1. low impact development
strategies and techniques
jennifer j. bitting, pe the low impact development center, inc. june 2008

2. outline • hydrologic analysis
• low impact development (lid) site
planning strategies
• lid best management practice
selection

3. hydrologic
analysis
• lid hydrologic considerations
• lid hydrologic evaluation steps

4. hydrologic considerations
Post
development
Q Pre-
development
• runoff volume control
• peak runoff rate control T
• flow frequency/duration control Runoff Hydrograph
• water quality control