Stormwater is heavy rainfall that runs off from surfaces and does not soak into the ground
Stream flows and wetlands are fed largely by shallow groundwater, receiving surface runoff only during large storms.
Traditionally, stormwater was managed through the construction of pipes and channels to carry away rainfall as quickly as possible to protect homes and the public.
The traditional approach, combined with the removal of natural forest cover, ponds, and wetlands has led to increased volumes of rapid runoff.
Rapid runoff can increase the risk of flooding, erosion, and degradation of stream habitat.
What is a Stormwater Management Plan?
Stormwater management aims to control surface runoff by using various strategies to manage water quantity and improve water quality caused by surface pollutants. A stormwater management plan considers a range of approaches to help protect property and the public, but to also reduce channel erosion and improve the quality of stormwater runoff.
What are Ways to Manage Stormwater?
Wetland, ponds, or underground reservoirs that store and delay runoff
Green infrastructure such as porous paving, raingardens, and landscaped features that capture stormwater
Ditches, culverts, pipes, and repaired stream corridors that safely convey stormwater