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Home My WebLink About3123-4FACE .I PLATE - -- SCORING LINE 2 EXTRA 15M(*4) ON 2 SIDES OF MANHOLE FRAME AND COVER �� CATCH BASIN II E MANHOLE FRAME AND COVER II o O N A A rn 15M O 300 mm(e4012') PLATE ASSEMBLY EACH WAY 5 mm(1/4•)R \FACE STREET, GUTTER, OR LOCAL DEPRES- ��bL � SION SURFACE -7 100 mm (4')R �I `: m -j ��bL � FLOW LINE f 125 mm (51 300 a 75 mm J/ 4, - REV, 1998 .r USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION (3'lR 225 mm (91 DOWEL (TYPA 225 mm (91 EE E 250 mm (10.1 100 mm 250 mm 001 1500 mm (60' of 275 mm (11') 1650 r -m (66' _ m c N N' n DOWEL (TYP.)- CURB LINE / - � POINT C �� STRg1GFIT +' STEPS - i GRADE RADEPOINT POINTE� IF 4 '-POINT F A PLAN w 1 � m 100 mm m - (4')MIN. Z U 300 mm75 mm u LF (121MAX. (3')R o fes-- r CASE A Uj --- L W D L Z CURB CATCH OPENING BASIN (S) _ wa wa� n3z0 I I I _ Vl� of i- POINT A--' --- �Pp�-POINT B/Ri G POINT C- Cy, _ oz 'o OPTIONAL SUBGRADE CONNECTOR PIPE Q-� OR MONOLITHIC zoE CATCH BASIN -U) g CONNECTION SECTION A -A 200 mm(8') �IOW@4) c>Oe �y DOWEL DETAIL AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER L T STANDARD PLAN z STEPS f- GREENBOOK COMMITTEE 125 mm (51 300 - E W- - REV, 1998 SHEET 1 OF 2 USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION 450 mm (181) 225 mm (91 1050 mm (421 450 mm (181 225 mm (91 1200 mm (48'1 450 mm (18') 250 mm (10.1 100 mm 250 mm 001 1500 mm (60' 525 mm (21') 275 mm (11') 1650 r -m (66' 525 mm (21.1 m • 600 mm (24' rY 1 45o mm DOWEL (TYP.)- LU PLAN V POINT C �� STRg1GFIT SECTION A -A 200 mm(8') �IOW@4) c>Oe �y DOWEL DETAIL AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER L T STANDARD PLAN PROMULGATED BY PUBLIC WORKS STANDARDS INC. ` CURB�OPENING CATCH BASIN METRIC GREENBOOK COMMITTEE 125 mm (51 300 1984 150 mm (61 - REV, 1998 SHEET 1 OF 2 USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION 15M 0 300 mm (*4 Q 12'330-C-23 (560-C-3250) CONCRETE L/2 (TYP.)-\ 1 7 /-- 25 mm (I') (TYPA i I j / oN ( / NEW OR EXIST. PIPE FLOW I / a £k S TSR Ft W <A I- r � 15M O' 300 mm (•4 0 121 - 150 mm 6') MIN CUT 3-15M (*4) CIRCULAR TIES, SEE NOTE 9 NO. 2 CUT NO. 1 LINE 4 0 CUT 900 NO. 2 LINE 150 mAn CUT N( 6') MIN 3.14 (DO -V, DETAIL "A" (SEE NOTE 10) SONO -TUBE, OR EQUAL, INTERIOR FORM CUT NO. 1: SAW THE TUBE AT AN ANGLE OF A/2 WITH THE TRANS- VERSE PLANE. REVERSE ONE SECTION AND TAPE BOTH SECTIONS TOGETHER FORMING THE DEFLECTION ANGLE A. CUT NO. 2, SAW THE TUBE LONGITUDINALLY REMOVING A STRIP 3.14 (DO -D 1 WIDE ON THE SIDE OPPOSITE THE OPEN JOINT. BEND THE ENDS OF THE CUT TOGETHER AND INSERT THE TUBE IN THE PIPE. D L T 300 mm 021 300 mm (12') 100 mm (41 450 mm 089 300 mm (121 125 mm (51 600 mm (241 300 mm (121 150 mm (61 750 mm (301 450 mm (181 175 mm (71 900 mm (361 450 mm (181) 225 mm (91 1050 mm (421 450 mm (181 225 mm (91 1200 mm (48'1 450 mm (18') 250 mm (10.1 1425 mm (571 450 mm (181) 250 mm 001 1500 mm (60' 525 mm (21') 275 mm (11') 1650 r -m (66' 525 mm (21.1 275 mm (II') 1800 mm (721 600 mm (24' 300 mm (121 o. w INTERIOR SURFACE OF PIPE DETAIL "B" TYPICAL JOINT FOR REINFORCED CONCRETE PIPE AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY THE CONCRETE COLLAR FOR RCP STANDARD PLAN METRIC PUBLIC WORKS STANDARDS INC., GREENBOOK ITTEE 300 mm 12" THROUGH 1800 mm 72" 380-2 1ss2 REV. 1996 SHEET 1 OF 2 USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION BENCHMARK: FWE 1 USCGS " A " STATION "PACEL" 1963.90't E'LY OF RAIL- ROAD TRACKS AND 28'f S'LY OF CL BASELINE. 1.1 MI. E'LY OF EAST AVENUE. SAME AS CITY B.M. NO. 364. ELEV. 1301.54 NOTES, I. WHERE THE BASIN IS TO BE CONSTRUCTED WITHIN THE LIMITS OF EXISTING OR PROPOSED SIDEWALK OR IS CONTIGUOUS TO SUCH SIDEWALK, THE TOP SLAB OF THE BASIN MAY BE POURED EITHER MONOLITHIC WITH THE SIDEWALK OR SEPARATELY, USING THE SAME CLASS OF CONCRETE AS IN THE BASIN. WHEN POURED MONOLITHICALLY, THE SIDEWALK SHALL BE PROVIDED WITH A WEAKENED PLANE OR A 25 mm(I') DEEP SAWCUT CONTINUOUSLY AROUND THE EXTERNAL PERIMETER OF THE CATCH BASIN WALLS, INCLUDING ACROSS THE FULL WIDTH OF THE SIDEWALK. SURFACE OF ALL EXPOSED CONCRETE SHALL CONFORM IN SLOPE, GRADE, COLOR, FINISH, AND SCORING TO EXISTING OR PROPOSED CURB AND WALK ADJACENT TO THE BASIN. 2. ALL CURVED CONCRETE SURFACES SHALL BE FORMED BY CURVED FORMS, AND SHALL NOT BE SHAPED BY PLASTERING. 3. FLOOR OF BASIN SHALL BE GIVEN A STEEL TROWEL FINISH AND SHALL HAVE A LONGITUDINAL AND LATERAL SLOPE OF 1:12 MINIMUM AND 1:3 MAXIMUM, EXCEPT WHERE THE GUTTER GRADE EXCEEDS 8 PERCENT, IN WHICH CASE THE LONGITUDINAL SLOPE OF THE FLOOR SHALL )3E THE SAME AS THE GUTTER GRADE. SLOPE FLOOR FROM ALL DIRECTIONS TO THE OUTLET. 4. DIMENSIONS: B = 970 mm(3'-2') V = THE DIFFERENCE IN ELEVATION BETWEEN THE TOP OF THE CURB AND THE INVERT OF THE CATCH BASIN AT THE OUTLET = 1.35 m(4.5'). VU = THE DIFFERENCE IN ELEVATION BETWEEN THE TOP OF THE CURB AND THE INVERT AT THE UPSTREAM END OF THE BASIN, AND SHALL BE DETERMINED BY THE REQUIREMENTS OF NOTE 3, BUT SHALL NOT BE LESS THAN CURB FACE PLUS 300 mm(12'). VI = THE DIFFERENCE IN ELEVATION BETWEEN THE TOP OF THE CURB AND THE INVERT OF THE INLET, NOTED ON THE PROJECT PLANS. H = NOTED ON THE PROJECT PLANS. W = NOTED ON THE PROJECT PLANS. A = THE ANGLE. IN DEGREES, INTERCEPTED BY THE CENTERLINE OF THE CONNECTOR PIPE AND THE CATCH BASIN WALL TO WHICH THE CONNECTOR PIPE IS ATTACHED. 5. PLACE CONNECTOR PIPES AS INDICATED ON THE PROJECT PLANS. UNLESS OTHERWISE SPECI- FIED,- THE CONNECTOR PIPE SHALL BE LOCATED AT THE DOWNSTREAM END OF THE BASIN. WHERE THE CONNECTOR PIPE IS SHOWN AT A CORNER, THE CENTERLINE OF THE PIPE SHALL INTERSECT THE INSIDE CORNER OF THE BASIN. THE PIPE MAY BE CUT AND TRIMMED AT A SKEW NECESSARY TO INSURE MINIMUM 80 mrn(3') PIPE EMBEDMENT, ALL AROUND, WITHIN THE CATCH BASIN WALL, AND 75 mrn(3') RADIUS OF ROUNDING CF STRUCTURE CONCRETE, ALL AROUND. ADJACENT TO PIPE ENDS. A MONOLITHIC CATCH BASIN CONNECTION SHALL BE USED TO JOIN THE CONNECTOR PIPE TO THE CATCH BASIN WHENEVER ANGLE 'A' IS LESS THAN 70 DEGREES OR GREATER THAN 110 DEGREES, OR WHENEVER THE CONNECTOR PIPE IS LOCATED IN A CORNER. THE OPTIONAL USE OF A MONOLITHIC CATCH BASIN CONNECTION IN ANY CASE IS PERMITTED. MONOLITHIC CATCH BASIIN CONNECTIONS MAY BE CONSTRUCTED TO AVOID CUT- TING STANDARD LENGTHS OF PIPE. 6. STEPS SHALL BE LOCATED AS SHOWN. IIF THE CONNECTOR PIPE INTERFERES WITH THE STEPS, THEY SHALL BE LOCATED AT THE CENTERLINE OF THE DOWNSTREAM END WALL. STEPS SHALL BE SPACED 300 mm(12') APART. THE TOP STEP SHALL BE 175 mm(7") BELOW THE TOP TO THE MANHOLE AND PROJECT 65 mm(2-1/2'). ALL OTHER STEPS SHALL PROJECT 130 mm(5'). 7. DOWELS ARE REQUIRED AT EACH CORNER AND AT 2 m(71 ON CENTER (MAXIMUM) ALONG THE BACKWALL. 8. THE FOLLOWING STANDARD PLANS ARE INCORPORATED HEREIN: 308 MONOLITHIC CATCH BASIN CONNECTION 309 CATCH BASIN REINFORCEMENT 310 CATCH BASIN FACE PLATE ASSEMBLY AND PROTECTION BAR 312 CATCH BASIN MANHOLE FRAME AND COVER 635 STEEL STEP 636 POLYPROPYLENE PLASTIC STEP 9. 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 UNIITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE ENGLISH UNITS. AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER STANDARD PLAN CURB OPENING CATCH BASIN 3 SHEET 30,0 -2 2 OF 2 NOTES 1. A CONCRETE COLLAR IS REQUIRED WHERE THE CHANGE IN GRADE EXCEEDS 10 PERCENT. 2. FOR CURVE JOINTS (SEE DETAIL B. SHEET 1) IF THE EXTREME ENDS OF THE PIPE LEAVE A CLEAR SPACE THAT IS GREATER THAN 25 mm (I'), BUT IS LESS THAN 75 mm((3') A CONCRETE COVER IS REQUIRED IN ACCORDANCE WITH SUBSECTION 306-1.2.4 OF THE SSPWC. IF THE EXTREME ENDS OF THE PIPE LEAVE A CLEAR SPACE THAT IS EQUAL TO OR GREATER THAN 75 mm (3"), BUT LESS THAN 150 mm (6'), A CONCRETE COLLAR IS REQUIRED. IF THE CLEAR SPACE IS 150 mm (61 OR GREATER, A TRANSITION STRUCTURE IS REQUIRED. 3. CONCRETE COLLAR SHALL NOT BE USED FOR A SIZE CHANGE ON THE MAIN LINE. 4. CONNECTOR PIPES A. WHERE PIPES OF DIFFERENT DIAMETERS ARE JOINED WITH A CONCRETE COLLAR, L AND T SHALL BE THOSE OF THE LARGER PIPE. D=D1 OR D2, WHICHEVER IS GREATER. B. WHEN DI IS EQUAL TO OR LESS THAN Cp, JOIN INVERTS AND WHEN D► IS GREATER THAN D2, JOIN SOFFITS. 5. FOR PIPE LARGER THAN 1800 mm (72") SPECIAL COLLAR DETAILS ARE REQUIRED. 6. FOR PIPE SIZE NOT LISTED USE NEXT SIZE LARGER. 7. REINFORCEMENT SHALL CONFORM TO ASTM A 615 M (A 615) GRADE 300(40). 8. WHERE REINFORCING IS REQUIRED THE DIAMETER OF THE CIRCULAR, TIES SHALL BE D+(2X WALL THICKNESS) + T. 9. REINFORCING SHALL BE USED WHERE THE PIPE DIAMETER IS GREATER THAN 525 mm (21') AND ON ALL PIPES WHERE THE SPACES BETWEEN THE EXTREME OUTER ENDS IS 75 mm (3') OR' LARGER. CIRCULAR TIES PIPE DIAMETER N0. OF CIRCULAR TIES 525 mm (21") OR LESS 3 600 mm (24') TO 750 mm (30') 3 825 mm (33') TO 1425 mm (57") 4 1500 mm (60") TO 1800 mm (72') 5 WHERE THE SPACE BETWEEN PIPE ENDS EXCEEDS 75 mm (3'). THE NUMBER OF CIRCULAR TIES SHALL BE INCREASED TO MAINTAIN AN APPROXIMATE SPACING OF 150 mm (6") O.C. 10. WHERE THE PIPE IS 525 mm (21') OR LESS IN DIAMETER AN INTERIOR FORM OF UNSEALED SONO -TUBE OR EQUAL SHALL BE USED TO PROVIDE A SMOOTH INTERIOR JOINT. THE PAPER FORM MAY BE LEFT IN PLACE (SEE DETAIL A). WHEN THE PIPE IS 600 mm (24') OR LARGER A REMOVABLE INTERIOR FORM SHALL BE USED OR THE INTERIOR JOINT SHALL BE COMPLETELY FILLED WITH MORTAR AND NEATLY POINTED. 11. 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 BAR SIZES IN ENGLISH UNITS MAY BE SUBSTITUTED FOR METRIC BAR SIZES. IF ENGLISH UNITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE ENGLISH UNITS. AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER STANDARD PLAN CONCRETE COLLAR FOR RCP380-2 METRIC - 2 300 mm 12" THROUGH 1800 mm(72")___380 SHEET 2 OF 2 TOLL FREE "�"� 1-800-227-2600 A PUBLIC SERVICE BY UNDERGROUND SERVICE ALERT REV. REVISION DESCRIPTION DATE I ENGR. I CITY I DATE U POINT E� v POINT F J¢ DIRECTION OF FLOW PLAN �m z 0 ry L - - WD`s i - - L POINT A \-POINT B POINT C FLOW LINE PROFILE CASE B 25 m(n (1") 150 mm (6") 25 mm (I") 450 mm 50 rnm J- (21 CURB- .. p. FACE + H o - a. ',. E `w SECTION A -A SECTION B -B L- ---N--- B -NB CURB ` POINT D & ) GUTTER W U -B POINT G a ---DIRECTION OF FLOW x m x rr { 0 Z) L - -- --- N �I _ZL POINT D FLOW LINE N •C CURB POINT D & GUTTER) !!L U �C POINT G ¢ --DIRECTION OF FLOWcif m o � NZIU JELL POINT D \--FLOW LINE mm (6") 25 mm (I') --M,G,OR VAR.----- ~ -VAR. VALLEY ER o. E^`r o p. m� p• a Q p O o p SECTION C -C AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER WD----------- -• �Z Z PUBLIC WORKS STANDARDS INC., GREENBO COMMITTEE AT CATCH BASINS - METRIC 313-1 A [N PIiB & ASSOCIATES,INC. v v E w o W SHEET 1 OF 4 CURB CATCH OPENING BASIN (S� O� v' NO. C42723 GLENDORA, (626) 914-6256 FAX (626) 914-5756 DRAWN BY: pp T T11 ACrh 16222 SCALE: 11 EXP. 3--31-04 DESIGNED BY: A.P.W.A. ST DARD DETAIL X 'D 3 z 0 DATE: JL JAN, 2002 FOF Date : l `% QZ CHECKED BY: I'OV fDRAYNNG L3� NO.: 4 CURB POINT A CAI.\FOR 45o mm POINT B ST Exp. 3-31-04 CI Y ENGINEER R.C.E. 51152 DATE: POINT C �� STRg1GFIT i GRADE RADEPOINT POINTE� '-POINT F A PLAN a -DIRECTION OF FLOW � m 0 O -W Z U POINT B -POINT C -POINT A FLOW LINE PROFILE CASE A N --- L W D L W F. ^ W z N v E o CURB CATCH OPENING BASIN (S) _ wa� n3z0 I I I CURB POINT A--' �Pp�-POINT B/Ri G POINT C- Cy, POINT E� v POINT F J¢ DIRECTION OF FLOW PLAN �m z 0 ry L - - WD`s i - - L POINT A \-POINT B POINT C FLOW LINE PROFILE CASE B 25 m(n (1") 150 mm (6") 25 mm (I") 450 mm 50 rnm J- (21 CURB- .. p. FACE + H o - a. ',. E `w SECTION A -A SECTION B -B L- ---N--- B -NB CURB ` POINT D & ) GUTTER W U -B POINT G a ---DIRECTION OF FLOW x m x rr { 0 Z) L - -- --- N �I _ZL POINT D FLOW LINE N •C CURB POINT D & GUTTER) !!L U �C POINT G ¢ --DIRECTION OF FLOWcif m o � NZIU JELL POINT D \--FLOW LINE mm (6") 25 mm (I') --M,G,OR VAR.----- ~ -VAR. VALLEY ER o. E^`r o p. m� p• a Q p O o p SECTION C -C AMERICAN PUBLIC WORKS ASSOCIATION - SOUTHERN CALIFORNIA CHAPTER PROMULGATED BY TME LOCAL DEPRESSIONS STANDARD PLAN PUBLIC WORKS STANDARDS INC., GREENBO COMMITTEE AT CATCH BASINS - METRIC 313-1 1984 19 [N PIiB & ASSOCIATES,INC. REV. 1996 SHEET 1 OF 4 USE WITH STANDARD SPECIFICATIONS FOR PUBLIC WORKS CONSTRUCTION NOTE: 1. ALL EXPOSED EDGES SHALL BE ROUNDED TO A 15 mm (HALF INCH) RADIUS. 2. THE CURB FACE AT POINTS A AND D SHALL BE THE NORMAL CURB FACE OF THE ADJACE14T CURB. THE CURB FACE AT POINTS B AND C SHALL BE THE NORMAL CURB FACE OF THE ADJACENT CURB PLUS H (SEE APPLICABLE CATCH BASIN STANDARD PLAN). 3. IN EXISTING STREETS WHERE NO PAVEMENT REMODELING IS INDICATED, THE ELEVATION OF THE OUTER EDGE OF THE LOCAL DEPRESSION SHALL MEET THE FINISHED STREET SURFACE. 4. IN NEW STREETS, OR IN EXISTING STREETS WHERE PAVEMENT REMODELING IS INDICATED: THE ELEVATIONS OF POINTS F AND G SHALL BE SET H1 HIGHER THAN THE GUTTER FLOW LINE ELEVATIONS AT POINTS A AND D, RESPECTIVELY. THE ELEVATIONS OF POINTS P AND R SHALL BE SET H, HIGHER THAN THE GUTTER FLOW LINE ELEVATIONS Ar POINTS B AND C, RESPECTIVELY. THE ELEVATION OF POINT S SHALL BE SET HZ HIGHER THAN THE ELEVATION AT THE NEAREST GUTTER FLOW LINE. WHERE THERE IS NO GUTIER ADJACENT TO THE LOCAL DEPRESSION, THE ELEVATION OF POINT E SHALL BE SET H3 HIGHER THAN THE ELEVATION AT THE NEAREST TOE OF CURB. 5. DIMENSIONS: H = NOTED ON THE PROJECT PLANS. H) = NOTED ON THE PROJECT PLANS. HZ = NOTED ON THE PROJECT PLANS. H3 = NOTED ON THE PROJECT PLANS. G = 600 rnm (2 Feet) K = 1.5 n1 (5 Feet) L = 1.8 rn (6 Feet) M = 1.2 m (4 Feet) N = 1.5 rn (5 Feet) WD = CATCH BASIN W FOR ONE CATCH BASIN OR DISTANCE BETWEEN EXTREME END WALLS FOR MUTIPLE CATCH BASINS. THE THICKNESS OF THE LOCAL DEPRESSION SHALL BE 200 mm (8 INCHES). 6. DIMENSIONS SHOWN ON THIS PLAN FOR METRIC AND ENGLISH UNITS ARE NOT EXACTLY EQUAL VALUES. IF METRIC UNITS ARE USED, ALL VALUES USED FOR CONSTRUCTION SHALL BE METRIC VALUES, EXCEPT REINFORCING BAR SIZES IN ENGLISH UNITS MAYBE 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 STANDARD PLAN METRIC LOCAL DEPRESSIONS AT CATCH BASINS 313-1 SHEET 4 OF 4 SHOULD CONSTRUCTION OF THE REQUIRED IMPROVEMENTS NOT COMMENCE WITHIN TWO YEARS OF THE DATE OF APPROVAL SHOWN HEREON AND CARRIED FORTH IN A DILIGENT MANNER, THE CITY ENGINEER MAY REQUIRE REVISIONS TO THE PLANS TO BRING THEM INTO CONFORMANCE WITH CONDITIONS AND STANDARDS IN EFFECT. The Of CITY OF FONTANA, CALIFORNIA OfESS/0 Prepared Under Supervision : VILLAGE OF HERITAGE �`�� 3 - o,Fy [N PIiB & ASSOCIATES,INC. ' 1620 SOUTH GRAND AVENUE CALIFORNIA 91740 O� v' NO. C42723 GLENDORA, (626) 914-6256 FAX (626) 914-5756 DRAWN BY: pp T T11 ACrh 16222 SCALE: 11 EXP. 3--31-04 DESIGNED BY: A.P.W.A. ST DARD DETAIL DATE: JL JAN, 2002 FOF Date : l `% QZ CHECKED BY: I'OV fDRAYNNG L3� NO.: 4 Robe J. Okerman, R.C.E. 4 72 CAI.\FOR ,iZr- co - -.,, a� - 3123 4 Exp. 3-31-04 CI Y ENGINEER R.C.E. 51152 DATE: