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NCSU-CES

 Flooding

flooding1a.jpgMany communities in North Carolina are concerned not only with the quality of stormwater, but also with its QUANTITY.

Before development, the majority of rainwater soaks into the ground where it is slowly transported to local streams via shallow groundwater. However, after land is developed, roads, driveways, and walkways prevent rainwater from soaking into the ground. Instead, rainwater is collected in ditches and pipes and rapidly carried to streams. During a large storm, all this stormwater can overflow the stream and cause major problems for property owners adjacent to streams.flooding1b.jpg

You should consider choosing flooding as an Action Issue for your jurisdiction if you have observed it to be a problem and you think your citizens would be receptive to taking the measures required to control it, such as diverting rooftop and driveway runoff when possible, minimizing paved areas on their property, using rain barrels and constructing rain gardens.

Target Audiences

  • Mainly homeowners, but you will need to look for homeowners that already have a special interest and enthusiasm for this issue.
  • flooding1c.jpgGarden clubs, neighborhood associations.
  • Scouting troops
  • Developers, designers and contractors involved in creating new developments in your jurisdiction.

Approaches

If you want to address flooding in your jurisdiction, you need to take different approaches for new versus existing development. On new development sites, the focus will be on keeping paved areas small and narrow and diverting rooftop runoff to grassy or natural areas so that it will have a chance to soak into the ground.

On existing development, you will be looking for target audiences that have enough interest and enthusiasm to establish new measures to control flooding like installing rain barrels, planting rain gardens and diverting rooftop runoff. These audiences may include a garden club, neighborhood association or scouting troop.

Existing Educational Materials

Do not use any materials on this website without first contacting the sponsoring organization and obtaining their permission.

Print Materials: Brochures

Print Materials: Detailed Technical Information

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