STANDARD CONSTRUCTION DETAILS REVISED MARCH 2018
GENERAL NOTES EMBEDMENT DETAILS EMBEDMENT DETAILS TWO-WAY CLEANOUT - EXISTING LATERAL TWO-WAY CLEANOUT - NEW CONSTRUCTION TYPICAL SEWER HOUSE SERVICE CONNECTION STANDARD CLEANOUT CAST-IN-PLACE MANHOLE TYPE "S" MANHOLE, CAST IN PLACE KEYWAY WITH WATER STOP PRECAST CONCRETE PIPE MANHOLE, ALTERNATE "A" PRECAST CONCRETE PIPE MANHOLE, ALTERNATE "B" PRECAST CONCRETE FLAT TOP MANHOLE CAST IRON GRATE AND FRAME MANHOLE DROP CONNECTION INTERIOR DROP MANHOLE DETAIL PRESSURE TYPE MANHOLE FRAME AND COVER ARIAL CROSSING PIER CAP & CONCRETE COLLAR SD-SS01 SD-SS02 SD-SS03 SD-SS04 SD-SS05 SD-SS06 SD-SS07 SD-SS08 SD-SS09 SD-SS10 SD-SS11 SD-SS12 SD-SS13 SD-SS14 SD-SS15 SD-SS16 SD-SS17 SD-SS18 SD-SS19
GENERAL NOTES 1. ALL PIPE SHALL BE P.V.C. SDR-35 PIPE. OTHER PIPES SHALL BE SUBJECT TO APPROVAL BY THE CITY ENGINEER. 2. LATERALS SHALL INCLUDE 4" TEE WYE BEND, PIPE INSTALLED 10 FEET DOWNSTREAM FROM THE WATER MAIN SERVICE ON EACH LOT, UNLESS OTHERWISE INDICATED ON THE PLANS. 6" LATERALS REQUIRE MANHOLE AT MAIN SEWER PIPE. 3. PIPE JOINTS SHALL CONFORM TO ASTM DESIGNATIONS FOR P.V.C. PIPE. 4. UNLESS OTHERWISE NOTED, ALL MATERIAL AND CONSTRUCTION SHALL CONFORM TO THE STANDARD SPECIFICATION AND/OR SPECIAL PROVISIONS. 5. IN THE EVENT AN ITEM IS NOT COVERED IN THE CITY OF ALLEN SPECIFICATIONS, THE CITY ENGINEERS'S DECISION SHALL APPLY. 6. DROP MANHOLE REQUIRED FOR GRADE DIFFERENCES OF 18" OR GREATER. 7. TV CAMERA, MANDREL, AIR TEST AND VACUUM TEST LINE/MANHOLE AFTER ALL UTILITIES HAVE BEEN INSTALLED. 8. LINE WILL BE RE-AIR TESTED AFTER PAVING AND ALL UTILITIES HAVE BEEN INSTALLED. 9. TWENTY ONE (21) MONTHS INTO MAINTENANCE PERIOD, ALL LINES WILL BE CAMERA INSPECTED FOR SAGS, SETTLEMENTS, SEPARATION, ETC,. 10. SHALLOWER PARALLEL LINE REQUIRED WHEN FLOW LINE OF EXCEEDS 12 FT. DEPTH. VERTICAL DROP CONNECTIONS NOT PERMITTED. GENERAL NOTES AUG. 2006 SD-SS01
1/4 O.D 4" MIN. 1/4 O.D 3" MIN. (6" MIN. IN ROCK) EMBEDMENT DETAILS 3" MIN. MAY 2017 SD-SS02 CLASS B-1 EMBEDMENT P.V.C. PRESSURE SEWER PIPE ONLY CRUSHED STONE SHALL BE 3/4", PASSING #4 SIEVE CLASS A-1 EMBEDMENT CONCRETE CAP
CLASS "B" CONCRETE BRICK OR CONCRETE BLOCK SUPPORT CRUSHED STONE EMBEDMENT DETAILS MAY 2017 SD-SS03
OVERFLOW SCREW ON FITTING 4" PVC PIPE ENLARGE DETAIL SEE ENLARGE DETAIL SIDEWALK 1' ROW/PROPERTY LINE EXTEND ABOVE GROUND AND PLUG with EZ-FLO 43511 4" SEWER RELIEF VALVE OR APPROVE EQUAL. SEE ENLARGE DETAIL FINISH GRADE CONCRETE BLOCK MIN. WIDTH = O.D. +12" EXISTING SERVICE MAIN BEND AS REQUIRED CONCRETE NOTE: TWO-WAY CLEANOUT AT PROPERTY LINE 1. NO RISER OR CAPS WILL BE ACCEPTED IN THE SIDEWALK. (NEW CONSTRUCTION ONLY) 2. ALL CLEAN-OUT CAPS MUST BE FLUSH WITH FINISHED GRADE AND USE EZ-FLO 43511 OR APPROVED EQUAL CAPS. FINISHED PRODUCT SHALL BE MOWABLE. TWO-WAY CLEANOUT FOR EXISTING LATERAL FEB. 2016 SD-SS04
SERVICE NEW CONSTRUCTION MARCH. 2018 SD-SS05 ROW/PROPERTY LINE OVERFLOW SCREW ON FITTING EXTEND ABOVE GROUND AND PLUG with EZ-FLO 43511 4" SEWER RELIEF VALVE OR APPROVE EQUAL. 4" PVC PIPE ENLARGE DETAIL RESIDENCE SIDEWALK DEVELOPER 1' MIN ABOVE FINISH GRADE FINISH GRADE REMOVE EXISTING SEWER LATERAL TO GRADE OF PLUMBED SERVICE. HOME BUILDER TO POUR CONCRETE 24" LONG 6" AROUND PIPE. 4" P.V.C. PIPE MAIN SLOPE AS REQ'D. BY PLUMBING CODE NOTES : DEVELOPER INSTALLED PLUG TAKEN OFF. HOME BUILDER TO INSTALL "CT" ADAPTER TO CONNECT EXISTING 4" SERVICE LINE. HOME BUILDER CONCRETE BLOCK MIN. WIDTH = O.D.+12" 1. SEWER LATERAL SHALL BE LOCATED 10-FT. DOWNSTREAM OF LOT CENTERLINE AND INSTALLED AT MINIMUM 2% SLOPE. (UNLESS OTHERWISE APPROVED BY COA ENGINEERING DEPT). 2. DEVELOPER SHALL INSTALL SEWER LATERAL TO PROJECT 1' MINIMUM ABOVE GRADE, AFTER PASSING VIDEO INSPECTION, DEVELOPER SHALL CAP, & PLUG SERVICE 1' MINIMUM ABOVE FINISHED GRADE. (NEW CONSTRUCTION ONLY) 3. BUILDER SHALL UNCOVER AND REMOVE SEWER LATERAL PIPE AS REQUIRED TO CONNECT HOME PLUMBING. LATERAL SHALL BE 3' BELOW FINISHED GRADE & TV INSPECTED BY BUILDER ONCE MORE PRIOR TO PLUMBING ROUGH IN. (NEW CONSTRUCTION ONLY) 4. ALL TV INSPECTIONS (BY DEVELOPER/BUILDER OR CONTRACTOR) SHALL REQUIRE THE INTRODUCTION OF WATER INTO LINE, AS REQUIRED TO CONFIRM NO SAGS/BELLIES ARE PRESENT. 3' 1' MIN
4" P.V.C. SANITARY SEWER LATERAL AT 2% MIN. SLOPE 4" P.V.C. SANITARY SEWER LATERAL AT 2% MIN. SLOPE 4" 6" 2000 P.S.I CONCRETE BLOCKING TEE WYE 4" 4" SECTION B-B A P L A N COLLECTION SEWER CRUSHED STONE B 4" 6" 2000 P.S.I CONCRETE BLOCKING 4" P.V.C. SANITARY SEWER LATERAL AT 2% MIN. SLOPE SECTION A-A TEE WYE TYPICAL SEWER HOUSE SERVICE CONNECTION TYPICAL SEWER HOUSE SERVICE CONNECTION JAN. 2010 SD-SS06
A BASS & HAYS CASING 339 6" SPIGOT PLUG J.M. MNFG. CAT # 0079012 OR APPROVED EQUAL UNDISTURBED GROUND 2" SLAB. 2'-10" LONG 2000 LB. CONCRETE OR CLASS "A" 3000 P.S.I. IF LOCATED IN ROADWAY. BASS & HAYS CASING 339 2" SLAB. 2'-10" LONG 2000 LB. CONCRETE OR CLASS "A" 3000 P.S.I. IF LOCATED IN ROADWAY. STANDARD CLEANOUT CRUSHED STONE EMBEDMENT REQUIRED 6" CLEAN OUT STACK (P.V.C. PIPE) UNDISTURBED GROUND 2000 LB. CONCRETE 6" CLEAN OUT STACK WYE SOIL 4" 4" PLUG 2000 LB. CONCRETE CRUSHED STONE EMBEDMENT REQUIRED NOT LESS THAN 3" MAY 2006 SD-SS07 SECTION A-A STANDARD CLEANOUT A SIDE ELEVATION
FRAME AND COVER SEE COA DETAIL SD-SS14 PRECAST CONCRETE ADJUSTMENT RINGS (SET IN MORTAR BED AND BRING TO GRADE) MAXIMUM RING ADJUSTMENT=18" CLASS "F" CONCRETE MONOLITHIC 4000 P.S.I. CONCRETE FOR CAST-IN-PLACE MANHOLES STUBOUTS TO BE A MINIMUM OF 5' LONG WITH CONCRETE CRADLE UNDER ENTIRE LENGTH. COUPLING W/O-RING RUBBER GASKETS, KOR-N-SEAL, A-LOK OR APPROVED EQUAL. STANDARD CAST-IN-PLACE MANHOLE NOTE: IF FALSE MANHOLE BOTTOMS ARE REQUIRED, THEY SHALL BE CONSTRUCTED, INSTALLED AND REMOVED. CAST-IN-PLACE NOTES: 1. KEYWAYS REQUIRED FOR ALL CONSTRUCTION JOINTS. 2. P.V.C. WATER STOP REQUIRED FOR ALL JOINTS IN LOWER 4'-0" OF MANHOLES 3. CONCRETE SHALL BE 4000 P.S.I. 4. ALL MANHOLES SHALL PASS VACUUM TEST AS PER NCTCOG SPECIFICATIONS CAST-IN-PLACE MANHOLE DEC 1992 MAY 2010 SD-SS08
TYPE "S" MANHOLE CAST IN PLACE DEC 1992 AUG. 2006 SD-SS09 MANHOLE FRAME CAST IN ROOF W/CONTINUOUS POUR FROM BASE. ROOF OPTIONS A A FIRM, WELL DRAINED MATERIAL OR ROCK FOUNDATION PER NCTCOG SPECIFICATION, SECTION 504.3.2 NOTES 1. IF FALSE MANHOLE BOTTOMS REQUIRED, THEY SHALL BE CONSTRUCTED, INSTALLED AND REMOVED. TYPE "S" MANHOLE (CAST IN PLACE) 2. ALL MANHOLES SHALL PASS VACUUM TEST AS PER NCTCOG SPECIFICATIONS 30" (6') CONSTRUCTION JOINT WITH KEYWAY WATERSTOP AND #3'S 12" O.C. EXTENDING 9" INTO WALL (NOT REQUIRED FOR CONTINUOUS POUR). SECTION A #3'S AT 6" O.C.E.W. MANHOLE LID SHOULD BE IN LINE WITH UPSTREAM PIPE WHERE POSSIBLE 36" PRESSURE TYPE MANHOLE FRAME AND COVER SEE COA DETAIL SD-SS17 #3'S AT 6" O.C.E.W. PRESSURE TYPE MANHOLE FRAME AND COVER SEE COA DETAIL SD-SS17 CONCRETE CONE PRESSURE TYPE MANHOLE FRAME AND COVER SEE COA DETAIL SD-SS17 ASBESTOS CEMENT COUPLING WITH O-RING RUBBER GASKET FOR PIPE OTHER THAN CLAY OR CONCRETE, ALTERNATE COUPLINGS MUST BE APPROVED BY CITY ENGINEER. STUBOUT TO BE FITTED WITH STOPPER OR CAP. STUBOUTS TO BE A MIN. OF 5' LONG W/ CONCRETE CRADLE (FROM SAME POUR AS BASE) UNDER ENTIRE LENGTH. PER NCTCOG SPECIFICATION, TRANSITION DETAIL FOR 5' AND 6'
STANDARD 2 X 4 KEYWAY ROUGHEN EDGES PRIOR TO MAKING SECOND POUR. PROVIDE 4" HEAVY DUTY P.V.C. WATERSTOP AT ALL CONSTRUCTION JOINTS. KEYWAY WITH WATERSTOP KEYWAY WITH WATERSTOP AUG. 2006 SD-SS10
8" X 30" DIA. PRECAST REINFORCED CONCRETE GRADE RINGS (SET IN MORTAR BED AND BRING TO GRADE) RINGS 18" MAX. CAST IRON MANHOLE FRAME AND COVER SUITABLE FOR HEAVY TRAFFIC (SEE COA DETAIL SD-SS14 MORTAR CONCENTRIC MANHOLE CONE. SEE NOTE FOR LARGER THAN 48" DIA. JOINT WITH NEOPRENE "O" RING GASKET AND MASTIC 30" 3' FOR 48" DIA. MANHOLE NOTE A: MANHOLE DIAMETER LARGER THAN 48" I.D. PRE-CAST FLAT TOP MANHOLE COVER AS PER ASTM C478 SHALL BE INSTALLED. FOR HEAVY TRAFFIC SPECIAL DESIGN REQUIRED. SEE DETAIL. REFER TO NCTCOG SPECIFICATIONS (LATEST EDITION) FOR : REINFORCED CONCRETE PIPE C-76. CLASS III WITH RUBBER GASKET JOINT. 1. CONCRETE CLASS. 2. CONCRETE PIPE MATERIAL. 3. MANHOLE MATERIAL. 4. RUBBER GASKET JOINT. VARIABLE 1" GROUT SPACEFILL WITH CEMENT MORTAR OR MASTIC MATERIAL. 6" MIN BOTTOM SECTION OF MANHOLE IN LENGTHS OF ONE (1), TWO (2) OR THREE (3) FEET, TO BE SET ON 1" OF LEVEL GROUT. COUPLING WITH O-RING RUBBER GASKET WITH P.V.C. PIPE. STUBOUTS TO PL OR ESMT. (MIN. 5' LONG) WITH CONCRETE CRADLE UNDER ENTIRE LENGTH. 12" MIN. 6" MIN. PIPE I.D VARIABLE GROUT CLASS "F" CONCRETE BASE FOR PRECAST MANHOLE. PRECAST CONCRETE PIPE MANHOLE ALTERNATE "A" NOTE: FALSE BOTTOMS ARE REQUIRED IN MANHOLES, AND SHALL BE CONSTRUCTED ONCE MANHOLE IS IN SERVICE. FALSE BOTTOM SHALL BE REMOVED ONCE CONSTRUCTION ACTIVITY IS COMPLETE. ALL MANHOLES SHALL PASS VACUUM TEST AS PER NCTCOG SPECIFICATIONS PRECAST CONCRETE PIPE MANHOLE ALTERNATE "A" DEC 1992 MAY. 2017 SD-SS11
MANHOLE RING AND COVER TO BE SET TO GRADE OF PROPOSED PAVEMENT, OR FLUSH WITH PROPOSED GROUND GRADE. STANDARD CAST IRON MANHOLE FRAME AND COVER SEE COA DETAIL SD-SS14 MORTAR COATING USE PRECAST CONCRETE GRADE RINGS TO RAISE TO GRADE 1" MIN. 18" MAX, AS PER NCTCOG SPECIFICATION SECTION 502.1.2.1 NOTE A: MANHOLE DIAMETER LARGER THAN 48" I.D. PRE-CAST FLAT TOP MANHOLE COVER AS PER ASTM C478 SHALL BE INSTALLED. FOR HEAVY TRAFFIC SPECIAL DESIGN REQUIRED. SEE DETAIL. NEOPRENE "O-RING" GASKET AND MASTIC. REFER TO NCTCOG SPECIFICATION (LATEST EDITION) FOR : 1. CONCRETE CLASS. 2. CONCRETE PIPE MATERIAL. 3. MANHOLE MATERIAL. 4. RUBBER GASKET JOINT. 30" VARIES INTERMEDIATE RISER AVAILABLE IN : 1',2' & 3' 3' TO 5' 3' FOR 4' MANHOLE AND 4' LENGTHS (USE MINIMUM NO. OF RISERS) KOR-N-SEAL, OR APPROVED EQAUL. VOIDS TO BE GROUTED 6" TO 18" PRESS-SEAL OR APPROVED EQUAL. CONN. OVER 18". TOP OF PIPE 8" BASE RISER (VARIES) EMBEDMENT AS SPECIFIED BY STANDARD DETAILS. KOR-N-SEAL, OR APPROVED EQUAL. VOIDS TO BE GROUTED 1' MIN. 5' STONE CUSHION FOUNDATION AS PER NCTCOG SPECIFICATIONS SECTION 504.3.2 NOTE: FALSE BOTTOMS ARE REQUIRED IN MANHOLES, AND SHALL BE CONSTRUCTED ONCE MANHOLE IS IN SERVICE. FALSE BOTTOM SHALL BE REMOVED ONCE CONSTRUCTION ACTIVITY IS COMPLETE. ALL MANHOLES SHALL PASS VACUUM TEST AS PER NCTCOG SPECIFICATIONS GEOTEXTILE MATERIAL, AS PER NCTCOG SPECIFICATION SECTION 803.4 PRECAST CONCRETE MANHOLE ALTERNATE "B" PRECAST CONCRETE PIPE MANHOLE ALTERNATE "B" DEC 1992 MAY 2017 SD-SS12
CAST IRON FRAME AND COVER FOR MANHOLE SHALL BE SUITABLE FOR HEAVY TRAFFIC. SEE COA DETAIL SD-SS14 30" DIA. BOTTOM SECTION OF RISER PIPE BUTT AND BELL REINFORCED CONCRETE PIPE C-76, CLASS III WITH RUBBER GASKET JOINT. GROUT SPACE TO BE FILLED WITH CEMENT MORTAR OR MASTIC MATERIAL. 60" AND 72" DIA. CLASS "F" CONCRETE BASE FOR PRECAST MANHOLE. NOTE: FALSE BOTTOMS ARE REQUIRED IN MANHOLES, AND SHALL BE CONSTRUCTED ONCE MANHOLE IS IN SERVICE. FALSE BOTTOM SHALL BE REMOVED ONCE CONSTRUCTION ACTIVITY IS COMPLETE. PRECAST CONCRETE FLAT TOP MANHOLE ALL MANHOLES SHALL PASS VACUUM TEST AS PER NCTCOG SPECIFICATIONS PRECAST CONCRETE FLAT TOP MANHOLE DEC 1992 MAY 2017 SD-SS13
(4) Ø7/8" BOLT HOLES ON A 35 1/2" DIA B.C. CUSTOM LOGO A A (2) CAST PICKBARS CITY OF ALLEN SLIP RESISTANT SURFACE 1" FLAT FACE LETTERING 1/2" FLAT FACE LETTERING 32" DIA 1 1 2" 33 11/16" DIA 32 1/4" DIA 1 1 2" 4" 30" DIA 32 1/4" DIA 38" DIA SECTION A-A 1 1 2" NOTE! FRAME IS REVERSIBLE CAN BE INSTALLED AS A TOP FLANGE UNIT. PRODUCT NUMBER DESIGN FEATURES SPECIAL FEATURES DESIGNATES MACHINE SURFACE CAST IRON GRATE AND FRAME SEPT 2016 SD-SS14
FINISH GRADE CONCRETE GRADE RINGS FOR ADJUSTMENT 18" MAXIMUM. STANDARD MANHOLE COVER SEE COA DETAIL SD-SS14 30" MINIMUM 3" THICK CONCRETE 3000 P.S.I. ENCASE IN CONCRETE MIN. 6" AROUND DROP PIPE. FLUSH WITH INSIDE FACE OF MANHOLE. SAME AS MAIN- 12" MAX. TOP OF PIPE ON MAIN LINE FOR PIPE SMALLER THAN 24" DIA. 12" MAX. MANHOLE DROP CONNECTION NOTES : 1. BACKFILL AND INVERT TO CITY SPECIFICATIONS. 2. ALL CAST IRON FITTINGS SHALL BE DOMESTIC. MANHOLE DROP CONNECTION MAY 2010 SD-SS15
FINISH GRADE CONCRETE GRADE RINGS FOR ADJUSTMENT 18" MAX STANDARD MANHOLE COVER SEE COA DETAIL SD-SS14 3' MIN. 15" (5') 1' MIN. 2' OR 3' CUT HOLE IN TOP OF TEE BELL & SPIGOT TEE 30" PIPE VOID UNDER PIPE TO BE COMPACTED STAINLESS STEEL EXPANSION BOLTS ON 12" CENTERS 1' MIN. 30" (6') 5' (MIN.) 8' (MIN.) INTERIOR DROP MANHOLE DETAIL INTERIOR DROP MANHOLE DETAIL JAN 1993 MAY 2010 SD-SS16
(4) 1" DIA BOLT HOLES ON A 351 2 " DIA B.C. CUSTOM LOGO A A (2) CAST PICKBARS CITY OF ALLEN (4) SS 1 2-13 BOLTS WITH 1 2" STEEL AND RUBBER WASHERS SLIP RESISTANT SURFACE 3/4" FLAT FACE LETTERING 1/2" FLAT FACE LETTERING 32" DIA 1 1 2" 1 4 " NEOPRENE GASKET 33 11/16" DIA 32 1/4" DIA 1 1 2" 4" 30" DIA 32 1/4" DIA 38" DIA SECTION A-A 1 1 2" NOTE! FRAME IS REVERSIBLE CAN BE INSTALLED A TOP FLANGE UNIT. PRODUCT NUMBER DESIGN FEATURES SPECIAL FEATURES DESIGNATES MACHINE SURFACE PRESSURE TYPE MANHOLE FRAME AND COVER MAY 2010 SD-SS17
ENGINEERING DESIGN SHALL BE SUBMITTED FOR EACH CROSSING. PIERS SHALL BE PLACED AT MAXIMUM SPAN DISTANCE AS DICTATED BY DESIGN. CONSTRUCT CONCRETE COLLAR JOINT LENGTH VARIES AERIAL CROSSING JOINT LENGTH VARIES JOINT LENGTH VARIES CONSTRUCT CONCRETE COLLAR MANHOLE MANHOLE CONCRETE COLLAR 3' MIN. AERIAL CROSSING PIPE MH TO MH STEEL PIPE SHALL BE OF THE TYPE SHOWN IN THE SPECIFICATIONS. STEEL PIPE SHALL HAVE THICKNESS REQUIRED FOR SIZE AND SPAN WITH MINIMUM WALL THICKNESS OF 3/8 INCHES. PIPE COUPLING SHALL BE PLACED A MAXIMUM OF 5 FEET FROM CENTERLINE OF PIERS. CONCRETE ENCASEMENT NOTE : STEEL PIPE SHALL BE JOINT WITH STEEL COUPLING 18" DIAMETER PIERS MINIMUM (SEE DETAIL) CONCRETE ENCASEMENT PIER PLACEMENT AND SPACING SHALL BE SUBMITTED TO CITY FOR APPROVAL. PIER SHALL EXTEND 6 FEET MINMUM INTO SHALE OR ROCK. MATERIALS SHALL CONFORM TO THE SPECIAL PROVISIONS AND/OR THE STANDARD SPECIFICATIONS. MANHOLE TO MANHOLE AERIAL CROSSING DETAIL AERIAL CROSSING AUG 2006 SD-SS18
PIER CAP & CONCRETE COLLAR AUG 2006 SD-SS19 2-2 1 2" X 1 4" L STRAPS HOT DIPPED GALVANIZED AFTER FABRICATION. 30" MIN. 1 1 2 O.D. + 6" 2 O.D. + 6" 1" NON-SHRINK GROUT. 3 4 " CHAMPER 3" 18" DIA. MIN. AERIAL CROSSING PIER CAP DETAIL 8" 4" NOTE: CONSTRUCT MINIMUM WIDTH OF COLLAR ALONG PIPE= 2'-0" (1'-0" EACH SIDE OF JOINT). 3 4 "Ø X 1' BOLT WITH HEX NUT AND WASHER. HOT DIPPED GALVANIZED. * O.D. OF LARGEST PIPE AT EACH COLLAR. AERIAL CROSSING CONCRETE COLLAR DETAIL MATERIALS SHALL CONFORM TO THE SPECIAL PROVISIONS AND/OR THE STANDARD SPECIFICATIONS. R=1/2 O.D. + 3" 8" see Detail PIPE O.D.* 8" O.D. + 16" 3 4 " CHAMPER 10" 1/2 O.D.* + 8" O.D. + 16" 1/2 O.D.* + 8" 120 DETAIL