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Stormwater Design Manual

Updates to help with construction process and meeting current development requirements


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Current Design Manuals New Design Manual Previous Drafts

Current Design Manuals

There are two manuals currently in effect in the City of Raleigh:

  1. Stormwater Design Manual (2002)
  2. Guidelines for Land Disturbing Activity (2013)

These manuals will remain in effect until a new version of the manual is adopted, with the following exceptions:

  • The above manuals do not contain information and guidance regarding the new Neuse Nutrient Rules, which become effective on May 1, 2023.
  • The new Neuse Rules also require use of the State’s Minimum Design Criteria (MDCs) for stormwater control measure design. Therefore, the NCDEQ Stormwater Design Manual replaces Chapter 3.2 of the City’s 2002 Stormwater Design Manual.

New Design Manual

The Stormwater Design Manual Draft Version 5 and associated UDO Text Changes are available for public comment. Select the links below to read more. Share your thoughts about the updates!

Approval Process and Timeline

The Stormwater Design Manual is incorporated into the City’s Unified Development Ordinance (UDO) by reference; therefore, changes must be approved by the City Council. The Stormwater Design Manual was be presented to the Stormwater Management Advisory Commission (SMAC), most recently in January 2024.  Before reaching City Council, the Manual will be discussed by the and the Planning Commission and their Text Change Committee.

DATE  ACTIVITY 
December 2023 and January 2024  Presented manual to SMAC 
April 17, 2024  Present manual to Planning Commission Text Change Committee 
Late Spring 2024  Present manual to City Council 
After City Council Approval  Training for Designers 
60 days after City Council Approval  Manual Effective 

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