HomeMy WebLinkAboutPRE-649919-010-CMP CON-A11815 NE Glenn Widing Drive, Portland, OR 97220800-548-4667 503-240-3393 800-561-1271 FAXDDBDADC60"Ø BULKHEAD B136"Ø STUB B22"Ø STUB B360"Ø BULKHEAD C136"Ø STUB C265'-0"12'-6"6'-3"36"Ø RISER A1
5'-0"36"Ø RISER B45'-0"36"Ø RISER C3JMDJMDCHECKED:DRAWN:JMDDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\649900\649919\649919-10-CMP DETENTION\DRAWINGS\649919-010-CMP CONFAB.DWG 7/21/2020 2:59 PM
SHEET NO.:OFC1 DATE:PROJECT No.:649919SEQ. No.:010CONTRACTCONTECHDRAWING60"Ø UNDERGROUND DETENTION SYSTEM - 649919-010LA FORTUNA PHASE IIIRENTON, WASITE DESIGNATION: DETENTION TANKThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comTHE UNDERSIGNED HEREBY APPROVES THE ATTACHED(5) PAGES INCLUDING THE FOLLOWING:CUSTOMER·PIPE STORAGE = 2,602 CF·MAINLINE PIPE GAGE = 16·WALL TYPE = SOLID·DIAMETER = 60"·FINISH = ALT2·CORRUGATION = 5x1DATE5REVISION DESCRIPTIONDATEMARKBY BAND, TYPICALSEE DETAIL SHEET C3NOTES·ALL RISER AND STUB DIMENSIONS ARE TO CENTERLINE.·ALL ELEVATIONS, DIMENSIONS, AND LOCATIONS OF RISERS AND INLETS, SHALL BE VERIFIEDBY THE ENGINEER OF RECORD (EOR) PRIOR TO RELEASING FOR FABRICATION.· ALL FITTINGS AND REINFORCEMENT COMPLY WITH ASTM A998.· ALL RISERS AND STUBS ARE 223" x 12" CORRUGATION AND 16 GAGE UNLESS OTHERWISENOTED.·RISERS TO BE FIELD TRIMMED TO GRADE AS REQUIRED, BY CONTRACTOR.·QUANTITY OF PIPE SHOWN DOES NOT PROVIDE EXTRA PIPE FOR CONNECTING THE SYSTEM TOEXISTING PIPE OR DRAINAGE STRUCTURES. OUR SYSTEM AS DETAILED PROVIDES NOMINALINLET AND/OR OUTLET PIPE STUB FOR CONNECTION TO EXISTING DRAINAGE FACILITIES. IFADDITIONAL PIPE IS NEEDED IT IS THE RESPONSIBILITY OF THE CONTRACTOR.·ALL ACCESS CASTINGS ARE THE RESPONSIBILITY OF THE CONTRACTOR AND ARE NOTSUPPLIED BY CONTECH.ASSEMBLYSCALE: 1" = 10'PIPE STORAGE: 2,602 CFLOADING: H20PIPE INV. = 392.0'±7/21/2020STUB INFORMATIONPIECESTUB INVERTSYSTEMINVERT36"Ø STUB B2392.50392.002"Ø STUB B3396.83392.0036"Ø STUB C2392.50392.00RISER INFORMATIONPIECERIM ELEV.SYSTEMINVERT36"Ø RISER A1401.50392.0036"Ø RISER B4401.50392.0036"Ø RISER C3401.00392.00
TYPICAL SECTION VIEWNOT TO SCALENOTE: IF SALTING AGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THEPROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THEGEOMEMBRANE LINER IS INTENDED TO HELP PROTECT THE SYSTEM FROM THEPOTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THESURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THECORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION.60" TYP.30"TYP.21" SEE TYPICALBACKFILL DETAILNOTESLIMITS OFREQUIREDBACKFILL20 MIL PEIMPERMEABLELINER OVERTOP OF PIPE(IF REQUIRED)DIAMETERMIN.COVERCORR.PROFILE6"-10"12"1 1/2" x 1/4"12"-48"12"2 2/3" x 1/2"54"-96"12"3" x 1", 5" x 1"102"-144"D/83" x 1", 5" x 1"BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26)1MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE. THE MINIMUM TRENCH WIDTH (12.6.6.1):PIPE ≤ 12": D + 16"PIPE > 12": 1.5D + 12"1aMINIMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2):PIPE < 24": 3.0DPIPE 24" - 144": D + 4'0"PIPE > 144": D + 10'0"2THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT (26.5.2).3ENGINEER TO DETERMINE IF BEDDING IS REQUIRED. BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLYSHAPED TO FIT THE BOTTOM OF THE PIPE, AND A MINIMUM OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUMPARTICLE SIZE OF ONE-HALF OF THE CORRUGATION DEPTH (26.3.8.1, 26.5.3).4CORRUGATED STEEL PIPE (CSP / HEL-COR).5HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4).5a INITIAL BACKFILL FOR PIPE EMBEDMENT TO MEET AASHTO A-1, A-2 OR A-3 CLASSIFICATION, OR APPROVED EQUAL, COMPACTED TO 90%STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3" (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER. IT ISRECOMMENDED THAT LIFTS NOT EXCEED AN 8" UNCOMPACTED LIFT HEIGHT TO PREVENT UNEVEN LOADING, AND THE LESSER OF 1/3THE DIAMETER OR 24" AS THE MAXIMUM DIFFERENTIAL SIDE-TO-SIDE (26.5.4).6INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE.6aTOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OFFLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.6.3).7FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONSPER THE ENGINEER OF RECORD (26.5.4.1).NOTES:·ENGINEER TO DETERMINE IF GEOTEXTILE SHOULD BE USED TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECTENGINEER).·FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA./2BUT NO LESS THAN 12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER.·CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1).6FINAL BACKFILLINITIAL BACKFILL 6aBEDDINGFOUNDATIONPIPE EMBEDMENT
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)IN SITU5a75324TYPICAL BACKFILL DETAILNOT TO SCALEEMBANKMENT CONDITIONTRENCH CONDITIONINITIAL FILL ENVELOPE 1 1a11815 NE Glenn Widing Drive, Portland, OR 97220800-548-4667 503-240-3393 800-561-1271 FAXJMDJMDCHECKED:DRAWN:JMDDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\649900\649919\649919-10-CMP DETENTION\DRAWINGS\649919-010-CMP CONFAB.DWG 7/21/2020 2:59 PM
SHEET NO.:OFC2 DATE:PROJECT No.:649919SEQ. No.:010CONTRACTCONTECHDRAWING60"Ø UNDERGROUND DETENTION SYSTEM - 649919-010LA FORTUNA PHASE IIIRENTON, WASITE DESIGNATION: DETENTION TANKThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com5REVISION DESCRIPTIONDATEMARKBY 7/21/2020
11815 NE Glenn Widing Drive, Portland, OR 97220800-548-4667 503-240-3393 800-561-1271 FAX12" TECHCO BAND ANGLES 1/2" DIA. BOLT12" RISER BAND DETAILNOT TO SCALEPLAIN END CMP RISER PIPECONNECTION DETAIL7 1/2" TECHCO SHOWN - MAY VARYSTUB HEIGHT2'-0" RECOMMENDED12" MIN.MAINLINEPIPERISEREXTENSIONFLAT BAND SHOWN,MAY VARY (NOGASKET)GENERAL NOTES:1.DELIVERED BAND STYLE AND FASTENER TYPE MAY VARY BY FABRICATION PLANT.2.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.3.BAND MATERIAL AND GAGE TO BE SAME AS RISER MATERIAL.4.IF RISER HAS A HEIGHT OF COVER OF 10' OR MORE, USE A SLIP JOINT.5.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" 2-PIECES6.ALL RISER JOINT COMPONENTS WILL BE FIELD ASSEMBLED.7.MANHOLE RISERS IN APPLICATIONS WHERE TRAFFIC LOADS ARE IMPOSED REQUIRE SPECIAL DESIGN CONSIDERATIONS.8.DIMENSIONS SUBJECT TO MANUFACTURING TOLERANCES.ELEVATION VIEWOF CMP AND RISERTECHCO BAND ANGLES1/2" DIA.BOLTFLAT GASKETFLAT GASKETCORRUGATEDBAND2 2/3"x1/2" RIVETED PIPE10-C BAND DETAILNOT TO SCALEGENERAL NOTES:1.JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26.4.2.4.2.BAND MATERIALS AND/OR COATING CAN VARY BY LOCATION. CONTACT YOUR CONTECH REPRESENTATIVE FOR AVAILABILITY.3.BANDS ARE SHAPED TO MATCH THE PIPE-ARCH WHEN APPLICABLE.4.BANDS ARE NORMALLY FURNISHED AS FOLLOWS:·12" THRU 48" 1-PIECE·54" THRU 96" 2-PIECES·102" THRU 144" 3-PIECES5.BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.6.ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 2/3"x1/2"7.DIMENSIONS ARE SUBJECT TO MANUFACTURING TOLERANCES.8.ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).CONNECTION DETAIL24" TECHCO25 1/2"JMDJMDCHECKED:DRAWN:JMDDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\649900\649919\649919-10-CMP DETENTION\DRAWINGS\649919-010-CMP CONFAB.DWG 7/21/2020 2:59 PM
SHEET NO.:OFC3 DATE:PROJECT No.:649919SEQ. No.:010CONTRACTCONTECHDRAWING60"Ø UNDERGROUND DETENTION SYSTEM - 649919-010LA FORTUNA PHASE IIIRENTON, WASITE DESIGNATION: DETENTION TANKThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com5REVISION DESCRIPTIONDATEMARKBY 7/21/2020
MANHOLE CAP DETAILNOT TO SCALE8"11" TYP.2" COVER
TYP.1" GAP (TYP. ALL
SIDES)NOTES:1.DESIGN IN ACCORDANCE WITH AASHTO, 17thEDITION AND ACI 350.2.DESIGN LOAD HS25.3.EARTH COVER = 1' MAX.4.CONCRETE STRENGTH = 4,000 psi5.REINFORCING STEEL = ASTM A615, GRADE 60.6.PROVIDE ADDITIONAL REINFORCING AROUNDOPENINGS EQUAL TO THE BARS INTERRUPTED,HALF EACH SIDE. ADDITIONAL BARS TO BE IN THESAME PLANE.AA 2" COVER(TYP)SECTION VIEWROUND OPTION PLAN VIEWSQUARE OPTION PLAN VIEWØ CMP RISERINTERRUPTED BARREPLACEMENT,SEE NOTE 6.STANDARDREINFORCING,SEE TABLEOPENING INPROTECTIONSLAB FORACESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.AINTERRUPTED BARREPLACEMENT, SEENOTE 6.BOPENING INPROTECTIONSLAB FORACCESS#4 DIAGONAL TRIMBAR (TYP. 4 PLACES),SEE NOTE 7.STANDARDREINFORCING,SEE TABLEGASKET MATERIALSUFFICIENT TO PREVENTSLAB FROM BEARING ONRISER TO BE PROVIDED BYCONTRACTOR.2" COVER(TYP.)ØBREINFORCING TABLEØ CMPRISERAB ØREINFORCING**BEARINGPRESSURE(PSF)24"4'Ø4'x4'26"#5 @ 10" OCEW#5 @ 10" OCEW2,5401,90030"4'-6"Ø4'-6" x 4'-6"32"#5 @ 10" OCEW#5 @ 9" OCEW2,2601,67036"5'Ø5' x 5'38"#5 @ 9" OCEW#5 @ 8" OCEW2,0601,50042"5'-6"Ø5'-6" x 5'-6"44"#5 @ 8" OCEW#5 @ 8" OCEW1,4901,37048"6'Ø6' x 6'50"#5 @ 7" OCEW#5 @ 7" OCEW1,2101,270** ASSUMED SOIL BEARING CAPACITY1'-0"A2
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)7.TRIM OPENING WITH DIAGONAL #4 BARS, EXTEND BARS AMINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIREDTO MAINTAIN BAR COVER.8.PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED ANDINSTALLED BY CONTRACTOR.9.DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LANDSURVEYORS, ENDWELL, NY.ØB36"Ø MAX., HS-25 ACCESS CASTINGWITH GRADE RINGS AS REQUIRED, TOBE PROVIDED AND INSTALLED BYCONTRACTOR. MAY BE TOP MOUNTED(AS SHOWN) OR RECESSED.CMPPROTECTIONSLABVARIESRIM/FINISHEDGRADEACCESS CASTING NOT SUPPLIED BY CONTECH11815 NE Glenn Widing Drive, Portland, OR 97220800-548-4667 503-240-3393 800-561-1271 FAXJMDJMDCHECKED:DRAWN:JMDDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\649900\649919\649919-10-CMP DETENTION\DRAWINGS\649919-010-CMP CONFAB.DWG 7/21/2020 2:59 PM
SHEET NO.:OFC4 DATE:PROJECT No.:649919SEQ. No.:010CONTRACTCONTECHDRAWING60"Ø UNDERGROUND DETENTION SYSTEM - 649919-010LA FORTUNA PHASE IIIRENTON, WASITE DESIGNATION: DETENTION TANKThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.comCONSTRUCTION LOADSFOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRA AMOUNT OF COMPACTED COVER MAY BE REQUIRED OVERTHE TOP OF THE PIPE. THE HEIGHT-OF-COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW.THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHEDGRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC.PIPE SPAN,INCHES18-50MINIMUM COVER (FT)AXLE LOADS(kips)50-7575-110110-15012-422.02.53.03.04.03.53.048-723.03.078-1203.54.04.04.54.54.0126-1443.5*MINIMUM COVER MAY VARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONALCOVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TOTHE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE. HEIGHT OFCOVERTEMPORARY COVER FORCONSTRUCTION LOADSFINISHEDGRADE CONSTRUCTION LOADING DIAGRAMNOT TO SCALESCOPETHIS SPECIFICATION COVERS THE MANUFACTURE ANDINSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED INTHE PROJECT PLANS.MATERIALTHE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TO THEAPPLICABLE REQUIREMENTS OF AASHTO M274 OR ASTM A929.PIPETHE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THEAPPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM A760. THEPIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ONTHE PROJECT PLANS.ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THEUNITED STATES.HANDLING AND ASSEMBLYSHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THENATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA)INSTALLATIONSHALL BE IN ACCORDANCE WITH AASHTO STANDARDSPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION IIOR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANSAND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES ORCONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVEWITH THE SITE ENGINEER.IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TOFOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.SPECIFICATION FOR CORRUGATED STEEL PIPE-ALUMINIZED TYPE 2 STEELMATERIAL SPECIFICATIONNOT TO SCALE5REVISION DESCRIPTIONDATEMARKBY 7/21/2020
RISER LADDER DETAILNOT TO SCALEPART NO. HALAGVL16PLANAA3"±6"(2) 14" FILLET WELDS1" LONG FROM EACH ANGLETO LADDER RAILRISER w/ LADDER AND STEPS IF EXTENSION IS REQUIREDPROVIDE MINIMUM OF 4 ATTACHMENTANGLES (2 ON EITHER SIDE OF LADDER RAIL)TO CONNECT LADDER TO RISER EXTENSIONRISER w/ LADDERAND STEPSMAINLINE CMP223 x 12, 5 x 1, 3 x 1, ETC.1'-6"MAX.℄ PIPE ∠5" x 3" x 14" x 16" LONG AT 1'-0"SPACING. LONG LEG TOPROJECT OUT. WELD TOPAND BOTTOM OF 3" LEG TO EACHCORRUGATION CREST(THESE ANGLES SHOULD BE USEDFOR LARGER DIAMETERMAINLINES WHERE ADDITIONALSTEPS ARE NEEDED)6" FROM RUNG TORISER JOINT6" FROM RUNG TORISER JOINT*NOTE: WHEN RISER EXTENSIONSARE USED, THE PLANT SHOULDCUT 3" FROM THE SIDE RAILS ASSHOWN(4) 116" FILLET WELDSFROM EACH ANGLE TOCORRUGATION CREST(2 WELD EACH SIDE)RISER NORMALLY CMPWITH 223" x 12"CORRUGATIONSLADDER RAILS AND RUNGS(2) 14" FILLET WELDS 1" LONGATTACHMENT ANGLEMINIMUM OF 4 ANGLES PERLADDER SECTION, (2 EACH SIDE OFLADDER) 6' MAX. SPACINGVERTICALLYLADDER RAILSAND RUNGS∠3" x 3" x 316"512" LONGRISER(4) 116" FILLET WELDS FROMEACH ANGLE CORRUGATIONCREST (2 WELDS EACH SIDE)(4) ∠3" x 3" x 316"512" LONGLADDER RAILSAND RUNGS∠3" x 3" x 316"512" LONG(4) 116" FILLET WELDSFROM EACH ANGLE TOCORRUGATION CREST(2 WELDS EACH SIDE)ELEVATIONSECTION A-AFABRICATION TOLERANCE: ±14"FLAT BAR AND REBAR: MILLTOLERANCE APPLIES12" TYP.CENTER TO CENTERRUNG SPACING34" (#6) REBAR CAN BE CUT FLUSHTO OUTSIDE OF RAIL(BAR LENGTH = 1634") OR BAR CANEXTEND BEYOND RAIL 12"±78" HOLE w/ 34" REBAR RUNG,WELD REBAR TO RUNG ONOUTSIDE OF STEEL RAIL212" x 38" FLAT BAR SIDE RAIL1'-4"1'-4"6"212"6"*3" FROM BOTTOM OF LADDERRAIL TO RISER JOINT*3" FROM TOP OF LADDERRAIL TO RISER JOINT1'-0"ALL STEEL PERASTM A361'-0"TYP.PLANSIDENOTE:THIS DRAWING IS INTENDED TO APPLY TO LADDERSINSTALLED IN RISERS HAVING A DIAMETER OF 30" ORLARGER. DUE TO SPACE CONSTRAINTS AND LIMITEDACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OFUTILIZING RISERS SMALLER THAN 30" DIAMETERAND/OR INCORPORATING LADDERS IN THESE SMALLERDIAMETER RISERS SHOULD BE ADDRESSED BY THEOWNER AND PROJECT ENGINEERSTANDARD LADDER DETAILNOT TO SCALENOTES:1.LADDERS CAN BE MADE IN 20'-0" STANDARD LENGTHS AND CUT TO FIT2.ALL MATERIAL TO MEET ASTM A363.LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTERFABRICATION IS COMPLETE3/8"TYP.11815 NE Glenn Widing Drive, Portland, OR 97220800-548-4667 503-240-3393 800-561-1271 FAXJMDJMDCHECKED:DRAWN:JMDDESIGNED:APPROVED:I:\MERLIN\PROJECT\ACTIVE\649900\649919\649919-10-CMP DETENTION\DRAWINGS\649919-010-CMP CONFAB.DWG 7/21/2020 2:59 PM
SHEET NO.:OFC5 DATE:PROJECT No.:649919SEQ. No.:010CONTRACTCONTECHDRAWING60"Ø UNDERGROUND DETENTION SYSTEM - 649919-010LA FORTUNA PHASE IIIRENTON, WASITE DESIGNATION: DETENTION TANKThe design and information shown on this drawing is providedas a service to the project owner, engineer and contractor byContech Engineered Solutions LLC ("Contech"). Neither thisdrawing, nor any part thereof, may be used, reproduced ormodified in any manner without the prior written consent ofContech. Failure to comply is done at the user's own risk andContech expressly disclaims any liability or responsibility forsuch use.If discrepancies between the supplied information upon whichthe drawing is based and actual field conditions are encounteredas site work progresses, these discrepancies must be reportedto Contech immediately for re-evaluation of the design. Contechaccepts no liability for designs based on missing, incomplete orinaccurate information supplied by others.www.ContechES.com5REVISION DESCRIPTIONDATEMARKBY 7/21/2020