Low Impact Development Applications for Water Resource Management

Instructors

Neil Wenstein, P.E., R.L.A., AICP, M.ASCE
Mr. Weinstein is the Executive Director of the LID Center, a non-profit water resources research organization in Beltsville, Maryland. He is one of the founding members of the Center. Mr. Weinstein has over 20 years of water resources research and design experience. He has been involved in the development of national policy manuals and regulations for stormwater management and resource protection. Design experience includes retrofits of facilities, NPDES compliance, pollution prevention, dredging, and wetlands mitigation. Research activities include development of water resources models and monitoring programs. He has masters degrees in Environmental Engineering and Environmental Design. Mr. Weinstein is on the Urban Water Resources Research Council of ASCE. He is a recognized expert on planning and environmental issues and is a member of AICP.

Larry Coffman
Mr. Coffmanis a former Associate Director of the Programs and Planning Division of the Prince George’s County, Maryland Department of Environmental Resources where he was responsible for the leadership and management of one of the nation’s largest and most progressive stormwater management programs. He is one of the key developers of LID technology and Bioretention. Mr. Coffman has written and directed the key research and program activities for LID. This includes incorporation of LID into local programs, monitoring and modeling, and design and implementation strategies. Mr. Coffman has a degree in Biology and has over 25 years in stormwater management and aquatic resource protection. He is a member of the ASCE Urban Water Resources Research Council and co-chairs the subcommittee on LID.
 

Course Description

Low Impact Development (LID) is an innovative approach to stormwater management that is being implemented by federal agencies, state, and local governments for aquatic resource protection and regulatory compliance. LID is a site level stormwater management design approach with an objective of maintaining the hydrologic cycle or meeting targeted watershed objectives. This is accomplished by a combination of planning and design strategies that use conservation approaches and techniques to reduce site development
impacts in combination with Integrated Management Practices (IMPs). IMPs are small scale stormwater management devices that are distributed throughout the site, on buildings, and throughout the infrastructure to meet the control objectives. This includes filtering of pollutants, volume, and timing control. Common IMPs include bioretention, which is the use of the plant soil complex for stormwater management, roof gardens, permeable pavers, and amended soils.

The use of LID is being explored by transportation agencies, the Department of Defense, and many large institutions because of the potential life cycle cost savings,superior environmental protection, and ability to leverage funds from other programs, such as maintenance budgets, to construct IMPs. This approach is useful for urban redevelopment, and is being used in Combined Sewer Overflow (CSO) control programs in large cities. It is also being used in rural and smaller communities for Phase II NPDES permits because of the flexibility in construction and the ability to phase the implementation of the program.

During the last several years seminars on LID have been conducted around the U.S. that have provided a general overview of the strategies and techniques. This two-day seminar will focus on the engineering and technical issues associated with the planning, engineering, construction, and determining the effectiveness of LID. It will give the practicing engineer a foundation to begin to design LID projects and incorporate LID into local stormwater programs.

Seminar Benefits

• Gain an understanding of the general concepts and benefits of LID, including insight into the economic and environmental benefits of the approach
• Find out how communities are successfully implementing LID
• Gain additional tools to address WWF flow problems
• Learn alternative sustainable approaches to conventional end
  of pipe controls
• Obtain new perspectives on stormwater management and design
• Receive information on state-of-the art research in modeling, monitoring, and management approaches
• Gain exposure to new LID modeling techniques and design manuals

Who Should Attend

Site Designers, Hydrologists, Modelers, Road Designers, Program Managers, Landscape Architects, Architects, Watershed Planners, and Environmental Groups will benefit from this seminar.

Summary Outline

• Introduction to LID
  • Water Resource Issues and Objectives
  • Design and Planning Goals
• LID Background
  • Bioretention
  • Decentralized Controls
• LID Hydrology and Hydraulics
  • Hydrologic Controls
  • Modeling and Monitoring
• LID IMPs
  • IMP Use
  • Selected IMPs
• Design Case Studies
  • Residential Development
  • Urban Retrofit
• Institutional Issues
  • Local Codes
  • Design and Review