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Home My WebLink About2958-5F STANDARD PLAN METRIC 331 - 2 SHEET 20F2 1 _ I. REINFORCED LINE RCP OR CEO MONOLITHIC 1 E AND F BARS ARCH. SEE NOTE 2 c4 REINFORCING STEEL STANDARD PLAN METRIC 331 - 2 SHEET 20F2 I. REINFORCED LINE RCP OR CEO MONOLITHIC 1 E AND F BARS ARCH. SEE NOTE 2 c4 rllr,�I- ,/�OUND I EDGES I \ J ELEV. S 1 SEE NOTE 1 - USE WITH STANDARD 8PE gFICAT10N8 FOR PUBLIC WORKS CO CONSTRUCTION N I H. SEE NOTE 8 3'-0.1 D RSL i - UNDISTURBED EARTH H 1 H 80 mn (39 MIN. �_jI I;r 3'-8" SECTION t LATERAL/" 80 mm SEE NOTE 3 (34 MIN. 7'-3" 1 CONNECTOR PIPE _ STA. POINT fJ I ISSEENOTE2- B k T 4-6.. - 4 12" 5'-411 w y I 1 0 BARS I 8 F ROUND I 15M 0150 mm m EDGEO 6•)I OC - - - - --- O.C. EA. WAY EA. 300 mm 029 ao 4 75 mm '0• (#4 ♦ g\ 0 I(3•f R I W_ ? 1 Z , -- - .... � _ ION 0 450 mm Z (•3 OR 04 O 18•) I I w o rc! x W O 1 OC TIE BARS REINFORCING STEEL STANDARD PLAN METRIC 331 - 2 SHEET 20F2 80 mm 3•1 MIN. 1 E AND F BARS SPRING LINE rllr,�I- ,/�OUND I EDGES I \ GREENBOO K COMMITTEE ,. ELEV. S 1 (!5 O 3•1,OC. - USE WITH STANDARD 8PE gFICAT10N8 FOR PUBLIC WORKS CO CONSTRUCTION 3'-d' SEE NOTE 8 3'-0.1 r i - UNDISTURBED EARTH H 1 H !QI CONNECTOR PIPE 3'-8" SECTION Z -Z AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER _ STANDARD PLAN METRIC 331 - 2 SHEET 20F2 :.RNS BTDSJUNCT10N STRUCTURE PIPE TO PIPEI�,�CwoRKs NLE E AND F BARS STAND) INC.,C .. - 15M O 75,mm GREENBOO K COMMITTEE ,. ID >6_00 mmc4 ORID>A�LINE 3 2 1. (!5 O 3•1,OC. - USE WITH STANDARD 8PE gFICAT10N8 FOR PUBLIC WORKS CO CONSTRUCTION 3'-d' SEE NOTE 8 3'-0.1 r i - S o STA. POINT TABLE OF 42" !QI CONNECTOR PIPE 3'-8" a-6" �� 80 mm SEE NOTE 3 (34 MIN. 7'-3" VALUES FOR T _ STA. POINT fJ I ISSEENOTE2- B k T 4-6.. - 4 12" 5'-411 SEE NOTE 3 PLAN - - - - --- O.C. EA. WAY EA. 300 mm 029 130 mm (5•) 375 mm U54 130 mm (51 450 mm (101) 130 mm (54 325 mm (21.1 130 mm (59 IOM O 450RIM 600 mm (249 140 am IS 1/2`) (03 ORIE ".0 18.) OC OC TIE BAR /_�_G �REINFORCING 873 mm (2T) 140 mm (5 1/2•) BARS ISMO I50 mm • (4O6.1 OC 730 mm 4309 ISO mm(6•) 825'mm (33.1 170 mm (6 1/29 800 mm 136) 170 mm (6 1/29 N � m F�x,-- 97s mm (39) 180 m (71) T 13 E: E N TIE BARS o� IRS 15M 4,501 ELEV.v .. � mm (3') OC 3"MIN. I_ 3"MIN. I * i „' o io I 4 08 3 12 + G BARS F0 OC �. 755Rmm (3') Io � -CONCRETE CRADLE. 2"44 OR* v °D. ,v N 263-C-14 (450-C-2000), SEE NOTE 2 CONTINUoOUS BAR' 4 #5 12" 90 BEND SEE NOTE 9 SECTION M -M AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER _ STANDARD PLAN METRIC 331 - 2 SHEET 20F2 :.RNS BTDSJUNCT10N STRUCTURE PIPE TO PIPEI�,�CwoRKs NLE DARD PL..A. NPRgAULOATED STANDARD N STAND) INC.,C .. - _;, METRIC GREENBOO K COMMITTEE ,. ID >6_00 mmc4 ORID>A�LINE 3 2 1. REV1998 .SHEET 1 F 2 O USE WITH STANDARD 8PE gFICAT10N8 FOR PUBLIC WORKS CO CONSTRUCTION I { )c N STE4 STRAP 1NITN 1 va" WLT GRATE ASSEMBLY DETAIL , �t` I'MN, FREE9QApp K 31-d'NIN. •--•t--- I ` / r�dtG�a/1111!(AISVr �Ir T/q(/ i/!"XI!"(MAX.I>1LOT 71YR atMO1* Totl. I- Gtf WA Z MIN. Cf11: In st)IOgpllp :f + • IrMNL feQ"MAW TEEXT TEE OEM* •••-"1 ^ 1111 1 �t OoNC11ETE FooTll JNa r Mlm. .'�*:¢'_'' ! :Is4`" MIN. INSEE TO DRAIN 0 , �I; ;;. !•' I AWCIKIR IIWK MIN. S SACK / C.Y. OORCftrM OR METHOD APPROVED By aftowe OFFICIAL BRAIN PIPE a RISER W SCAL19 ORANGE COUNTY ENVIRONMENTALNAGEMENT AGENCY 5iQ PLAP , 1327 DESILTING BASIN SHEET 6 OF s NOTES I. THIS JUNCTION STRUCTURE SHALL BE USED WHEN THE OUTSIDE DIAMETER OF THE LATERAL IS GREATER THAN 1/2 THE INSIDE DIAMETER D OF THE MAIN LINE. OR WHEN THE INSIDE DIAMETER B OF THE LATERAL IS GREATER THAN 600 mm (24"). B SHALL NOT EXCEED .75 D OR 975 mm (39-). 2. IF THE MAIN LINE IS A REINFORCED MONOLITHIC ARCH STORM DRAIN. D SHALL REFER TO THE CLEAR SPAN OF THE ARCH. REINFORCING STEEL SHALL BE CUT AND BENT INTO THE JUNCTION STRUCTURE IN THE SAME MANNER AS FOR A PIPE. A CONCRETE CRADLE IS NOT REQUIRED FOR A REINFORCED MONOLITHIC ARCH. 3. STATIONS .SHOWN ON THE PROJECT DRAWINGS FOR LATERALS APPLY AT THE INTERSECTION OF CENTER LINES OF MAIN LINE AND LATERAL. -STATIONS SHOWN ON THE PROJECT DRAWINGS FOR CATCH BASIN CONNECTOR PIPES APPLY AT THE INTERSECTION OF THE INSIDE WALL OF THE MAIN LINE WITH THE CONNECTOR PIPE CENTER LINE. 4. VALUES FOR A. B. C AND D SHALL BE SHOWN ON THE 'PROJECT DRAWINGS. ELEVATION R AND ELEVATION S SHALL BE SHOWN ONLY WHEN REQUIRED PER NOTE 5. 5. a. ELEVATIONS R AND S NEED NOT BE SHOWN ON THE PROJECT DRAWINGS IF THE INLET PIPE IS TO ENTER THE MAIN LINE RADIALLY, b. ELEVATION R SHALL BE SHOWN ON THE PROJECT DRAWINGS ONLY IF A STUB IS TO BE PROVIDED IN THE -MAIN LINE FOR FUTURE' CONNECTION OF AN INLET PIPE. c. ELEVATION S SHALL BE SHOWN, ON THE, PROJECT DRAWINGS IF AN INLET PIPE IS TO ENTER THE MAIN LINE OTHER THAN RADIALLY. INLET PIPE SHALL BE LAID ON A STRAIGHT GRADE FROM ELEVATION S TO THE CATCH BASIN OR GRADE BREAK IN LINE. 6. THE INLET PIPE SHALL ENTER THE MAIN 'LINE RADIALLY UNLESS OTHERWISE INDICATED. THE INLET PIPE MAY ENTER THE MAIN LINE OTHER THAN RADIALLY IF ANGLE A IS GREATER THAN 450, B`IS LESS THAN OR EQUAL TO 600 mm (24") AND THE OUTSIDE DIAMETER OF THE INLET PIPE IS LESS THAN .5 D: OTHERWISE. STANDARD PLAN 340 SHALL BE USED. 7. NO MORE THAN ONE OPENING SHALL BE MADE IN ANY ONE SECTION OF PIPE. 8. THE OPENING FOR THE BREAKOUT SHALL BE RECTANGULAR AND CUT NORMAL TO THE PIPE SURFACE WITHOUT DAMAGING THE REINFORCING STEEL. THE TRANSVERSE REINFORCEMENT OF THE MAIN LINE SHALL BE CUT AT THE CENTER 0 - F THE OPENING AND BENT INTO THE TOP AND BOTTOM SLABS OF THE SPUR. 9. THE MAIN LINE SHALL BE REINFORCED WITH A CONCRETE CRADLE AND ENCASEMENT (AS APPLICABLE). A CONCRETE ENCASEMENT IS REQUIRED IF A, JOINT IN THE,MAIN LINE FALLS WITHIN THE LIMITS OF THE CRADLE. THE CONCRETE ENCASEMENT SHALL EXTEND 300 mm (12•) ABOVE THE TOP OF THE MAIN LINE AND TO THE LIMITS OF :THE CRADLE IF CONNECTING TO AN EXISTING STORM DRAW, 'PORTION OF CRADLE OPPOSITE INLET MAY BE OMITTED. 10.. REINFORCING STEEL SHALL CONFORM TO ASTM A 615M, GRADE 300. (ASTM A 615, GRADE 40). AND BE PLACED 40 mm (1 1/2'11 CLEAR FROM CONCRETE SURFACES, UNLESS OTHERWISE SHOWN F BARS SHALL BE CARRIED TO A POINT NOT LESS THAN J DISTANCE FROM CENTER LINE WITH J=7D/12 + 150 mm (6-). IL FLOOR OF THE SPUR SHALL BE. STEEL -TROWELED TO THE SPRING LINE OF THE SPUR. 12. DIMENSIONS SHOWN ON THIS PLAN FOR METRIC AND ENGLISH UNITS ARE NOT EXACT EQUAL VALUES. IF METRIC VALUES ARE USED. ALL VALUES USED FOR CONSTRUCTION SHALL BE METRIC VALUES, EXCEPT REINFORCING BARS SIZES IN ENGLISH UNITS MAY BE. SUBSTITUTED FOR METRIC BAR; SIZES. .IF ENGLISH UNITS ARE USED. ALL VALUES USED FOR 'rnNRTRI1rTlnu cu AI i oc rum IOU -11 - AMERICAN PUBLIC WORKS ASSOCIATION .SOUTHERN CALIFORNIA C R STANDARD PLAN METRIC 331 - 2 SHEET 20F2 _._PTE JUNCTION STRUCTURE TORE PIPETIO O PIPE INLET331-2 ID _ 600 mm 24 OR > 112 MAIN LINE _._ E ID AMERICA - " N PUBLIC WORKS AS _ SOCIATION SOUTHERN CALIFORNIA RNIA CHAPTE R LGTED BYHE PUBLIC WORKS BTAN ARSIN MAN HOLE PI PE TO PIPE ONE OR, BOTH LANPROMU STANDARDP" METRIC GREENBOOK�IIEE �MAIN LINE DS 825rnm 33OR SMALLER) " . 321 -1 REV. 1889WI SHEET 1 OF 3 : USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION AMERICAN PUBLIC WORKS ASSOCIATION IATI ON SOUTHERN N CALIF R 44 C O N CHAPTER STANDARD PLAN METRIC 321 1IDS825mm SHEET 2DF3 MANHOLE OLE P IPE TO PIPE (ONE OR BOTH AIN LN E 33 OR SMALLER AMERICAN PUBLIC WORKS N_ ASSOCIATION WT) .SOUTHERN CALIFORNIA CHAPTER STANDARD PLAN METRIC 321 - 1 SHEET3OF.1 MANHOLE PIPE TO P .IPEN O EOR BOTH MAIN LINE ID'S 825mm 33 OR SMALLER 1. HEADWALL SHALL BE CONSTRUCTED OF CLASS A CONCRETE. 2. REINFORCING STEEL SHALL BE NO. 4 BARS FOR "W" UP TO 60". ABOVE DW"=60" NO. 5 BARS SHALL BE USED. 2" MIN CLEARANCE,30 DIAMETER LAP, ALL STEEL. 3. ADJACENT SLOPES SHALL BE 1= TO 1 OR FLATTER, 4. MULTIPLE PIPES TO BE SET WITH LONG ITUDINAL CENTERS 1 2/3 DIAMETERS APART. 5. ALL EXPOSED CORNERS TO BE ROUNDED 3/4" RADIUS._ 6. W SHALL BE INCREASED WHEN MULTIPLE PIPES OR PIPES ON SKEW ARE USED. SAN eERNARallo COUNTY aoao DEPARTMENT DoE: m ,C vt.7 a .HEADWALL ' M. A. Nicholas 209 C uNTY ENGINEER WING1,- TYPE CROSSING PIPE WALL (DIAMETER OF PIPE _ DI) OPTIONAL SIDE OF(SEE NOTE 3) BLANKET (TYP.) a �' CONCRETE BLANKET (CLASS 265C14 a 2 (450-C-2000) CONCRETE) I(Trp.) Z " Do/2 FOR D > 375 mm (15") UNDISTURBED EARTH (TYP.) 150 mm ' 3Da/4 FOR D s 373 mm 059 EXISTING PIPE (6•) MIN. OUTSIDE OF PIPE BELL (TYP.) CONCRETE BLANKET (FOR EXISTING PIPES CROSSED OVER BY A NEW PIPE) NOTES: 1• CONCRETE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN 450 ImR (18 IN.). 2. Y = 0/6 (150 mm (6 IN.) MIN.). WHERE THE CLEARANCE BETWEEN THE TOP OF THE EXISTING, PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN Y. THE CONCRETE SHALL BE PLACED BETWEEN THE PIPES AND AROUND THE SIDES OF THE CROSSING PIPE UP TO A LEVEL EQUAL TO Y ABOVE THE EXIST- ING PIPE. OR AS REQUIRED BY NOTE 3 BELOW, WHICHEVER IS HIGHER, ' 3. X = D/12. MINIMUM, ,TO PROVIDE BEDDING MATERIAL FOR THE CROSSING CONDUIT. WHEN X IS LESS THAN THIS MINIMUM, THE ENTIRE TOP SURFACE OF THE BLANKET SHALL BE RAISED TO MAKE CONTACT . WITH THE LOWER 90. OF THE CROSSING PIPE. 4. THE BLANKET SHALL EXTEND LONGITUDINALLY TO THE FIRST JOINT BEYOND THE TRENCH EXCAVATION AT EACH END OF THE BLANKET. EXCEPT THAT THE BLANKET NEED NOT BE EXTENDED MORE THAN 1.2 In (4 FT.) BEYOND THE TRENCH. 5. WHENEVER A PIPE BELL IS ENCOUNTERED WITHIN THE LIMITS OF THE BLANKET, ALL DIMENSIONS SHALL REFER TO THE BELL. INVERT SLAB OF ARCH OR BOX 150mm 150 In 50 mm (2") THICK STYROFOAM OR. SECTION (CROSSING CONDUIT)(6.) (6') OTHER APPROVED COMPRESSIBLE - MATERIAL 1 �� I UNDISTURBED EARTH--/, �i NO MINIMUM EXISTING PIPE�� OUTSIDE OF PIPE BELL COMPRESSIBLE BLANKET (FOR EXISTING PIPES CROSSED OVER BY, A NEW BOX OR ARCH) NOTES) I. COMPRESSIBLE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING CONDUIT (BOX OR ARCH) IS LESS THAN 450 mm (18 IN.). 2. THE BLANKET SHALL EXTEND LONGITUDINALLY FOR THE FULL CROSSING CONDUIT TRENCH WIDTH. 3. DIMENSIONS*, SHOWN ON THIS PLAN FOR METRIC AND ENGLISH UNITS ARE NOT EXACT EQUAL VALUES. IF METRIC VALUES ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE METRIC VALUES. WITH THE EXCEPTION OF REINFORCING BAR SIZES FOR WHICH ENGLISH (IMPERIAL) BAR SIZES MAY BE SUBSTITUTED FOR METRIC BAR SIZES. IF ENGLISH UNITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE ENGLISH VALUES. AMERICAN PUBLIC WORKS ASSOCIATION -SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY THE - STANDARD'PLAN PUBLIC WORKS STANDARDS INC., BLANKET PROTECTION FOR PIPES Mme'° GREEN800K COMMITTEE ' 961 225-1 - 1 REV. 1998 .. .:.:.. USE WITH DIMENSIONS PIPE DIAM. . L E E W 1 I HEADWALL SHALL BE MONOLITHIC, 4-9' 2'-8' 4'-0" A I LAP, ALL BARS AT CORNERS 30 DIAMETERS 30" 5'-5": 3'-d' IF NOT CONTINUOUS. 3'-0.1 36' 6'-0": 2 '5'-0" V-8" 42" 6'-7" 3'-8" a-6" 4-2" 48' 7'-3" 4'-0"' 6'-O" fJ I ISSEENOTE2- L54 .. 8 -2,. 4-6.. - 4 12" 5'-411 - - - - --- O.C. EA. WAY EA. AE 1b PLAN DETAIL �REINFORCING N � m F�x,-- /��w 3"MIN. I_ 3"MIN. I * i „' o io I 4 08 3 12 + O.C. EA. WAY p �\ GROUND I SEE NOTE! 4 N �. Io � 2"44 OR* v °D. ,v N SEE NOTE 2 CONTINUoOUS BAR' 4 #5 12" 90 BEND B. O.C. EA. WAY ELEVATIONSEE NOTE 2 SECTION A -A NOTES: 1. HEADWALL SHALL BE CONSTRUCTED OF CLASS A CONCRETE. 2. REINFORCING STEEL SHALL BE NO. 4 BARS FOR "W" UP TO 60". ABOVE DW"=60" NO. 5 BARS SHALL BE USED. 2" MIN CLEARANCE,30 DIAMETER LAP, ALL STEEL. 3. ADJACENT SLOPES SHALL BE 1= TO 1 OR FLATTER, 4. MULTIPLE PIPES TO BE SET WITH LONG ITUDINAL CENTERS 1 2/3 DIAMETERS APART. 5. ALL EXPOSED CORNERS TO BE ROUNDED 3/4" RADIUS._ 6. W SHALL BE INCREASED WHEN MULTIPLE PIPES OR PIPES ON SKEW ARE USED. SAN eERNARallo COUNTY aoao DEPARTMENT DoE: m ,C vt.7 a .HEADWALL ' M. A. Nicholas 209 C uNTY ENGINEER WING1,- TYPE CROSSING PIPE WALL (DIAMETER OF PIPE _ DI) OPTIONAL SIDE OF(SEE NOTE 3) BLANKET (TYP.) a �' CONCRETE BLANKET (CLASS 265C14 a 2 (450-C-2000) CONCRETE) I(Trp.) Z " Do/2 FOR D > 375 mm (15") UNDISTURBED EARTH (TYP.) 150 mm ' 3Da/4 FOR D s 373 mm 059 EXISTING PIPE (6•) MIN. OUTSIDE OF PIPE BELL (TYP.) CONCRETE BLANKET (FOR EXISTING PIPES CROSSED OVER BY A NEW PIPE) NOTES: 1• CONCRETE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN 450 ImR (18 IN.). 2. Y = 0/6 (150 mm (6 IN.) MIN.). WHERE THE CLEARANCE BETWEEN THE TOP OF THE EXISTING, PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN Y. THE CONCRETE SHALL BE PLACED BETWEEN THE PIPES AND AROUND THE SIDES OF THE CROSSING PIPE UP TO A LEVEL EQUAL TO Y ABOVE THE EXIST- ING PIPE. OR AS REQUIRED BY NOTE 3 BELOW, WHICHEVER IS HIGHER, ' 3. X = D/12. MINIMUM, ,TO PROVIDE BEDDING MATERIAL FOR THE CROSSING CONDUIT. WHEN X IS LESS THAN THIS MINIMUM, THE ENTIRE TOP SURFACE OF THE BLANKET SHALL BE RAISED TO MAKE CONTACT . WITH THE LOWER 90. OF THE CROSSING PIPE. 4. THE BLANKET SHALL EXTEND LONGITUDINALLY TO THE FIRST JOINT BEYOND THE TRENCH EXCAVATION AT EACH END OF THE BLANKET. EXCEPT THAT THE BLANKET NEED NOT BE EXTENDED MORE THAN 1.2 In (4 FT.) BEYOND THE TRENCH. 5. WHENEVER A PIPE BELL IS ENCOUNTERED WITHIN THE LIMITS OF THE BLANKET, ALL DIMENSIONS SHALL REFER TO THE BELL. INVERT SLAB OF ARCH OR BOX 150mm 150 In 50 mm (2") THICK STYROFOAM OR. SECTION (CROSSING CONDUIT)(6.) (6') OTHER APPROVED COMPRESSIBLE - MATERIAL 1 �� I UNDISTURBED EARTH--/, �i NO MINIMUM EXISTING PIPE�� OUTSIDE OF PIPE BELL COMPRESSIBLE BLANKET (FOR EXISTING PIPES CROSSED OVER BY, A NEW BOX OR ARCH) NOTES) I. COMPRESSIBLE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING CONDUIT (BOX OR ARCH) IS LESS THAN 450 mm (18 IN.). 2. THE BLANKET SHALL EXTEND LONGITUDINALLY FOR THE FULL CROSSING CONDUIT TRENCH WIDTH. 3. DIMENSIONS*, SHOWN ON THIS PLAN FOR METRIC AND ENGLISH UNITS ARE NOT EXACT EQUAL VALUES. IF METRIC VALUES ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE METRIC VALUES. WITH THE EXCEPTION OF REINFORCING BAR SIZES FOR WHICH ENGLISH (IMPERIAL) BAR SIZES MAY BE SUBSTITUTED FOR METRIC BAR SIZES. IF ENGLISH UNITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE ENGLISH VALUES. AMERICAN PUBLIC WORKS ASSOCIATION -SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY THE - STANDARD'PLAN PUBLIC WORKS STANDARDS INC., BLANKET PROTECTION FOR PIPES Mme'° GREEN800K COMMITTEE ' 961 225-1 - 1 REV. 1998 .. .:.:.. USE WITH DIMENSIONS PIPE DIAM. . L E E W 24" 4-9' 2'-8' 4'-0" 2'-6" 30" 5'-5": 3'-d' 4-6" 3'-0.1 36' 6'-0": 3-4" '5'-0" V-8" 42" 6'-7" 3'-8" a-6" 4-2" 48' 7'-3" 4'-0"' 6'-O" 4'-10° L54 .. 8 -2,. 4-6.. 6'-9, 5'-411 1. HEADWALL SHALL BE CONSTRUCTED OF CLASS A CONCRETE. 2. REINFORCING STEEL SHALL BE NO. 4 BARS FOR "W" UP TO 60". ABOVE DW"=60" NO. 5 BARS SHALL BE USED. 2" MIN CLEARANCE,30 DIAMETER LAP, ALL STEEL. 3. ADJACENT SLOPES SHALL BE 1= TO 1 OR FLATTER, 4. MULTIPLE PIPES TO BE SET WITH LONG ITUDINAL CENTERS 1 2/3 DIAMETERS APART. 5. ALL EXPOSED CORNERS TO BE ROUNDED 3/4" RADIUS._ 6. W SHALL BE INCREASED WHEN MULTIPLE PIPES OR PIPES ON SKEW ARE USED. SAN eERNARallo COUNTY aoao DEPARTMENT DoE: m ,C vt.7 a .HEADWALL ' M. A. Nicholas 209 C uNTY ENGINEER WING1,- TYPE CROSSING PIPE WALL (DIAMETER OF PIPE _ DI) OPTIONAL SIDE OF(SEE NOTE 3) BLANKET (TYP.) a �' CONCRETE BLANKET (CLASS 265C14 a 2 (450-C-2000) CONCRETE) I(Trp.) Z " Do/2 FOR D > 375 mm (15") UNDISTURBED EARTH (TYP.) 150 mm ' 3Da/4 FOR D s 373 mm 059 EXISTING PIPE (6•) MIN. OUTSIDE OF PIPE BELL (TYP.) CONCRETE BLANKET (FOR EXISTING PIPES CROSSED OVER BY A NEW PIPE) NOTES: 1• CONCRETE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN 450 ImR (18 IN.). 2. Y = 0/6 (150 mm (6 IN.) MIN.). WHERE THE CLEARANCE BETWEEN THE TOP OF THE EXISTING, PIPE AND THE BOTTOM OF THE CROSSING PIPE IS LESS THAN Y. THE CONCRETE SHALL BE PLACED BETWEEN THE PIPES AND AROUND THE SIDES OF THE CROSSING PIPE UP TO A LEVEL EQUAL TO Y ABOVE THE EXIST- ING PIPE. OR AS REQUIRED BY NOTE 3 BELOW, WHICHEVER IS HIGHER, ' 3. X = D/12. MINIMUM, ,TO PROVIDE BEDDING MATERIAL FOR THE CROSSING CONDUIT. WHEN X IS LESS THAN THIS MINIMUM, THE ENTIRE TOP SURFACE OF THE BLANKET SHALL BE RAISED TO MAKE CONTACT . WITH THE LOWER 90. OF THE CROSSING PIPE. 4. THE BLANKET SHALL EXTEND LONGITUDINALLY TO THE FIRST JOINT BEYOND THE TRENCH EXCAVATION AT EACH END OF THE BLANKET. EXCEPT THAT THE BLANKET NEED NOT BE EXTENDED MORE THAN 1.2 In (4 FT.) BEYOND THE TRENCH. 5. WHENEVER A PIPE BELL IS ENCOUNTERED WITHIN THE LIMITS OF THE BLANKET, ALL DIMENSIONS SHALL REFER TO THE BELL. INVERT SLAB OF ARCH OR BOX 150mm 150 In 50 mm (2") THICK STYROFOAM OR. SECTION (CROSSING CONDUIT)(6.) (6') OTHER APPROVED COMPRESSIBLE - MATERIAL 1 �� I UNDISTURBED EARTH--/, �i NO MINIMUM EXISTING PIPE�� OUTSIDE OF PIPE BELL COMPRESSIBLE BLANKET (FOR EXISTING PIPES CROSSED OVER BY, A NEW BOX OR ARCH) NOTES) I. COMPRESSIBLE BLANKET IS REQUIRED WHEN THE CLEARANCE BETWEEN THE TOP OF THE EXISTING PIPE AND THE BOTTOM OF THE CROSSING CONDUIT (BOX OR ARCH) IS LESS THAN 450 mm (18 IN.). 2. THE BLANKET SHALL EXTEND LONGITUDINALLY FOR THE FULL CROSSING CONDUIT TRENCH WIDTH. 3. DIMENSIONS*, SHOWN ON THIS PLAN FOR METRIC AND ENGLISH UNITS ARE NOT EXACT EQUAL VALUES. IF METRIC VALUES ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE METRIC VALUES. WITH THE EXCEPTION OF REINFORCING BAR SIZES FOR WHICH ENGLISH (IMPERIAL) BAR SIZES MAY BE SUBSTITUTED FOR METRIC BAR SIZES. IF ENGLISH UNITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE ENGLISH VALUES. AMERICAN PUBLIC WORKS ASSOCIATION -SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY THE - STANDARD'PLAN PUBLIC WORKS STANDARDS INC., BLANKET PROTECTION FOR PIPES Mme'° GREEN800K COMMITTEE ' 961 225-1 - 1 REV. 1998 .. .:.:.. USE WITH DIAL BEFORE r YOU DIG I TOLL FREE A PUBLIC SERVICE f d STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION SHEEP 1 OF 1 DIAL BEFORE r YOU DIG I TOLL FREE A PUBLIC SERVICE f d BY 'OND '. E t, SHOWN HER EON �R BY. AND CA °oo RR(ED F � 1 ORTH IN A DILIGENT MAN osQ_ 1 CHURCH MANNER, 1 _ STREET, STN. 107 AWN _ W . Q rn E. TWO � No. 14814. 4 1 8 4 SCALE: r*1 ATS _40, RANCHO CUCAM 0N GA CA 9 ` 17 � 30 ,. SUMMIT WORKING �IG - T PHONE HE CITY sos .ENGIN 948-1311 DAYSREQUIRE BEFORE REVISIONS ) _ SI ONS TOT Exp: .3-31-05 _ THEPLAINS TO DESIGNED BY: DATE: YOU DIG , , TRACT 16137 ATS 6 200 1 BRING G TH EM 1 P INTO CONFORMANCE CE WITH CONDITIONS I -800-227-2600 � AND cV .. '9 Date CHECKED BY. • APPROVED BY: _ l _ o � _ 0 F CA F L DRAWING NO.. Z GR ,. BUND SERV ICE ALERT R E1 __ 5 4 14 ' 8 'EXP. T 3 1 SAND 05 AR O DS IN EFF �J 1 E CT. .,r.G.� I�-wo O z C 3 i 2958 PITY Y ENGINEER R.C. - _ E. �t _D DATE A E 4 4 _ 5 J:\647-1443\storm\Sd-sht5_dwn_ i n/pgim i 1 *a•n4 nnn ';=