Low Impact Development
Low Impact Development (LID) is an approach to stormwater management and site development that minimizes the amount of stormwater carried in piped stormwater systems and reduces incidents of urban flooding. LID uses a variety of small scale site features like raingardens and pervious paving that allow rainwater to soak into the ground. The water travels slowly through the soil and many pollutants are filtered by the plants and soil microbes before flowing into the waters of Puget Sound.
You may have noticed these watering cans outside of Cortland Puget Sound Rope’s warehouse on Railroad Avenue. The Port partnered with Skagit Marine Resources Committee to incorporate LID features at this port-owned building. Water from the roof of the warehouse is channeled through these oversized watering cans that gently and evenly distribute water to the rain garden plantings.
The main Port office parking lot was also constructed with pervious paving. Pervious concrete pavers are designed to slow the volume and rate of stormwater runoff, allow groundwater recharge and help filter pollutants. Stormwater flows through the gaps between the pavers into the gravel subbase, where it is stored and slowly infiltrates into the ground. Pervious paving parking lots can also be found at the Port’s Seafarer’s Memorial Park.
Here are some ways to minimize stormwater pollution at home:
Stormwater Pollution Prevention Brochure
Stormwater Management Program for 2017 Document
Stormwater Management Program Annual Report for 2017