Beginning March 1, 2008 all stormwater best management practices shall be designed in accordance with the latest edition of the NC DWQ Stormwater Best Practices Manual and with the Guilford County Addenda which together shall be known as the Water Quality Protection Manual.

Guilford County Addenda to DWQ Manual

To view the NC Division of Water Quality Stormwater BMP Manual go here.

Storm Sewer Design Manual:
Cover & Table of Contents         Storm Sewer Design Manual – First Edition

Chapter 1                                Storm Water Collection Systems

Chapter 2                                The Rational Method

Chapter 3                                SCS Peak Discharge Method

Chapter 4                                Pipe Sizing

Chapter 5                                Culvert Design

Chapter 6                                Open Channel Design

Chapter 7                                Development Ordinance

Chapter 8                                Design Requirements