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City of Bellevue, WA Utilities
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  5. Utilities Projects, Plans and Standards
  6. Utilities Codes and Standards
  7. Water Engineering Standards
  8. 2021 Water Engineering Standards Details

    Water Engineering Standards

    • 2023 Details
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    2021 Water Engineering Standards Details

    2021 Water Engineering Standards

    W-1: Concrete Blocking 

    W-2: Vertical Blocking with Restrained Joints for New Lines 

    W-3: Vertical Blocking for Connecting to Existing Main 

    W-4: Concrete Slope Anchor Detail 

    W-5: Pipe Clamp and Anchor Rods for Concrete Blocking 

    W-6: Typical Trench Detail 

    W-7: Casing Installation 

    W-8: Typical A.C. Water Main Crossing Replacement Detail 

    W-9: Filling New Water Mains 

    W-10: Tapping Tees 

    W-11: Valve Box Installation 

    W-12: Valve Operating Extension 

    W-13: Fire Hydrant Assembly 

    W-14: Fire Hydrant Guard Post & Valve Marker Post 

    W-15: 2" Blow-Off Assembly 

    W-16: 1" Air Release Valve Assembly 

    W-17: Standard Pressure Reducing Station 

    W-18: Typical P.R.V. Schematic 

    W-19: Pressure Reducing Station Access Ladder and Pressure Relief Drain 

    W-20: Individual Pressure Reducing Valve Assembly (Residential) 

    W-21: Individual Pressure Reducing Valve Assembly (Multi-Family or Commercial) 

    W-22: Individual Pressure Reducing Valve Assembly with Pressure Relief (Multi-Family or Commercial) 

    W-23: 1" X 1" Water Service (Horizontal Meter Setter) 

    W-24: 1" X 1" Water Service (Vertical Mater Setter) 

    W-25: 1 ½” Domestic Water and/or Fire Service 

    W-26: 1 ½” Domestic Water Service (Commercial and Multi-Family) 

    W-27: 1 ½” Irrigation Water Service 

    W-28: 1 ½” Irrigation Water Service (Commercial and Multi-Family) 

    W-29: 2" Domestic Water and/or Fire Service 

    W-30: 2" Domestic Water Service (Commercial and Multi-Family) 

    W-31: 2" Irrigation Water Service 

    W-32: 2" Irrigation or Fire Sprinkler Water Service (Commercial and Multi-Family) 

    W-33a: 3" Domestic Meter Installation 

    W-33b: 3" Domestic Meter Materials List and Vault Requirements  

    W-33c: 4” Domestic Water Meter Installation 

    W-33d: 4” Domestic Meter Materials List and Vault Requirements 

    W-33e: 6” Domestic Meter Installation 

    W-33f: 6” Domestic Meter Materials List and Vault Requirements 

    W-34a: 8" Domestic Meter Installation 

    W-34b: 8” Domestic Meter Materials List and Vault Requirements 

    W-35: 3" to 6" Irrigation Meter Installation 

    W-36: 1" to 2" Double Check Valve Assembly for Irrigation System (Outside Installation) 

    W-37: (Not Used)

    W-38: Double Check Valve Assembly (Inside Installation) 

    W-39: Outside DCVA Installation for 1½” to 2" Commercial Fire Sprinkler Systems 

    W-40: Outside DCVA Installation for 3" or Larger Commercial Fire Sprinkler Systems 

    W-41: 1 ½” TO 2” Domestic Double Check Valve Assembly For Continuous Supply (Outside Installation) 

    W-42: 3” TO 6” Domestic Double Check Valve Assembly For Continuous Supply (Outside Installation) 

    W-43: 8" and 10" Domestic Double Check Valve Assembly for Continuous Supply (Outside Installation) 

    W-44: 3" to 10" Double Check Valve Assembly for Domestic and Irrigation Services (Outside Installation) 

    W-45: 3" to 10" Double Check Detector Assembly for Fire Sprinkler Systems (Outside Installation) 

    W-46a: Reduced Pressure Backflow Assembly for Domestic and Irrigation Service (Outside Installation) 

    W-46b: 3" to 10" Reduced Pressure Backflow Assembly for Domestic and Irrigation Service (Buried Vault Installation) 

    W-47: 3" to 10" Reduced Pressure Detector Assembly for Fire Sprinkler Systems (Outside Installation) 

    W-48: Reduced Pressure Backflow Assembly (Inside Installation) 

    W-49: (Not Used)

    W-50: Requirements for FDC and Check Valve Routed Through Backflow Assembly Vault - 2 

    W-51: (Not Used)

    W-52: (Not Used)

    W-53: Project Sign Detail 

    W-54: Roadway Clearances for Above Ground Appurtenances 

    W-55: Fireline Valve Marker 

    W-56: Thrust Block Adjacent to Vault

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