Jason R. Vogel, Ph.D., P.E.Stormwater Specialist

Biosystem and Agricultural EngineeringOklahoma State University

Low Impact Development (LID):

A Sustainable Solution for Oklahoma Stormwater

Mimics a site's predevelopment hydrology through design techniques that infiltrate, filter, store, evaporate, and detain runoff close to its source.

Emphasizes cost-effective strategies at the lot level

An approach to land development that uses various land planning, design and construction practices.

What is Low Impact Development?

These include basic design features such as:reducing the use of pipes, ponds, curbs and

gutters; maintaining recharge areas, buffer zones, and drainage courses;

using infiltration swales, grading strategies, and open drainage systems;

reducing impervious surfaces and disconnecting those that must be used;

and conserving open space.

Bioretention/Rain GardensRainfall harvestingPermeable PavementBioswalesGreen roofsStormwater wetlandsTree box planters

What are common on-site LID designs?

Almost all components of the urban, suburban, and residential environment have the potential to incorporate LID. open space, rooftops, streetscapes, parking lots, sidewalks, and medians.

LID is a versatile approach that can be applied equally well to new development, urban retrofits, and redevelopment/revitalization projects.

Where can LID be implemented?

Rain gardens and Bioretention cells

Examples of LID

Rain Gardens and Bioretention Cells

Come in many forms …

NCSU BAE

NCSU BAE

Bioswales

Examples of LID

Rainwater harvesting

Examples of LID

Permeable pavement

Examples of LID

Stormwater wetland

Examples of LID

Green roof

Some examples of LID

From Randall ArendtFrom Randall Arendt• same number of housing units

• 10-50% less impervious surface

• up to 50% open space

• water resources protected

Conservation Subdivisions

Some examples of LID

Thanks!!!