Engineering Standards

Following are the standard plans and specifications for construction projects in the City of Corona.

Design Policy

November 2012

Corona Greenbook Waterworks Specifications

August 2018

Complete Engineering Standards

updated 2020

Standard Plans & Special Provisions

Benchmarks

USC List of Approved Backflow Prevention Assemblies

Computer-Aided Drafting (CAD) Standards‍

Title Sheet
Plan Sheet
Sample Plan

You can also download the engineering standards and appendices individually!

• 301 Sewer Lateral on New Sewer

• 302 Standard Manhole

• 303 Drop Manhole

• 304 Sewer Lateral Connection on Existing Sewer

• 307 Sewer Lateral Terminal Cleanout

• 308 Sewer Pipe Bedding and Trench Details

• 309 Steel Casing for Gravity or Pressure Flow Sewer Pipe

• 310 Concrete Slope Anchors

• 401 Concrete Thrust Block Details

• 402 Steel Casing for Pressure Flow Pipe

• 404 Potable Water Sample Station

• 405 Guard Post Details

• 406 Potable and Reclaimed Water Pipe Bedding and Trench Details

• 407 Potable Water Line Crossing Under Existing Utility

• 407R Reclaimed Water Line Crossing Under Existing Utility

• 408 1” Potable Water Service Connection Detail with Fire Sprinkler Service

• 409 1-1/2” and 2” Potable Water Service Connection Detail with Fire Sprinkler Service

• 410 Pressure Regulating Station

• 411R Reclaimed Water Irrigation Sign

• 412 6” Potable Water Fire Hydrant Installation

• ‍412R 6” Reclaimed Water Fire Hydrant Installation

• 413 1” or 2” Potable Water Combination Air and Vacuum Release

• 413R 1” or 2” Reclaimed Water Combination Air and Vacuum Release

• 414 1” Potable Water Service Connection Detail without Fire Sprinkler Service

• 414R 1” Reclaimed Water Service Connection Detail

• 415 1-1/2” and 2” Potable Water Service Connection Detail without Fire Sprinkler Service

• 415R 1-1/2” and 2” Reclaimed Water Service Connection Detail

• 416 6” Potable Water Fire Hydrant Blow-Off Assembly

• 416R 6” Reclaimed Water Fire Hydrant Blow-Off Assembly

• 417 Double Check Detector Assembly

• 418 Adjustable Pipe Support

• 419 Pipeline Separation Requirements

• 420 Resilient Wedge Gate Valve Installation

• 421 Cut-in Tee

• 422 Valve Box and Valve Stem Extension

• 424 Meter Room Potable Water Service Connection Detail

• 425 Courtyard Potable Water Service Connection Detail

• 426 Potable Water Compound Flow Meter

• 426R Reclaimed Water Compound Flow Meter

• 428 Reduced Pressure Principle Backflow Assembly

• 450 Two Wire Test Station

• 452 Casing Test Station

• 453 Insulator Test Station

• 454 Test Station Box and Wiring

• 455 Test Station Locations in Street Right-of-Way

• 456 Alumino-Thermic (CAD) Welding and Pin Brazing

• 457 Bonding for Pipe Joints and Fittings

• 458 Insulating Joint

• Appendix A Approved List of Materials for Water Facilities

• Complete Engineering Standards

• Corona Greenbook Waterworks Specifications

• Design Policy

• Table of Contents