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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.
STANDARD SPECIFICATIONS
The 2022 Standard Specifications are organized by the following sections: 1. General Provisions, 2. Drainage Standards, 3. Street Standards, 4. Landscaping Standards, 5. Water Distribution System Provisions, 6. Signals, Lighting, and Electrical Systems, and 7. Solid Waste, Recyclable Materials & Compostable. Sections 6 and 7 are new sections in the 2022 Standard Specifications update. The Revised Standard Specification List will be updated with revisions made after January 2022 publishing date.
STANDARD PLANS
The 2022 Standard Plans have been reorganized to follow the chronology of the Standard Specifications as follow: Drainage, Stormwater Quality, Streets, Fire, Parks and Landscaping, Street Trees, Water, Electrical, and Solid Waste and Recyclable. Standard Plans that have been retired, reserved (in review for future publication), and are new as part of the 2022 update are listed in the Revised Standard Plans List. The list includes Standard Plan revisions made after January 2022 publishing date.
Drainage
- Combined Drainage Standard Drawings
- D-2 Catch Basin Number 2, Curb Inlet
- D-2A Catch Basin No 2 Curb Inlet 12inch Gutter
- D-4A Special Aprons for D-2 and GO Catch Basins
- D-5A Under Sidewalk Drain - Residential
- D-5B Under Sidewalk Drain - Commercial (10-2022)
- D-6 Standard Rock Slope Protection Storm Drain Outfall Detail (Reserved)
- D-7 Standard Storm Drain Manhole
- D-8 Standard Manhole 54 inches Diameter or Larger Pipe
- D-9 Storm Drain Pressure Manholes - Concrete Collars
- D-10 Standard Concrete Lined Interceptor Ditch (Reserved)
- D-11 Drainage Flag Gate Detail (Reserved)
- D-12 Storm Drain Trench (10-2022)
- D-13 Storm Drain Inlet Trash Rack
- D-14 Standard Manhole Adjustment (5-2022)
Stormwater Quality
- Combined Stormwater Standard Drawings
- SWQ-100 St Bio Plntr no park
- SWQ-101 St Bio Plntr w park
- SWQ-102 St Bio Sloped no park
- SWQ-103 St Bio Sloped w park
- SWQ-104 Parking Lot Planter
- SWQ-206 - No Dumping Drains to River
- SWQ-105 Parking Lot Bio Sloped
- SWQ-110 Curb and Gutter
- SWQ-114 Parking Lot Edge Options
- SWQ-111 Deep Curb
- SWQ-112 Thickened Edge Sidewalk
- SWQ-113 Flush Curb at Sidewalk
- SWQ-120 Curb Cut Inlet for Planters
- SWQ-121 Curb Cut Inlet for Side Slopes
- SWQ-122 Curb Cut Inlet w Gravel Energy Dissipation
- SWQ-123 Inlet w Grate
- SWQ-123A Inlet w Under SW Drain
- SWQ-130 Gravel Check Dam
- SWQ-131 Concrete Check Dam
- SWQ-140 Overflow Structure w Beehive Grate
- SWQ-141 Overflow Structure Collar
- SWQ-150 Impermeable Layer
- SWQ-160 Bioretention Plant Matrix KEY
- SWQ-161A Bioretention Plant Matrix-161A Plant Matrix
- SWQ-161B Bioretention Plant Matrix-161B Plant Matrix
- SWQ-162 Planting Inudation Zones
- SWQ-200 Street Bio Planter underdrain no park
- SWQ-201 Street Bio Planter underdrain w park
- SWQ-202 Street Bio Sloped underdrain no park
- SWQ-203 Street Bio Swale underdrain w park
- SWQ-204 Parking Lot Planter underdrain
- SWQ-205 Parking Lot Bio Sloped underdrain
Street
- Combined Streets Standard Drawings
- S-1 Standard Curb and Gutter (10-2022)
- S-1A Standard Curb and Gutter 12" Gutter (10-2022)
- S-2 A1-6 and B-3 Curbs
- S-3 Curb Transitions
- S-4 Standard Details - Sidewalk Sections
- S-4A Fire Hydrant Location - For Curb Adjacent Sidewalk
- S-4B Concrete Connections
- S-5 Standard Driveway Approach (10-2022)
- S-5A Standard Driveway Approach - Short Ramp (10-2022)
- S-5B Standard Driveway Approach - With Curb Ramps
- S-6A Street Standard - Major Arterials (6-2023)
- S-6B Street Standard - Minor Arterials (6-2023)
- S-6C Street Standard - Collectors (6-2023)
- S-6D Street Standard - Local Streets
- S-6E Street Standard - Hillside Local Street
- S-6F Street Standard - Rural Local Street
- S-7A Typical Residential Cul-de-Sac
- S-7B Typical Commercial Industrial Cul-De-Sac
- S-7C Partial Residential Cul-De-Sac with Abutting Future Development - Fire Engine
- S-7D Partial Residential Cul-De-Sac with Abutting Future Development - Ladder Truck
- S-8 Standard Curb Return - Curb, Gutter and Sidewalk
- S-9 Caltrans Standard Plan A88A Curb Ramp Details
- S-10 Pavement Section Edge Protection
- S-11A Standard Cross Gutter
- S-11B Standard Street Profile at Cross Gutter
- S-12 Standard Backfill Detail
- S-13 Standard Permanent Monument
- S-14A Monument Adjustment
- S-15 Standard Sidewalk Barricade
- S-16 Std. Wood Type Guard Rail & Street Barricade
- S-18A Street Name Sign Installation - Public Streets
- S-18B Street Name Sign Installation - Private Streets
- S-19 Standard Street Name Sign (Reserved)
- S-21A Std. Off Street Parking Requirements
- S-21B Std. Off Street Parking Requirements
- S-22 ADA Off-Street Parking Requirements
- S-23 Enforceable Compact Parking Standard
- S-24 Parking Std. for Structure Parking
- S-25 Vision Triangle and Fencing Requirements
- S-26 Address Painting on Curb Face
- S-27 Stamped Decorative Concrete for Medians
- S-28 "L" Intersection Knuckle
- S-29A Hammerhead Turnarounds - Fire Engine
- S-29B Hammerhead Turnarounds - Ladder Truck
- S-30A Retaining Wall (Reserved)
- S-30B Retaining Wall (Reserved)
- S-31 Median Nose Standard
- S-32 Median Signs
- S-33 Typical Stop Striping Detail
Fire
- Combined Fire Standard Drawings
- FP-2 Fire Lane Sign & Placement
- FP-3 Fire Lane Curb Painting
- FP-4 Method of Measuring Cul-De-Sac Length
- FP-5 Route of Travel Around Buildings
- FP-6 Multiple Points of Access
- FP-7 Sides of Building Access
- FP-8 Fire Sprinkler Riser Access in Multi-Family/Commercial Buildings
Parks and Landscaping
- Combined Parks and Landscaping Plans
- PL-1 Standard Above Ground Backflow Device
- PL-1A Standard Above Ground Backflow Device
- PL-2 Remote Control Valve
- PL-3 Central Control Assembly
- PL-3A Non-Central Irrigation Controller Cabinent
- PL-3B Battery Operated Irrigation Controller Cabinent
- PL-4 Quick Coupling Valve
- PL-5 Bubbler Installation
- PL-5A Tree Bubbler Installation
- PL-6 Gate Valve
- PL-7 1/2" Pop-Up Sprinkler Installation
- PL-8 3/4" Turf Head Installation
- PL-9 1" Turf Head Installation
- PL-10 Paved Surface Shared Trail
- PL-11 Decomposed Granite Surface Shared Trail
- PL-12 Decomposed Granite Surface Foot Trail
- PL-13 Metal (Black) Bollard with Wood Surround
Street Trees
Water
- Combined Water Standards
- W-01 - 0.75-in and 1-in Water Service
- W-02A - 1.5-in Water Service
- W-02B - 2-in Water Service
- W-03A - 3-in Water Service
- W-03B - 4-in Water Service
- W-03C - 6-in Water Service
- W-04A - 2-in Fire Service
- W-04B - 4-in and Larger Fire Services
- W-04C - 6-in and Larger Fire Service with Meter
- W-05A - DCV for .75-in and 1-in Residential Services
- W-06A - RP (Exterior) for .75-in to 2-in Commercial Services
- W-06B - RP (Interior) for .75-in to 2-in Commercial Services
- W-06C - RP (Exterior) for 3-in to 8-in Commercial Services
- W-06D - RP (Interior) for 3-in to 8-in Commercial Services
- W-07A - DCV (Exterior) for 2-in Fire Services
- W-07B - DCV (Interior) for 2-in Fire Services
- W-07C - DCV (Exterior) for 4-in to 8-in Fire Services
- W-07D - DCV (Interior) for 4-in to 8-in Fire Services
- W-08 - Fire Hydrant
- W-09 - Valves
- W-10A - 2-in Blow-Off Assembly
- W-10B - 2-in Blow Off (TOP)
- W-10C - Transmission Valve_Blowoff_Bypass
- W-10D - Water Sampling Station
- W-10E - Motorized Transmission Valve_Blowoff_Bypass
- W-11A - 1-in Air Release and Vacuum Valve
- W-11B - 2-in Air Release and Vacuum Valve
- W-12 - General Water Notes
- W-13A - Water Trench Detail
- W-13B - DOT Water Main Casing
- W-14A - Thrust Block and Wingwalls
- W-14B - Water Main Restraint Details
- W-14C - Typical System Restraint Lengths
- W-15 - Water Main Offsets
- W-16A - Hot-Tap Detail
- W-16B - Tie-In
- W-17 - Abandonment of Existing Water Facilities
- W-18 - Water Facility Obstruction Separation Requirements
- W-19 - Future Water Main Extension Stub
- W-20A - Water Service Responsibility
- W-20B - Water Service Responsibility (Unmetered Service)
- W-21 - Installation of Fire Hydrant Pavement Markers
- W-22A - Horizontal Separation Requirements from Utilities
- W-22B - Vertical Separation Requirements from Utilities
- W-23A - Pipe Connectivity
- W-23B - Exothermic Weld
- W-23C - Bond Cables
- W-23D - Cable Splice
- W-24A - Anode Installation
- W-24B - Anode Installation (Fitting)
- W-24C - Anode Installation (Vertical Offset)
- W-24D - Anode Installation (Leak Clamp)
- W-24E - Anode Installation - Drivable Magnesium Anodes
- W-25A - Insulating Joint
- W-25B - Insulating Joint Coating
- W-26A - Test Station and Terminal Box
- W-26B - Anode Test Station (Existing Pipe)
- W-26C - Test Station Cable Identification
- W-27A - Test Station (Corrosion)
- W-27B - Test Station (Foreign Pipeline)
- W-28A - Anode Test Station (DIP)
- W-28B - Anode Test Station (Fire Hydrant)
- W-28C - Anode Test Station (Valve)
- W-28D - Anode Test Station (Cross)
- W-28E - Anode Test Station (Casing)
Electrical
- E-8 Electrical Service Specifications for Sprinkler Controllers
- E-9 Inductive Loops for Traffic Signals
- E-10 Rapid Flashing Beacon System & Round Pole Installation
- E-10A Rapid Flashing Beacon System & Square Pole Installation
- E-11 Internally Illuminated Street Name Signs
- E-12 Electrical Cabinet Foundation Base
- E-13 "P" Cabinet Foundation Base
Solid Waste & Recycling
- Enclosure Standards 01_2022 (PDF)
- Combined Solid Waste & Recycling Standard Drawings
- SWR-1 Typical Enclosure Facility
- SWR-1A Cart Enclosure Layout (Exhibit A)
- SWR-1B Small Bin Enclosure Layout (Exhibit B)
- SWR-1C Medium Bin Enclosure Layout (Exhibit B)
- SWR-1D Large Bin Enclosure Layout (Exhibit D)
- SWR-1E Extra Small Bin Enclosure Layout (Exhibit E)
- SWR-1F Small Food Enclosure Layout (Exhibit F)
- SWR-1G Medium Food Enclosure Layout (Exhibit G)
- SWR-1H Large Food Enclosure Layout (Exhibit H)
- SWR-1I Extra Small Food/Oil Enclosure Layout (Exhibit I)
- SWR-1J Small Food/Oil Enclosure Layout (Exhibit J)
- SWR-1K Medium Food/Oil Enclosure Layout (Exhibit K)
- SWR-1L Large Food/Oil Enclosure Layout (Exhibit L)
- SWR-1M Bin Placement without Roof (Exhibit M)
- SWR-1N Bin Placement With Roof (Exhibit N)
- SWR-2 Enclosure Signage
- SWR-3 Truck Access - Bin Collection
- SWR-4 Collection Clearances (Roll-Off Bins & Compactor)
- SWR-5 Cart Service Clearances