Standard Plans & Specifications

The “City of Napa Standard Specifications and Standard Plans” (City Standards) is a document that provides a summary and guide to key elements of the regulations and policies governing the design and construction of public improvements within the City of Napa.

The City of Napa requires design engineers, developers, and contractors to comply with the City Standards for projects within the City right-of-way and for City maintained facilities within easements. City Standards are intended to create uniformity of constructed infrastructure. Standardization of constructed facilities provides the City with the best value by minimizing long-term maintenance and operational costs.

The City Standards are organized by the following categories: Streets, Electrical, Drainage, Stormwater, Water, Parks and Landscaping, Street Trees, and Fire.

If you would like to purchase a hard-copy set of the City Standards you can do so at the City of Napa Community Services Building, 1600 First Street.

Standard Plans & Specifications (updated October 2018):

Combined Documents

  1. City of Napa Standard Plans
  1. City of Napa Standard Specifications

Streets Standard Plans

  1. Combined Streets Standard Drawings
  2. S-1 Standard Curb and Gutter
  3. S-1A Standard Curb and Gutter 12inch Gutter
  4. S-2 A1-6 and B-3 Curbs
  5. S-3 Transition Detail - Rolled Curb to Standard Curb and Gutter
  6. S-4 Standard Details - Sidewalk Sections
  7. S-4A Fire Hydrant Location - For Curb Adjacent Sidewalk
  8. S-4B Concrete Connections
  9. S-5 Standard Driveway Approach
  10. S-5A Standard Driveway Approach - Short Ramp
  11. S-5B Standard Driveway Approach - With Curb Ramps
  12. S-6A Street Standard - Major Arterials
  13. S-6B Street Standard - Minor Arterials
  14. S-6C Street Standard - Collectors
  15. S-6D Street Standard - Local Streets
  16. S-6E Street Standard - Hillside Local Street
  17. S-6F Street Standard - Rural Local Street
  18. S-7A Typical Residential Cul-de-Sac
  19. S-7B Typical Commercial Industrial Cul-De-Sac
  20. S-7C Partial Residential Cul-De-Sac Adjacent to Future Developement - Fire Enigne
  21. S-7D Partial Residential Cul-De-Sac Adjacent to Future Developement - Ladder Truck
  22. S-8 Standard Curb Return - Curb, Gutter and Sidewalk
  23. S-9 Caltrans Revised Standard Plan A88A Curb Ramp Details
  1. S-10 Pavement Section Edge Protection
  2. S-11A Standard P.C.C. Cross Gutter
  3. S-11B Standard Street Profile at P.C.C. Cross Gutter
  4. S-12 Standard Backfill Detail
  5. S-13 Standard Permanent Monument
  6. S-14 Typical Method for Setting Structures
  7. S-14A Water Valve and Monument Adjustment
  8. S-15 Standard Sidewalk Barricade
  9. S-16 Standard Wood Type Guard Rail
  10. S-17 Standard Metal Beam Guard Rail
  11. S-18A Street Name Sign Installation - Public Streets
  12. S-18B Street Name Sign Installation - Private Streets
  13. S-19 Street Name Sign Standard Specifications
  14. S-23 Enforceable Compact Parking Standard
  15. S-25 Visibility and Fencing Requirements at Intersections, Driveways, and Property Lines
  16. S-26 Address Painting on Curb Face
  17. S-27 Stamped Decorative Concrete for Medians
  18. S-28 L-Intersection Knuckle
  19. S-29A Hammerhead Turnarounds - Fire Engine
  20. S-29B Hammerhead Turnarounds - Ladder Truck
  21. S-30B Retaining Wall
  22. S-30A Retaining Wall

Electrical Standard Plans

  1. Combined Electrical Standard Drawings
  2. E-1 Standard Residential Street Light
  3. E-2 Street Light General Notes
  4. E-3_Caltrans ES-6A
  5. E-4_Caltrans ES-7N
  1. E-5_Caltrans ES-13A
  2. E-6 Ornamental Street Light
  3. E-7 Secondary Box and Wood Pole Service Installations
  4. E-8 Electrical Service Specifications for Sprinkler Controllers
  5. E-9 Inductive Loops for Traffic Signals

Drainage Standard Plans

  1. Combined Drainage Standard Drawings
  2. D-2 Catch Basin Number 2, Curb Inlet
  3. D-2A Catch Basin No 2 Curb Inlet 12inch Gutter
  4. D-4A Special Aprons for D-2 and GO Catch Basins
  5. D-5A Under Sidewalk Drain - Residential
  6. D-5B Under Sidewalk Drain - Commercial
  7. D-6 Standard Rock Slope Protection Storm Drain Outfall Detail
  8. D-7 Standard Storm Drain Manhole
  1. D-8 Standard Manhole 54 inches Diameter or Larger Pipe
  2. D-9 Storm Drain Pressure Manholes - Concrete Collars
  3. D-10 Standard Concrete Lined Interceptor Ditch
  4. D-11 Drainage Flag Gate Detail
  5. D-12 Storm Drain Trench
  6. D-13 Strom Drain Inlet Trash Rack
  7. D-14 Standard Manhole Adjustment

Stormwater Standard Plans

  1. Combined Stormwater Standard Drawings
  2. SWQ-100 St Bio Plntr no park
  3. SWQ-101 St Bio Plntr w park
  4. SWQ-102 St Bio Sloped no park
  5. SWQ-103 St Bio Sloped w park
  6. SWQ-104 Parking Lot Planter
  7. SWQ-105 Parking Lot Bio Sloped
  8. SWQ-110 Curb and Gutter
  9. SWQ-111 Deep Curb
  10. SWQ-112 Thickened Edge Sidewalk
  11. SWQ-113 Flush Curb at Sidewalk
  12. SWQ-114 Parking Lot Edge Options
  13. SWQ-120 Curb Cut Inlet for Planters
  14. SWQ-121 Curb Cut Inlet for Side Slopes
  15. SWQ-122 Curb Cut Inlet w Gravel Energy Dissipation
  16. SWQ-123 Inlet w Grate
  17. SWQ-123A Inlet w Under SW Drain
  1. SWQ-130 Gravel Check Dam
  2. SWQ-131 Concrete Check Dam
  3. SWQ-140 Overflow Structure w Beehive Grate
  4. SWQ-141 Overflow Structure Collar
  5. SWQ-150 Impermeable Layer
  6. SWQ-160 Bioretention Plant Matrix KEY
  7. SWQ-161A Bioretention Plant Matrix-161A Plant Matrix
  8. SWQ-161B Bioretention Plant Matrix-161B Plant Matrix
  9. SWQ-162 Planting Inudation Zones
  10. SWQ-200 Street Bio Planter underdrain no park
  11. SWQ-201 Street Bio Planter underdrain w park
  12. SWQ-202 Street Bio Sloped underdrain no park
  13. SWQ-203 Street Bio Swale underdrain w park
  14. SWQ-204 Parking Lot Planter underdrain
  15. SWQ-205 Parking Lot Bio Sloped underdrain
  16. SWQ-206 - No Dumping Drains to River

Water Standard Plans

  1. Combined Water Standards-(PDF)
  2. W-01 - 0.75-in and 1-in Water Service-(PDF)
  3. W-02A - 1.5-in Water Service-(PDF)
  4. W-02B - 2-in Water Service-(PDF)
  5. W-03A - 3-in Water Service-(PDF)
  6. W-03B - 4-in Water Service-(PDF)
  7. W-03C - 6-in Water Service-(PDF)
  8. W-04A - 2-in Fire Service-(PDF)
  9. W-04B - 4-in and Larger Fire Services-(PDF)
  10. W-04C - 6-in and Larger Fire Service with Meter-(PDF)
  11. W-05A - DCV for .75-in and 1-in Residential Services-(PDF)
  12. W-05B - DCV for 1.5-in and 2-in Residential Services-(PDF)
  13. W-05C - DCV (Exterior) for 3-in to 8-in Residential Services-(PDF)
  14. W-05D - DCV (Interior) for 3-in to 8-in Residential Services-(PDF)
  15. W-06A - RP (Exterior) for .75-in to 2-in Commercial Services-(PDF)
  16. W-06B - RP (Interior) for .75-in to 2-in Commercial Services-(PDF)
  17. W-06C - RP (Exterior) for 3-in to 8-in Commercial Services-(PDF)
  18. W-06D - RP (Interior) for 3-in to 8-in Commercial Services-(PDF)
  19. W-07A - DCV (Exterior) for 2-in Fire Services-(PDF)
  20. W-07B - DCV (Interior) for 2-in Fire Services-(PDF)
  21. W-07C - DCV (Exterior) for 4-in to 8-in Fire Services-(PDF)
  22. W-07D - DCV (Interior) for 4-in to 8-in Fire Services-(PDF)
  23. W-08 - Fire Hydrant-(PDF)
  24. W-09 - Valves-(PDF)
  25. W-10A - 2-in Blow-Off Assembly-(PDF)
  26. W-10B - 2-in Blow Off (TOP)-(PDF)
  27. W-10C - Transmission Valve_Blowoff_Bypass-(PDF)
  28. W-10D - Water Sampling Station-(PDF)
  29. W-10E - Motorized Transmission Valve_Blowoff_Bypass-(PDF)
  30. W-11A - 1-in Air Release and Vacuum Valve-(PDF)
  31. W-11B - 2-in Air Release and Vacuum Valve-(PDF)
  32. W-12 - General Water Notes-(PDF)
  33. W-13A - Water Trench Detail-(PDF)
  34. W-13B - DOT Water Main Casing-(PDF)
  35. W-14A - Thurst Block and Wingwalls-(PDF)
  36. W-14B - Water Main Restraint Details-(PDF)
  1. W-15 - Water Main Offsets-(PDF)
  2. W-16A - Hot-Tap Detail-(PDF)
  3. W-16B - Tie-In-(PDF)
  4. W-17 - Abandonment of Existing Water Facilities-(PDF)
  5. W-18 - Water Facility Obstruction Separation Requirements-(PDF)
  6. W-19 - Future Water Main Extension Stub-(PDF)
  7. W-20A - Water Service Responsibility-(PDF)
  8. W-20B - Water Service Responsibility (Unmetered Service)-(PDF)
  9. W-21 - Installation of Fire Hydrant Pavement Markers-(PDF)
  10. W-22A - Horizontal Separation Requirements from Utilities-(PDF)
  11. W-22B - Vertical Separation Requirements from Utilities-(PDF)
  12. W-23A - Pipe Connectivity-(PDF)
  13. W-23B - Exothermic Weld-(PDF)
  14. W-23C - Bond Cables-(PDF)
  15. W-23D - Cable Splice-(PDF)
  16. W-24A - Anode Installation-(PDF)
  17. W-24B - Anode Installation (Fitting)-(PDF)
  18. W-24C - Anode Installation (Vertical Offset)-(PDF)
  19. W-24D - Anode Installation (Leak Clamp)-(PDF)
  20. W-24E - Anode Installation - Drivable Magnesium Anodes-(PDF)
  21. W-25A - Insulating Joint-(PDF)
  22. W-25B - Insulating Joint Coating-(PDF)
  23. W-26A - Test Station and Terminal Box-(PDF)
  24. W-26B - Anode Test Station (Existing Pipe)-(PDF)
  25. W-26C - Test Station Cable Identification-(PDF)
  26. W-27A - Test Station (Corrosion)-(PDF)
  27. W-27B - Test Station (Foreign Pipeline)-(PDF)
  28. W-28A - Anode Test Station (DIP)-(PDF)
  29. W-28B - Anode Test Station (Fire Hydrant)-(PDF)
  30. W-28C - Anode Test Station (Valve)-(PDF)
  31. W-28D - Anode Test Station (Cross)-(PDF)
  32. W-28E - Anode Test Station (Casing)-(PDF)
  33. W-29A - Wenner Four Pin Resistivity Test-(PDF)
  34. W-29B - Barnes Layer Resistivity-(PDF)
  35. W-29C - Soil Box Resistivity Test-(PDF)
  36. Water Distribution Design Provisions-(PDF)

Parks and Landscaping Plans

  1. Combined Parks and Landscaping Plans
  2. PL-1 Standard Above Ground Backflow Device
  3. PL-1A Standard Above Ground Backflow Device
  4. PL-2 Remote Control Valve
  5. PL-3 Central Control Assembly
  6. PL-3A Non-Central Irrigation Controller Cabinent
  7. PL-3B Battery Operated Irrigation Controller Cabinent
  8. PL-4 Quick Coupling Valve
  9. PL-5 Bubbler Installation
  1. PL-5A Tree Bubbler Installation
  2. PL-6 Gate Valve
  3. PL-7 Pop-Up Sprinkler Installation
  4. PL-8 Turf Head Installation
  5. PL-9 Turf Head Installation
  6. PL-10 Paved Surface Shared Trail
  7. PL-11 Decomposed Granite Surface Shared Trail
  8. PL-12 Decomposed Granite Surface Foot Trail
  9. PL-13 Bollard with Wood Surround

Street Trees Standard Plans

  1. Combined Street Trees Standard Drawings
  2. T-1 Street Tree Planting Specifications for 15 gallon Trees
  3. T-2 Street Tree Planting Specifications General Notes
  1. T-3 Street Tree Planting Specifications for 15 Gallon Trees - Single Metal Stake
  2. T4 - City Sidewalk Tree Boxes
  3. T-5 Standard Root Guard Barrier Specifications

Fire Standard Plans

  1. Combined Fire Standard Drawings
  2. FP-2B Fire Lane Sign and Curb Marking Standard
  1. FP-2A Fire Lane Sign Standard

Recycling and Solid Waste Design Standards

  1. Solid Waste and Recycling Enclosure Supplemental Attachment
  2. Solid Waste and Recycling Enclosure Standards
  1. Solid Waste, Recyclable Materials & Compostables Enclosure Standards