Chagrin River Watershed LID Demonstration Projects

Stormwater management at a new development site

Cawrse and Associates, Inc. Stormwater Management System, South Russell Village

Project Goal
Mitigate stormwater runoff from a new private office building and parking area using a combination of low impact development best management practices (permeable pavers, rain garden and vegetated swale) and a traditional stormwater pond.

Treatment Train System
The treatment system is composed of a series of practices working together to reduce the amount of water runoff and increase the quality of that runoff.

• Permeable Pavers allow stormwater from the parking area to infiltrate into the ground and reduce runoff. Any runoff that does not infiltrate through the ground is carried to an underdrain beneath the pavers and drains to the vegetated swale via an outlet on the east side of the parking area.
  
• The Rain Garden receives runoff from half of the roof and reduces runoff through infiltration and uptake by plants. A perforated raised pipe located in the garden acts as a small catch basin by carrying any excess runoff to the stormwater pond during larger storm events.
  
• The Vegetated Swale receives runoff fromthe parking area underdrain and a portion of the roof. Plants slow the water moving through the swale and allow for uptake by plants and infiltration back into the soil. Flow from the swale drains into the stormwater pond.
• 
  The Stormwater Pond is the final destination of runoff from the vegetated swale and rain garden. As a wet extended detention pond, it reduces runoff and increases water quality by removing pollutants by settling out sediment, chemical interactions and biological uptake by plants, algae and bacteria.

Cawrse and Associates, Inc. Innovative Stormwater Management Project, South Russell, Ohio Video
(LESS Productions)

Cawrse and Associates, Inc. Stormwater Monitoring Project Video
(LESS Productions)

Fact Sheet - Innovative Stormwater Management in South Russell (pdf 540kb)

For more information on this project please contact CRWP or (440) 975-3870.