Drawings

Whilst we consider preparing our own set of STEP LID drawings, we are providing a quick reference list to drawing files from others (including proprietary systems).

If you want help in finding example details for an LID design, please email STEP or use the comment box below.

You know that typical drawings are no substitute for properly configured design!

Ontario Municipal

• The City of Toronto Green Streets program included production of many drawn'typicals'. See example of curb extensions to the right.
• The City of Kitchener has standard details for pervious concrete pavement, precast permeable interlocking pavement and permeable pipe exfiltration systems.
• The City of Barrie has a draft standard detail for an exfiltration trench on page 125 of the linked document. Note that the 'within-WHPA' detail is not supported by STEP.

Elsewhere

• Oregon State University LID typicals by GreenGirl
• Plan drawings by Low Impact Development Center, Inc.
• Bioretention detail by Philly Water
• Permeable paving by Philly Water
• Pipe-in-stone infiltration by Philly Water

Proprietary

In our effort to make this guide as functional as possible, we have decided to include proprietary systems and links to manufacturers websites.
Inclusion of such links does not constitute endorsement by the Sustainable Technologies Evaluation Program.
Lists are ordered alphabetically; link updates are welcomed using the form below.

• ADS pipe
• Soil cells by Silvacell
• pretreatment by Hydro International

Sustainable Technologies Evaluation Program

Low Impact Development. A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting.

Low impact development is a stormwater management and land development strategy applied at the parcel and subdivision scale that emphasizes conservation and use of on-site natural features integrated with engineered, small scale hydrologic controls to more closely mimic pre-development hydrologic functions.

A stormwater management strategy that seeks to mitigate the impacts of increased urban runoff and stormwater pollution by managing it as close to its source as possible. It comprises a set of site design approaches and small scale stormwater management practices that promote the use of natural systems for infiltration and evapotranspiration, and rainwater harvesting.