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Standard Manhole

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Standard Manhole The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. SLOPE SHELVES 1:12 TO DRAIN, TYP MANHOLE STEPS PIPE INVERTS AND SEE NOTE 3 MANHOLE ELEVATIONS PER PLANS CONFINED MASTIC MANHOLE FRAME O-RING AND COVER, SEE R= RADIUS OF STD DWG 516 MANHOLE, TYP SET FRAME IN NON-SHRINK CONFINED KEYLOCK GROUT O-RING JOINT JOINT PRECAST GRADE RINGS. 12" MAX 12" MAX SLOPE OF PRECAST 24" MAX ECCENTRIC CONE SHALL FACE DOWNSTREAM 12" TABLE (MINIMUM) PIPE MANHOLE WALL SIZE DIAMETER THICKNESS < 21" 48" 5" FINISH INTERIOR JOINTS 24"-27" 60" 6" WITH APPROVED NON-SHRINK GROUT, 30"-36" 72" 7" SEE NOTE 2 42"-48" 84" 8" LOCATE STEPS ALL OPENINGS SHALL BE ON UPSTREAM CORE DRILLED. PROVIDE SIDE OF MANHOLE, 12" MAX FLEXIBLE MANHOLE TO PIPE SEE STD DWG 522 CONNECTION, KOR-N-SEAL, OR APPROVED EQUAL, SEE NOTE 4 PRECAST MANHOLE BASE, 6" MIN THICKNESS STABLE SUBGRADE 6" MIN COMPACTED 3/4"-0" NOTES: GRANULAR BASE ROCK 1. CONCENTRIC CONES ARE NOT ALLOWED UNLESS SPECIFICALLY APPROVED BY THE CITY ENGINEER. ALL PRECAST SECTIONS SHALL MEET OR EXCEED ASTM C-478. 2. WATERTIGHT CONFINED O-RING OR MASTIC JOINTS REQUIRED. NON-SHRINK GROUT INSIDE JOINTS AND WALL PENETRATIONS SMOOTH FOLLOWING MANHOLE ASSEMBLY. 3. STEPS TO BE FACTORY INSTALLED POLYPROPYLENE PLASTIC WITH 1/2" GRADE 60 REINFORCEMENT. SEE STANDARD DRAWING 524. 4. ALL RIGID CONNECTING PIPES SHALL HAVE FLEXIBLE, GASKETED, UNRESTRAINED JOINT WITHIN 18". 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 SANITARY NAME DATE 362 N. THIRD AVENUE DRAWING NO. STAYTON, OR 97383 STANDARD MANHOLE PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 502 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. PIPE INVERTS AND MANHOLE ELEVATIONS PER PLANS SLOPE SHELVES 1:12 TO DRAIN, TYP MANHOLE STEPS, SEE NOTE 3 MANHOLE FRAME AND COVER, SEE STD DWG 516 R= RADIUS OF SET FRAME IN MANHOLE, TYP NON-SHRINK GROUT 12" MAX CONFINED O-RING PRECAST 24" MAX GRADE RINGS, 12" MAX MASTIC 12" SLOPE OF PRECAST ECCENTRIC CONE SHALL FACE DOWNSTREAM LOCATE STEPS CONFINED KEYLOCK ON UPSTREAM 48" MIN O-RING JOINT JOINT SIDE OF MANHOLE, SEE STD DWG 522 TABLE (MINIMUM) PIPE MANHOLE WALL FINISH INTERIOR JOINTS SIZE DIAMETER THICKNESS WITH APPROVED < 21" 48" 5" NON-SHRINK GROUT, 24"-27" 60" 6" SEE NOTE 2 30"-36" 72" 7" 42"-48" 84" 8" FLAT TOP SECTION, 8" MIN THICKNESS 6' MIN 12" ALL OPENINGS SHALL BE MAX CORE DRILLED. PROVIDE FLEXIBLE MANHOLE TO PIPE CONNECTION, KOR-N-SEAL, OR APPROVED EQUAL, SEE NOTE 4 STABLE PRECAST MANHOLE BASE, SUBGRADE 6" MIN THICKNESS NOTES: 6" MIN COMPACTED 3/4"-0" GRANULAR BASE ROCK 1. PRECAST SECTIONS SHALL MEET OR EXCEED ASTM C-478. 2. WATERTIGHT CONFINED O-RING OR MASTIC JOINTS REQUIRED. NON-SHRINK GROUT INSIDE JOINTS AND WALL PENETRATIONS SMOOTH FOLLOWING MANHOLE ASSEMBLY. 3. STEPS TO BE FACTORY INSTALLED POLYPROPYLENE PLASTIC WITH 1/2" GRADE 60 REINFORCMENT ROD. SEE STANDARD DRAWING 524. 4. ALL RIGID CONNECTING PIPES SHALL HAVE FLEXIBLE, GASKETED, UNRESTRAINED JOINT WITHIN 18". 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 STANDARD MANHOLE SANITARY NAME DATE 362 N. THIRD AVENUE DRAWING NO. STAYTON, OR 97383 FOR LARGE PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 DIAMETER PIPES 504 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. SLOPE SHELVES 1:12 TO DRAIN, TYP MANHOLE STEPS PIPE INVERTS AND SEE NOTE 4 MANHOLE ELEVATIONS PER PLANS CONFINED MASTIC O-RING R= RADIUS OF MANHOLE, TYP CONFINED KEYLOCK MANHOLE FRAME O-RING JOINT JOINT AND COVER, SEE STD DWG 516 TABLE (MINIMUM) PIPE MANHOLE WALL SET FRAME IN PRECAST SIZE DIAMETER THICKNESS NON-SHRINK GRADE < 21" 48" 5" GROUT RINGS, 24"-27" 60" 6" 12" MAX FLAT TOP SECTION, 12" MAX 8" MIN THICKNESS 24" MAX 12" 5" MIN FINISH INTERIOR JOINTS LOCATE STEPS WITH NON-SHRINK ON UPSTREAM GROUT, SEE NOTE 3 5' MAX SIDE OF MANHOLE, ALL OPENINGS SHALL BE SEE STD DWG 522 12" CORE DRILLED. PROVIDE MAX FLEXIBLE MANHOLE CONNECTION, KOR-N-SEAL, OR APPROVED EQUAL, SEE NOTE 5 STABLE PRECAST MANHOLE BASE, SUBGRADE 6" MIN THICKNESS 6" MIN COMPACTED 3/4"-0" NOTES: GRANULAR BASE ROCK 1. CONCENTRIC TOP SLABS ARE NOT PERMITTED UNLESS SPECIFICALLY APPROVED BY THE CITY ENGINEER. 2. PRECAST SECTIONS SHALL MEET OR EXCEED ASTM C-478. 3. WATERTIGHT O-RING OR MASTIC JOINTS REQUIRED. NON-SHRINK GROUT INSIDE JOINTS AND WALL PENETRATIONS SMOOTH FOLLOWING MANHOLE ASSEMBLY. 4. STEPS TO BE FACTORY INSTALLED POLYPROPYLENE PLASTIC WITH 1/2" GRADE 60 REINFORCMENT. SEE STANDARD DRAWING 524. 5. ALL RIGID CONNECTING PIPES SHALL HAVE FLEXIBLE, GASKETED, UNRESTRAINED JOINT WITHIN 18". 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 SANITARY NAME DATE STANDARD SHALLOW 362 N. THIRD AVENUE STAYTON, OR 97383 DRAWING NO. PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 FLAT TOP MANHOLE 506 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. VARIES 2" HIGH 2" HIGH MORTAR VARIES MORTAR KOR-N-SEAL OR DAM DAM APPROVED EQUAL KOR-N-SEAL OR AND GROUT, TYP APPROVED EQUAL AND GROUT, TYP WYE PIPE DIA TO MATCH MAIN PIPE DIA TO LINE PIPE MATCH MAIN DIAMETER, LINE PIPE 12" MAX DIAMETER, 12" MAX 45 BEND 90 BEND ON SANDBAG OR 90 BEND ON CONC SACK SANDBAG OR MIX SUPPORT CONC SACK MIX SUPPORT UNDISTURBED STABLE 6" MIN COMPACTED 3/4"-0" STABLE EARTH SUBGRADE GRANULAR BASE ROCK SUBGRADE 6" MIN COMPACTED 3/4"-0" TEE WYE GRANULAR BASE ROCK NOTES: 1. SEE STANDARD DRAWING 502, 504, AND 506 FOR ADDITIONAL REQUIREMENTS RELATIVE TO THE CONSTRUCTION OF PRECAST STANDARD AND FLAT-TOP MANHOLES. 2. DROP MANHOLES SHALL BE CONSTRUCTED WHERE THE DISTANCE BETWEEN PIPE INVERTS WILL EXCEED 24" IN SANITARY SEWER MANHOLES. PIPE INVERTS AND MANHOLE ELEVATIONS PER PLANS. 3. DROP ASSEMBLIES SHALL BE CONSTRUCTED OF PVC OR OTHER MATERIALS APPROVED FOR USE IN SANITARY SEWER SYSTEMS. 4. DROP ASSEMBLIES SHALL BE CONSTRUCTED ON THE OUTSIDE OF THE MANHOLE AS SHOWN. INSIDE DROP ASSEMBLIES ARE NOT PERMITTED WITHOUT THE APPROVAL OF THE CITY ENGINEER. 5. MAXIMUM SEWER MAIN SIZE SHALL BE 12-INCHES. 6. WYE DROP MAY BE REQUIRED OVER TEE DROP IN LOCATIONS OF HIGH FLOW OR STEEP GRADES. 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 STANDARD SANITARY NAME DATE 362 N. THIRD AVENUE DRAWING NO. STAYTON, OR 97383 OUTSIDE DROP PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 MANHOLE 508 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. 48" MIN FLEXIBLE MANHOLE TO PIPE CONNECTOR, KOR-N-SEAL, OR APPROVED EQUAL TEE REMOVABLE MECHANICAL PLUG DROP PIPE SHALL BE ASTM D3034 PVC INSTALLED FLUSH WITH INSIDE OF MANHOLE BARREL, FASTENED TO WALL WITH 1-1/2" x 10 GA. STAINLESS STEEL STRAPS AND 2 1/2" STAINLESS STEEL EXISTING BOLTS. STRAPS SHALL BE SPACED MANHOLE EVERY 4 FEET WITH A 2 STRAP MINIMUM. INSTALL 90 DEGREE BEND WITH 1-1/2" x 10 GA. STAINLESS STEEL STRAP, INSTALL CHANNEL TO DIRECT FLOW. ANCHOR SECURELY. NOTES: 1. THE USE OF INSIDE DROP MANHOLES WILL REQUIRE APPROVAL OF THE CITY ENGINEER. THE USE OF INSIDE DROP MANHOLES WILL BE LIMITED TO ONLY SINGLE-FAMILY AND MULTI-FAMILY RESIDENCES FOR CONNECTIONS TO EXISTING DEEP SANITARY SEWER SYSTEMS. NOT APPLICABLE TO COMMERCIAL OR INDUSTRIAL APPLICATIONS. 2. ONLY ONE INSIDE DROP CONNECTION ALLOWED PER MANHOLE. PIPE INVERT ELEVATIONS SHALL BE AS SHOWN ON THE PLANS. 3. MINIMUM MANHOLE DIAMETER WITH INSIDE DROP CONNECTION SHALL BE 48-INCHES. 4. MAXIMUM DROP PIPE DIAMETER SHALL BE 6-INCHES. 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 SANITARY NAME DATE STANDARD INSIDE 362 N. THIRD AVENUE STAYTON, OR 97383 DRAWING NO. PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 DROP MANHOLE 510 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user. SLOPE SHELVES 1:12 TO DRAIN MANHOLE STEPS PIPE INVERTS AND MANHOLE ELEVATIONS PER PLANS PIPE SHALL BE SAWCUT CLEAN TO PROVIDE 24" WINDOW OPENING AS SHOWN MANHOLE FRAME AND COVER, SEE STD DWG 516 GRADE RINGS. 12" MAX 12" MAX SLOPE OF PRECAST 24" MAX ECCENTRIC CONE SHALL FACE DOWNSTREAM 12" STANDARD MANHOLE, SEE STD DWG 502 ALL OPENINGS SHALL BE CORE DRILLED. PROVIDE 24" WINDOW FLEXIBLE MANHOLE TO PIPE OPENING CONNECTION, KOR-N-SEAL, OR APPROVED EQUAL CONCRETE BENCH PIPE SHALL BE SAWCUT CLEAN TO SPRINGLINE TO PROVIDE 24" WINDOW OPENING FOR MONITORING AS SHOWN 6" MIN COMPACTED 3/4"-0" GRANULAR BASE ROCK STABLE SUBGRADE NOTES: 1. ALL MANHOLE SECTIONS SHALL CONFORM TO THE REQUIREMENT OF ASTM C478. SEE STANDARD DRAWING 502 FOR STANDARD MANHOLE DETAILS. 2015 EDITION STANDARD DRAWING TITLE NO SCALE DEPARTMENT OF REVIEWED BY DIVISION PUBLIC WORKS JTA / LSL 09/15 STANDARD SANITARY NAME DATE 362 N. THIRD AVENUE DRAWING NO. STAYTON, OR 97383 FLOW MONITORING PH: (503) 769-2919 REVISIONS FAX: (503) 767-2134 MANHOLE 512 The selection and use of this Standard Drawing, while designed in accordance with standard engineering principles and practices, is the sole responsibility of the user.
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