Stormwater is runoff generated when rain (or the occasional snowmelt) flows over the ground.

Dunwoody Nature Center Pond Wall

Impervious surfaces like driveways, sidewalks, and streets prevent stormwater runoff from naturally soaking into the ground.

With roughly 50 inches of rain each year, the City proactively manages our stormwater through a series of 10,289 structures and 8,377 conveyances (pipes) that convey the stormwater into our streams, creeks, and ponds.

To get a better understanding of what the Stormwater Department oversees and manages, please read the Dunwoody Stormwater Extent of Service document.

Check out what we've done so far! 

Improving Water Quality

Stormwater is also very important as it relates to the quality of the water in our natural streams. As the stormwater flows over the streets, sidewalks, driveways, and parking lots it picks up and carries pollutants (like oil, lawn fertilizers, and litter) to our streams, creeks, and ponds. The City needs your help in order to improve our water quality and protect our natural water resources.

Be Part of the Solution to Stormwater Pollution

You can help improve Dunwoody’s water quality and protect our water resources in many ways:

Riprap Program

The City of Dunwoody supports your decision to reduce erosion, and would like to assist by providing rock.  In order to protect our environment and ensure proper use of municipal assets, the Public Works and Community Development departments require a signed Rock Request Application and Environmental Affidavit.  The placement of rock within streams is a regulated process and will require permitting in many circumstances.  For more information, please contact Public Works at 678-382-6850.

Dunwoody's Local Streams


The City of Dunwoody is located in the Upper Chattahoochee Watershed and has 9 individual drainage basins. Click here to make your own maps of Dunwoody.

The City of Dunwoody has 9 individual drainage basins.

Educational Resources

Stormwater Activity

The City of Dunwoody's Deputy Director of Stormwater, David Elliott, PE, recently wrote an article which was published by the The Georgia Association of Water Professionals in the group's quarterly news journal, The Operator.

The article offers an overview of providing accurate and fair determinations of stream classifications, stream buffers, and stream outfalls -- especially within local jurisdictions such as Dunwoody.

To read the article (located on page 60 of the fall issue), please visit the magazine's official website.