LID History, Implementation, Operations and Maintenance
Low Impact / Green Infrastructure, Historical and Current Implementation for Project Site and Watershed Planning
Sunday, February 23, 2020
1:00 PM – 5:00 PM
The International Erosion Control Association has met the standards and requirements of the Registered Continuing Education Program. Credit earned on completion of this program will be reported to RCEP.
William Neal Reynolds Professor & Extension Specialist Biological & Agricultural Engineering North Carolina State University
Disclosure: Disclosure information not submitted.
Low impact development (LID) is defined by the EPA as “systems and practices that use or mimic natural processes that result in the infiltration, evapo-transpiration or use of storm water in order to protect water quality and associated aquatic habitat.” The low impact development process begins with diligent planning. The goal is to match predevelopment hydrology through green infrastructure techniques that incorporate infiltration and evapo-transpiration processes to the highest extent practical. With tree canopy and vegetation loss being the most salient change in the developed landscape, it is infiltration that must be the first and foremost goal of project planning. Within this goal, the ability to maintain the function of these systems in perpetuity is prerequisite. Maintaining long term function of these green infrastructure techniques is made simpler, more environmentally rewarding and economically viable by understanding the science, design and functional limitations of each technique relative to the physical limitations of the site. This workshop investigates LID/Green infrastructure, the history and the research with example case studies of practical planning, design and implementation for long-term function. Examples of maintenance success, blunders and their causes will be discussed.
The attendee will learn the basis of LID including common practices that detain, retain and infiltrate storm water. Applications sucha as bioretention, permeable pavement and others with research that supports it.
The attendee will learn core planning and design processes behind stormwater infiltration and retention BMP's including permeable pavement. The attendee will learn where to look for opportunities to retrofit an urban watershed with permeable pavements while understanding the hydrologic impact and potential that infiltration has on a project site within an urban watershed.
The attendee will become familiar with the construction process and post construction maintenance of stormwater infiltration BMP’s along with problem areas of long term maintenance.