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The manual replaces prior editions and records a revision timeline from the 1984 first edition through 2012, noting updates to meet new construction standards and added AMI Standard Drawings, project sign specifications, and flush point drawings. It then organizes common and trade-specific standard drawings covering non-open cut crossings, utility support, embedment and trench calculations, and detailed water main 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the standard appurtenances of water and wastewatermains owned and operated by Dallas Water Utilities(DWU).This manual replaces the third edition of\"Standard Drawings for Water and Wastewater Construction\"by DWU dated February,2009.Thechronological list of events in developing this manual is summarized as follows:  \nJAN,1984 FIRST EDITION:  Standard drawings are compiled into the first edition of the manual.  \nMAY,1998 SECOND EDITION:The 1984 manual is revised and retitled.This edition includes revisionsmade in 1985,1986,1989 and 1991.  \nFEB.2009 THIRD EDITION:The 1998 manual is revised to accommodate new constructionstandards required by 30 TAC§217.This edition includes minorrevisions made in 2003.  \nOCT.2010 FOURTH EDITION:The 2009 manual is revised to accommodate new constructionstandards required by Public Works Construction Standards for NorthCentral Texas by North Central Council of Governments(NCTCOG),October 2004.This edition includes minor revisions made in 2009 and2010.  \nThe 2011 manual includes minor revisions made in 2011.Henceforth,this edition and all subsequent editions will be designated by the year ofpublication.  \nOCTOBER 2011:  \nThe 2012 manual includes three new AMI Standard Drawings,aProject Construction Sign Technical Specifications,two new FlushPoint drawings,and several revisions of some of the existing StandardDrawings.  \nOCTOBER 2012:  \nThis edition of“Standard Drawings for Water and Wastewater Construction”is written by EngineeringServices,Dallas Water Utilities.Any questions or suggestions regarding to this manual should beforwarded to Engineering Services,Dallas Water Utilities.  \nPrinted Copies Available(For Fee Payment)  \nAt Mapping&Capital Services-Vaults,Maps &Plans320E.Jefferson Blvd.Room 215Dallas,Texas 75203214-948-4584  \nCopies Also Available On-line At:  \nhttp://www.dallascityhall.com/dwu/dwu_design_standards.html  \n## PART1-COMMON FOR WATER&WASTEWATER CONSTRUCTION\n\nBy Other Than Open Cut(Non-T.x.D.O.T.-Non Railroad)---101Highway Crossing-AllWastewater Mains &for Water Mains 12\"and Under in Diameter.---102Highway Crossing -For Water Mains Over 12\"Diameter---103Highway Crossing-Encasement Pipe,Gauge,Class,&Cover(12”to 72”Dia.)---104Highway Crossing -Encasement Pipe,Gauge,Class,&Cover(78”to 138”Dia.)---105Highway Crossing -T.x.D.O.T.Requirements(lof 2)---106Highway Crossing-T.x.D.O.T.Requirements(2of 2)---107Tunnel Approaches--With Casing Spacers---108Carrier Pipe Support--Tunnel---109Hold-Down -Jack Fabrication Detail---109AEmbedment Detail for Non-Pressure Rated Wastewater Mains Below Water Mains---110Encasement Detail for Non-Pressure Rated Wastewater Mains Above Water Mains---111Encasement Detail for Proposed Water Mains Below Wastewater Mains---111ATrench Width --Calculations For “Bd”---112Embedment--Class \"A\"and Class \"A-1\"---113Embedment--Class \"B\",Class \"B+\",and Class \"B-1\"---114Embedment--Class \"B-2\",Class \"B-3\",and Class \"B-4\"---115Embedment--Class \"C\",Class \"C+\",and Class \"C-1\"---116Embedment--Class \"C-2\"and Class \"D+\"  \n---117Embedment--Class \"G\"and Class \"G-1\"---118Embedment--Class \"B-1a\",Class \"B-2a\",and Class \"B-5\"---119Contaminated Soil Clay Cut-Off Dam---119AEmbedment--Class \"E-1\"&“E-2”Landfill---119BEmbedment--Class \"E3\"High Chemical of Concern Zone---119CStabilized Backfill &Rip-Rap Detail For Embankment Slope Protection---120Type“A”Utility Support---121Project Construction Sign Technical Specifications---122  \n## PART2-WATER MAIN CONSTRUCTION\n\n3/4\"Water Service Installations(Sidewalk Adjacent to Curb)---2011\"Water Service Installations (Sidewalk Adjacent to Curb)--    2021/2\"or 2\"Water Service Installations(Sidewalk Adjacent to Curb)--     2033/4\"Water Service Installations (Sidewalk 5'from Curb)---2041\"Water Service Installations (Sidewalk 5'from Curb)---2051/2\"or 2\"Water Service Installations(Sid","cbCaidnst81Jjqm0","https://ap.wps.com/l/cbCaidnst81Jjqm0","pdf",6479531,175,"English","# Preface\n# Part 1 - Common for Water & Wastewater Construction\n# Part 2 - Water Main Construction\n# Part 3 - Wastewater Main Construction","[{\"question\":\"What is the purpose of the Standard Drawings manual for DWU?\",\"answer\":\"To provide guidelines and standardized drawings for water and wastewater mains owned and operated by Dallas Water Utilities.\"},{\"question\":\"Which previous edition does the October 2012 manual replace?\",\"answer\":\"It replaces the third edition dated February 2009.\"},{\"question\":\"How is the October 2012 manual organized?\",\"answer\":\"It is structured into parts, including common drawings, water main construction, and wastewater main construction, with detailed numbered standard drawing listings in each part.\"}]","Standard Drawings for Water and Wastewater Construction - October 2012 Edition | PDF",441]