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Home My WebLink AboutSW6231002_Plansheet - SCM Detail_20240805 (7) A E B A A B C PRECAST CONCRETE HEADWALL HINGE MANWAYOEQUADRANT (NCDOT STD.838.80 FOR FINISHED GRADE FINISHED GRADE OR AS REQUIRED BY 2" TO BE OVER STEPS 2"X 2"X 1/q" LOCAL AUTHORITY ALUMINUM ANGLES 3"0 WEEP HOLE @ EACH CORNER O CENTERED ON WINGWALL ° a)DOWNSTREAM FACE OF DAM AT PIPE INVERT ELEVATION a° �"DIA.MTG HOLES C c DOWNSTREAM FACE (TYPICAL) (12 REQ'D)WITH$" j OF DAM a SST WEDGE ANCHORS N Ln JUNCTION BOX O-RINGS_ U RGRCP V WEEP HOLE INVERT ro 3 AT PIPE INVERT NOTE: 3 N TOP FILTER s FILTER TO BE LOCATED AT APPROXIMATE MIN 1/2"X 1/2"HORIZONTAL ALUMINUM BARS 3 OUTLET PIPE AT NORMAL POOL ELEVATION s„ 8 MIDPOINT OF PIPE SEGMENT,MIN 24"FROM COVER TOP OF FILTER ° ARE NOT SHOWN FOR CLARITY ^ p Q NEAREST PIPE JOINT TO FILTER DIAPHRAGM AT NORMAL POOL ELEVATION 76„ m 2" N M 0 24' a / MIN 6"ABOVE PIPE O.D. OUTLET PIPE ul U m s Z o, — — — — — — — — — — — — — — — — 18 + — — — — — — — — — — — — — — — - - - - - BEDDING TO „ 411 � � � • s s SPRINGLINE TYP. OF PIPE U (u 1 2a' HEADWALL ELEVATION > — ° 8 ° — ° SPACEDIS"O.C.± �"X�"ALUMINUM BARS � C) � fl- ° DIM A e a FLOW Q ° ° ILL a ° ° g'° o ° Y2"GRID GALVANIZED HARDWARE CLOTH @ BASE FRAME ° 8 (12"SQUARE MIN)(TYPICAL) CRADLE TO . �i. a ° 2 L 12"\ ° ° ° #57 WASHED STONE BEDDING SPRINGLINE a ° a ° OR AS APPROVED BY ° ° ° Ln u OF PIPE FLOW o ° d ° ° 76"X 6"X 6"WIDE"ALUMINUM Li FRAME ,n L ° °° GEO I ECHNICAL ENGINEER \ /\ /\ �\ �\ 2" TYP 2 .� CRADLE TO " SPRINGLINE 3"0 WEEP HOLE L18"± OUTLET PIPE CRADLE ° s, s #78 WASHED STONE BEDDING \� �j 12" OF PIPE CENTERED ON WINGWALL a � a a ° _j (SEE DETAIL) \ OR AS APPROVED BY \� / OUTLET PIPE CRADLE AT PIPE INVERT ELEVATION ° ° a o ° ° aC 8 76 \�/� GEOTECHNICAL ENGINEER \/ (SEE DETAIL) (TYPICAL) PLAN VIEW \. FILTER DIAPHRAGM SHALL BE COMPOSED �� /\/\ SUPPORT TO ALLOW PLACEMENT SUPPORT TO ALLOW PLACEMENT OF GRANULAR FILTER MATERIAL ASTM C-33 FILTER DIAPHRAGM SHALL BE COMPOSED OF SUPPORT CONCRETE PIPE CRADLE(TYPICAL) O-RING _ OF CONCRETE PIPE CRADLE(TYPICAL) CONCRETE SAND OR NCDOTNIC 25 SAND E GRANULAR FILTER MATERIAL ASTM C-33 RGRCP 9" APPROVED BY FABRIC TO BE ENGINEER. CONCRETE SAND OR NCDOT 2S SAND AS SQUARE ANN NO FILTER FABRIC TO BE USED APPROVED BY GEOTECHNICAL ENGINEER. 3"SST"U"BOLT LIFT NO FILTER FABRIC TO BE USED LUG 4"PERFORATED CORRUGATED HDPE PIPE PRECAST CONCRETE HEADWALL B A (ADS N 12 OR APPROVED EQUIVALENT) (NCDOT STD.838.80 a a OR AS REQUIRED a � 8 9"X 9"X�"ALUMINUM TOP PLATE _.O_jA B C BY LOCAL AUTHORITY) a WITH SST 3"U BOLT LIFT LUG J a a BARS LONGITUDINAL SECTION LONGITUDINAL SECTION 6" °° SPACE1D HORIZONTALLY 6" AS SHOWN ,`u TOP OF FILTER AT TOP OF FILTER AT 24 Z j Ln NORMAL POOL ELEVATION NORMAL POOL ELEVATION PLAN VIEW FINISHED GRADE 6„ LJJ u�14 ACCOMMODATES A 60"X 60"I.D. W O Z 5" FOR BOTH A 6"AND 8"WALL t!I w ASTM C-33 or NCDOT 2S SAND ASTM C-33 or NCDOT 2S SAND PRECAST CONCRETE HEADWALL a (NCDOT STD.838.80 OR AS REQUIRED ° ° J O Lu O RING O RING BY LOCAL AUTHORITY) d' , ' a' 2„ LJJ X 4"PERFORATED RGRCP RGRCP P, LL a CORRUGATED HDPE PIPE a N (ADS N 12 OR 3"�WEEP HOLE BEDDING TO Z 10 APPROVED EQUIVALENT) SPRINGLINE '8 6" W w CENTERED ON WINGWALL OF PIPE 60"I.D. AT PIPE INVERT ELEVATION SQUARE SECTION VIEW SECTION VIEW (TYPICAL) IF WALL IS 8" IF WALL IS b" DIME >„, • ' DIME LIMITS OF EXCAVATION LIMITS OF EXCAVATION O RING FOR FILTER DIAPHRAGM FOR FILTER DIAPHRAGM RGRCP SECTION VIEW WEEP HOLE INVERT NOTES AT PIPE INVERT 1. TRASH RACK DETAIL BASED ON POMONA PIPE PRODUCTS"STANDARD ALUMINUM BAR&ANGLE PEAKED ROOF TRASH RACK WITH ONE } 2D D+2t 2D 2D D+2t 2D QUADRANT HINGED FOR MANWAY ACCESS TO FIT 60"x60"I.D.CONCRETE � ° o ° ° DIM RISER 0 2 TRA H RIACK TO BE POWDER-COATED BLACK. z FILTER DIAPHRAGM DETAIL FILTER DIAPHRAGM DETAIL O O O SECTION "A-A" SECTION "B-B" O O u �� #57 WASHED STONE BEDDING 5i TRASH RACK OR AS APPROVED BY W DIM C DIM C GEOTECHNICAL ENGINEER NOT TO SCALE DIM C 8"MIN 8"MIN 8"MIN (D+2T) 8"MIN O z 8"MIN (DIM C 8"MIN (D+2T)� RIP RAP DISSIPATOR L� O\ � (SEE EROSION CONTROL PLAN) 0 (� _ HINGE ONE QUADRANT Z t FOR MANWAY ACCESS r Q t t LONGITUDINAL SECTION TO BE OVER STEPS 2"X2"X1/4" Q z 2" ALUMINUM ANGLES 0 Z t/1 J CRADLE TO @EACH CORNER Z W W � D SPRINGLINE BEDDING TO CRADLETO OUTLET PIPE FILTER DIAPHRAGM OUTLET DETAIL ° ° ° a u D SPRINGLINE a D SPRINGLINE (PRECAST H EADWALL) 1/2"DIA.MTG HOLES U OF PIPE #78 WASHED STONE ° OR AS APPROVED BY OF PIPE OF PIPE a, a DIM 6 GEOTECHNICAL ENGINEER NOT TO SCALE d SS WED WITH H W Q CLASS"A"CONCRETE ° ° (�D+t) DIM B DIM B SST WEDGE ANCHORS � 3,000 PSI ° ° (Y D+t) (Y2 D+t) Z �/ = O (SEE NCDOT DIM A(%D) CLASS"A"CONCRETE p NORMAL u Z STD 1000-4) (8"MIN) DIM A(Y3 D) 3,000 PSI DIM A(/3 D) 6" POOL (SEE NCDOT (8"MIN) O NOTE: � LT�_ (8"MIN) 2" ARE NOT OHOWN FOR CLARITY M BARS PIPE CRADLE DETAIL STD � O� cn SECTION "B-B" GRAVEL BEDDING DETAIL O o ' PIPE CRADLE DETAIL QE o 0 6'CMI�N�00 0 64" m SECTION "A-A" SECTION "C-C" 21F�A� O�O�O�O�O�O�O °RF��op 15„+ 4" J NOTE: NOTE: O� o�O�O�OUO�O�O�O�OU 2'�FR TYP. O IF PIPE IS INSTALLED IN EXCAVATED TRENCH, THEN SIDE WALLS MAY CONFORM TO TRENCH T PIPE I INSTALLED IN EXCAVATED TRENCH, , THEN SIDE WALLS MAY CONFORM TO TRENCH ��\ /��\ I �� 1 1 (TRENCH MAY BE USED AS CRADLE FORM) (TRENCH MAY BE USED AS CRADLE FORM) /2"X/2"ALUMINUM SECTION "A-A" ° BARS SPACED 15"O.C.± @ BASE FRAME OUTLET PIPE FILTER DIAPHRAGM & CONCRETE CRADLE DETAIL OUTLET PIPE FILTER DIAPHRAGM & CONCRETE CRADLE DETAIL 6�� 2" , DocuSigned by: AT JUNCTION BOX NOT TO SCALE �A NORMAL �7 ° ° ° 1/q"ALUMINUM PLATE FRAME rAlIA oV-0roc., 00 POOL 64"X 64"X 6"WIDE IJ o aao 0 2" 9E86 ° l�AAC ESS/NOT TO SCALE 2" L15"± o ° ° °Oo NOMINAL DIM A* DIM B DIM C DIM D DIM E DIM t O O O O O O OHO °°O °O °° (DIM A O oO o�oO oO oO oO o�o� o TYP. o z o° of O PIPE SIZE (1/3 D) (1/2D+t) (D+2t) (PIPE ID) (WALL) OHO C��OC��00�00�0 _ 6a" � ti9 '� 18 8 11 23 18 +20 2.5 a� 00 0000�� SEAL e o oas ss g e of �o PLAN VIEW ° q e o ° a i i i i i i i i i i i i i i i i i i i i i 'Q �i = 24 8 15 30 24 20 3 °'�NGINE��°°�vvvvvv� vvvvv wvvvvvvv o ° ° ° a30 10 18 37 30 22 3.5 NOTES: 5' IN SQUARE 3"SST"U"BOLT LIFT LUG °o00 au pOMoo" cn 36 12 22 44 36 24 4 1. BOTTOM WIDTH SHALL BE NO LESS THAN 5' 7/2/2024 N 2. USE NCDOT CLASS"B"RIP RAP TO FILL SPILLWAY A 9"X 9"X 1/2"ALUMINUM TOP PLATE ti 42 14 25.5 51 42 26 4.5 3. SLOPES FROM SPILLWAY BOTTOM TO TOP OF WITH SST 3"U BOLT LIFT LUG ELEVATION N BERM SHOULD BE NO STEEPER THAN 2:1 48 16 29 58 48 28 5 7 La 6" SPACED HORIZONTALLY ALL DIMENSIONS IN INCHES 24 114 /2"X 2"ALUMINUM BARS 51 FOREBAY FILTER DRAIN DETAIL AS SHOWN DIM A=8"MINIMUM 2 NOT TO SCALE b INITIAL PLAN DATE:09/20/2023 18"MINIMUM PIPE DIAMETER 12"(MIN) 1 ACCOMMODATES A 48"X 48"I.D. 5 FOR BOTH A 6"AND 8"WALL REVISIONS: PRECAST RISER 1 05/15/2024 A �\/ A REVISED PLANS PER REVIEW COMMENTS w STRUCTURE BALLAST CONCRETE , a' 0 o (SEE RISER DETAILS FOR REQUIRED QUANTITY) a, 2 aO ( RIPRAP a 48"I.D. r� (SEE PLAN FOR 6 8 SQUARE b SECTION VIEW SECTION VIEW N O.D. F STRUCTURE o SIZE AND DEPTH) MIN,'.;, IF WALL IS 8" IF WALL IS b" MIN 3" O.D.OF STRUCTURE INSTALL HORIZONTAL DOWELS `�u CLEAR(TYP) IN RISER STRUCTURE TO ° a o SUPPORT CONCRETE COLLAR MIN 3" 12" O O O ` SECTION VIEW CLEAR(TYP) 6„ 3 9' REBAR @ 12"O.C.(±). MIN NOTES a ° SEE ANCHOR DETAIL MIN ( ) TRASH RACK DETAIL BASED ON POMONA PIPE PRODUCTS"STANDARD a° ° 12" ALUMINUM BAR&ANGLE PEAKED ROOF TRASH RACK WITH ONE ° O O QUADRANT HINGED FOR MANWAY ACCESS TO FIT 48"x48"1.D.CONCRETE RISER WITH 6"OR 8"THICK WALLS". o OR SUBGRADE AS APPROVED BY #4 REBAR 2 DOWEL#4 REBAR x 12" 2. TRASH RACK TO BE POWDER-COATED BLACK. INSTALL HORIZONTAL DOWELS GEOTECHNICAL ENGINEER @ 2 FT.o.c.+/-(3 PER SIDE) u (2 MATS) IN RISER STRUCTURE TO PLAN VIEW 12"MIN a, SUPPORT CONCRETE COLLAR 4' TRASH RACK m ALL IDES RGRCP REBAR @ 12"O.C.(±). RGRCP NOT TO SCALE (SEE ANCHOR DETAIL) ANCHOR DETAIL (TYPICAL) o a a a Q La NOT TO SCALE EXISTING OR u as Q ° ° SLOPE VARIES ° J w FINISHED GRADE BALLAST CONCRETE GROUT ?w o FOREBAY ENTRANCE (MIN) 4"TOPSOIL a a (SIZED FOR ANTI-FLOTATION) Q o a o DEPTH 10' MIN ��/ TO BE GRADED DEEPER ? (SEE STRUCTURE DETAILS) Z o VEGETATED SHELF THAN FOREBAY EXIT FOREBAY FILTER DRAIN VEGETATED SHELF GEOTEXTILE FABRIC _ F (SEE PLAN FOR LOCATION) = =III=III=III=III=III= — WR JOB NUMBER 02190647 Lm VARIES (TO COMPLY WITH NCDOT III— -- t 1-III—III—I I—_ ' S'MIN =111=111=III=11I-11I-11I-11I-111=III=11—I I— DRN:wR DGN:wR cKD:wR COMPACTED STONE BASE OR STANDARD SPECIFICATION RIPRAP "=11- - — — NORMAL POOL INSTALL HORIZONTAL DOWELS (SEE PLAN FOR SIZE AND DEPTH) "III-1 I—III—I — ' ' ' ' ' ' —III—I —III-1 "=III-1 —I —I -- SUBGRADE AS APPROVED BY IN RISER STRUCTURE TO BALLAST CONCRETE SECTION 1056) ;— —I ;— � ' —111-III=11I 1=III=11I_ — III—III—III—I I ENGINEER SUPPORT CONCRETE COLLAR "=III =_ _ FOREBAY — —III=11— GEOTECHNICAL "'=III=III=III= — (SIZEDFORANTI FLOTATION) -iI1— — — FOREBAYBERM — - — — _ SCM WET POND REBAR @ 12"O.C.(+). (SEE STRUCTURE DETAILS) SECTION "A-A" III III — '— =III=III=III= — —111I-11I—_ — I-III="' "=111=III=11I-11— (SEE ANCHOR DETAIL) =11I—I — —III=11' "=111=111=III=11 DETAILS III=III CLAY LINER" 11=III='' "=III CROSS-SECTION VIEW LONGITUDINAL SECTION VIEW —III—�— =III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=III=ITI Ii —� RIPRAP VELOCITY D I S S I PATO R -III III=111-1 I-III-III-III—III—III—III—III—III-III-III-III—III—III—III—III—III—III—III—III—III-111= ''=1 —1 I CONCRETE PIPE COLLAR AT STRUCTURE DETAIL (ADAPTED FROM HEC-14 & NYSDOT) WET POND GRADING DETAIL C9,06 Y NOT TO SCALE NOT TO SCALE NOT TO SCALE