=11 1= + -III-+ + + + +-� + + BRICK WITH 4" SPACES + ++ + + + III III ++ + + + FIRST CHAMBER BETWEEN BRICKS TO ALLOW + + + +- -III + + 25% OF SURFACE AREA TEMPORARY SEDIMENT POOL 3' DE -WATERING THROUGH VOIDS + ++ + ++ ++ + + ++ ++ + SECOND CHAMBER \\ 2' 25% OF SURFACE AREA NOTES: OUTLET ZONE 1. POROUS BAFFLE USING JUTE NET BACKED 25% OF SURFACE AREA Xx 1' MIN. %////////////\ A\//�/��/j\/j\/j\/j\/j\/j SEDIMENT16 BY COIR EROSION BLANKET (OR EQUIVALENT). 2' MAX./ // // // // //2. SEE FIGURE 6.6513 OF NCDENR a FOR CROSS SECTION OF POROUS BATTLE. OUTLET STRUCTURE WITH RISER BARREL (SEE DETAIL) D3.07 SEDIMENT TRAP / BASIN BAFFLE DETAIL CONSTRUCTION NOTES: NOT TO SCALE 1. LAY BRICK ALONG TOP OF CATCH BASIN WITH 4" SPACES BETWEEN BRICKS. SET FRAME AND GRATE ON BRICKS. 2. CAREFULLY FIT HARDWARE WIRE OR COMPARABLE WIRE MESH WITH 1/2-INCH OPENINGS AROUND CATCH BASIN TO HOLD SUPPORT POST, GRAVEL IN PLACE. SUPPORT ROPE TO 24" INTO BOTTOM STAKE TO WIRE TO PREVENT OR SIDE SUPPORT WIRE 3. USE CLEAN GRAVEL, 3/4- TO 1/2-INCH IN DIAMETER, PLACED 2 INCHES BELOW THE TOP OF THE GRATE ON A 2:1 SAGGING SLOPE OR FLATTER AND SMOOTH IT TO AN EVEN GRADE. DOT #57 WASHED STONE IS RECOMMENDED. \ ' / J SEDIMENT BASIN 'A' DETAIL 1 "- l n' SCH 40 COUPLING CONNECTION (TYP) VENT (TYP) INLET (TYP) PROPOSED NYLON ROPE (ROPE TO RUN EMBANKMENT TO PROVIDE METHOD TO PULL SKIMMER) INLET EXTENSION SCH 40 SOLID PVC BARREL OR "ARM" SUPPLIED BY USER (TYP) HOSE (TYP) NOTES: 1. SKIMMER SHOWN IN FLOATING POSITION 2. FAIRCLOTH SKIMMER OR APPROVED EQUIVALENT 3. SKIMMER TO BE REMOVED UPON REMOVAL OF SEDIMENT TRAP 4. COUPLING CONNECTION INTO PROPOSED OUTLET STRUCTURES MUST BE SEALED UPON REMOVAL OF SKIMMER POND SKIMMER DETAIL D3.11 NOT TO SCALE /< 4. SEDIMENT SHALL BE REMOVED AND TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS �ii�\%/\\%/\ //\\%/\\%/�. BAFFLE MATERIAL ACCUMULATED TO 1/2 THE DESIGN DEPTH OF THE TRAP. �j\\j\\ j\ / \�\j��\� 11 GAUGE LAN D SSCAPING TAP LE 5. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER THAT IT WILL NOT ERODE. 6. THE STRUCTURE SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR HIS AGENT AFTER EACH STORM \/\\%\\ \\\\ \ EVENT AND REPAIRS MADE AS NECESSARY. A/V/� �V/V/\�` /V/V/V/V/� </V/V/V/\/ V/\ V/ ^�A VA �A VA VA A VA VA VA VA VA VA VA VA �A VA VA VA V� // / // // //// // STEEL POST 7. CONSTRUCTION OPERATIONS SHALL BE CARRIED OUT IN SUCH A MANNER THAT EROSION AND WATER POLLUTION ARE //\/// jj\//�/j/\/jj\//�/j/\/j/\/jj %\�j\\�////\/jj �� VA \ VA VA VA AA VA ��\OVA \ VA MINIMIZED. //\//\ //\//\//\// \// j %/\//\/ BAFFLE MATERIAL SHOULD B E v I SECURED TO THE BOTTOM OF 8 THE STABILIZED. SUFFICIENTLY NT TRAP LL BE REMOVED DEWA ER BASINS,NDFILLH THEREA BASIN USING DWHEN THE STOC PILED SOIL AND BRING TO FINISHBEEN GRADEA PERMANENTLY/�\/��/ ^ //�/\j �/ 12 E LANDSCAPE BASIN PLES USING COMPACTED LIFTS. SMOOTH THE BASIN SITES TO BLEND WITH THE SURROUNDING AREA, ENSURING THE BASIN SITES WILL ` \`�\�\\ \% NOT POND WATER, AND IMMEDIATELY STABILIZE. COIR MESH OR SIMILAR, 9, ON LARGER DRAINAGE AREAS RIP RAP MAY BE REQUIRED UNDER THE WASHED STONE TRENCHED INTO BOTTOM OR SIDE STONE INLET PROTECTION D3.12 NOT TO SCALE BAFFLE DETAIL D3.lO NOT TO SCALE EXISTING 2' CONTOURS (TYP) ROUGH GRADING AND EROSION CONTROL DETAILS j 4 00 � co � LLrf W It M co N r` It ~ co� Ill� Lo >clicli a N C4 co N U� Z N N LLI co co �z a F-Lj ao eo OZ J 00 co W J O`0 ONO IL w Z Q> W x co x0LL (nuw0LL cfl< ZQ0. 33 N Lo cn cn cn a o 0 w w C/) co I wIn fk� > I-- w w w o w w w z cn o � 1� ° ° ��0 \' �oP d"�o��= -co°o�P Coro w� -Q°En = U o L�l c/l r7 G1 o s°oo ��O �_°4 d �o �� °J N W cc O CD J_ a z J O W m Q (r o U m U7 J z Q O z ~ O w o � J O z p z W o U � � z 0 U � U LLd J w 0 Z Q W O m c� CD z o � a Q � 3: o Q 0 _ 0 m � m O w = m � DRAWN BY: DMS CDC PROJECT NO.: XXX PERMIT NO. xxx SHEET C932