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The manual establishes a baseline for common construction elements, including highway crossings, tunnel approaches, encasement and embedment classifications, thrust blocks, valve and meter installation details, manhole frames and covers, and related general notes. 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utlitiescity of dallas\n\n## STANDARD DRAWInGS FORWATER &WASTEWATER CONSTRUCTION\n\nOctober 2021  \n\n| City of Dallas   | Document Number:   | DWU-PRO-019-ENG   | Revision Number:   | 2   |\n| --- | --- | --- | --- | --- |\n|  | Approved By:   | Engineering Services Division  \u003Cbr>Manager   | Effective Date:   | 08/01/2021   |\n|  | Description of Last Change:   | Revision 1   |  |  |\n| Document Title:   | Standard Drawings For Water And Wastewater Construction   |  |  |  |\n\n## PREFACE\n\nThe intent of this manual is to provide guidelines for the standard appurtenances ofwater and wastewater mains owned and operated by Dallas Water Utilities(DWU).This manual replaces the previous edition of “Standard Drawings for Water andWastewater Construction”by DWU dated October,2017.  \nThis edition of\"Standard Drawings for Water and Wastewater Construction\"is writtenby Engineering Services,Dallas Water Utilities.Any questions or suggestionsregarding to this manual should be forwarded to Engineering Services,Dallas WaterUtilities.  \nCopies Available On-line At:  \nhtttp:/www.dallascityhall.com/dwu/dwu design standards.html  \n## PART 1-COMMON FOR WATER &WASTEWATER CONSTRUCTION\n\nBy Other Than Open Cut(Non-T.x.D.O.T.-Non Railroad)---101Highway Crossing -All Wastewater 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(2of2)---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+\"---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---120Project Construction Sign---121  \n## PART 2-WATERMAIN CONSTRUCTION\n\nMeter Box(5/8”and 2”)With Ductile Ring and Cover---200Meter Box(5/8”and 2\")With Plastic Ami Lid---200A3/4\"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 (Sidewalk 5'from Curb)---206Bull Head Wate Services---206AInstallation Requirements For AMI Meter206B  \nAMI Meter Installation Details For 2”Or Smaller Meters---206CAMI Meter Installation Details For 3”And Larger Meters---206DFlush Point Installation--Type 1---207Automatic Flush Point---207AAutomatic Flush Point Location---207BTemporary Flush Point With Sample Point Installation---207CAir Release Valve--Type 1---208Air Release Valve--Type 2(Elevation)---209Air Release Valve--Type 2(Details)----210General Notes--Type 2 Air Valve---211Horizontal Gate Valve With Manhole Installation(Plan)---212Horizontal Gate Valve With Manhole Installation(Elevation)---213Butterfly Valve With Manhole Installation(Plan)---214Butterfly Valve With Manhole Installation(Elevation)---215Large Main Blow-Off---215AGeneral Notes For Large Valves With Manholes---216Large Tapping Valve Installation--217Operating Nu","cbCaitJohdYe3RRe","https://ap.wps.com/l/cbCaitJohdYe3RRe","pdf",8879018,222,"English","# PREFACE\n# PART 1 - COMMON FOR WATER & WASTEWATER CONSTRUCTION\n## Highway Crossing Details\n## Encasement and Embedment Details\n## Trench and Backfill Details\n## Project Construction Sign\n# PART 2 - WATERMAIN CONSTRUCTION\n## Meter Box and Water Service Installations\n## AMI Meter and Flush/Air Release Valves\n## Gate and Butterfly Valves with Manholes\n## Fire Hydrant and Thrust Block Details\n## Embodiment Types-Specified For Water Mains\n# PART 3 - WASTEWATER MAIN CONSTRUCTION\n## Wastewater Manholes and General Notes\n## Manhole Frame and Cover Details","[{\"question\":\"What is the purpose of this DWU manual?\",\"answer\":\"It provides guidelines and standard details for the standard appurtenances of water and wastewater mains owned and operated by Dallas Water Utilities (DWU).\"},{\"question\":\"How does this edition relate to the previous 2017 version?\",\"answer\":\"It replaces the previous edition of “Standard Drawings for Water and Wastewater Construction” dated October 2017.\"},{\"question\":\"What drawing categories are included in the manual?\",\"answer\":\"The manual is organized into Part 1 (common elements for water and wastewater construction), Part 2 (watermain construction), and Part 3 (wastewater main construction), covering numerous standard details and notes.\"}]","Standard Drawings for Water and Wastewater Construction - Revision 2 - Guidelines | PDF",559]