Storm Water Management – Design, Inspection and Operation, Maintenance of Storm Water Control Facilities

Introduction:

The long-term, cost-effective operation of a stormwater management facility hinges upon several key factors: appropriate design, efficient inspection during construction, and the implementation of well-organized operation and maintenance practices. This workshop aims to cover all of these aspects, guiding designers in producing cost-effective designs with low maintenance costs and trouble-free long-term operation. Likewise, it will assist those involved in the operation and maintenance program in understanding design principles and ensuring that Best Management Practice (BMP) facilities operate at maximum efficiency throughout their useful lifespan.

Course Objectives:

Upon the successful completion of the course, participants will be able to:-

• Provide participants with a working knowledge of current methods for designing effective drainage systems that minimize their construction and maintenance costs.
• Select the most suitable design approach, including the best computer software for your project out of the available design approaches and practices that you study in this course
• Examine design applications in new developments and retrofitting into existing urban areas
• Apply new innovative emerging techniques for stormwater quantity, quality and erosion control
• Solve stormwater problems being exposed to them in the course under specialist guidance
• Adjust to your changing role and responsibility
• Employ cost-effective operation and maintenance methods
• Use the best practices gleaned from the experience of national and international experts in municipal infrastructure
• Develop and implement a successful and affordable st

Who Should Attend?

Municipal engineers, designers, operation and maintenance staff, developers, planners, consultants, engineers, and other technical personnel responsible for drainage and stormwater management facilities? This course is particularly suited to those who want a comprehensive review of both the design and implementation methods.

Course Outlines:

Welcome, Introduction, Course Preview, Learning Outcomes, and the Assessment Method - Overview –The Big Picture

Why Do We Need Storm Water Management?

• Effect of urbanization on surface runoff, peak flow, volume and timing, surface water quality, groundwater quantity and quality, natural habitat, stream corridors
• Changes in hydrological cycle-why we cannot match pre-development conditions once we urbanize
• Degradation of receiving watercourses, erosion and
   sedimentation
• Changes in stream temperatures-effect on cold water streams
• Current issues in controlling the stormwater quantity and quality-the lack of finding perfect solutions

Protection of Receiving Watercourses

• Flood hazards-risk assessment and need for public education
• Flood plain delineation, choice of flood plain criteria and the problems of public acceptance
• Aquatic habitat protection
• Erosion, meandering, and the new concept of Valley Control
• Introduction to Morphology-is it a science or art?

Selection of Best Management Practices Design Criteria

• Post and pre-development criteria
• Water quality, fish and body contact recreation criteria
• Erosion control criteria
• Major-minor system
• Water balance, recharge criteria-why it is impossible to meet some of the criteria
• Water temperature criteria -why it is impossible to meet frequently the criteria
• Effect of climate change on how to make allowance for it when we know so little?

Review of Numerous Alternative Stormwater Water Management BMPs-and Why None Are Perfect

• Source control: roof and foundation drains, permeable pavers, etc.)
• Conveyance controls, (Swales, previous pipes, etc.)
• End-of- pipe controls, (wet and dry ponds, underground tanks, wetlands, filters, infiltration facilities, separators, etc.)
• Good Housekeeping and municipal practices, (Land use restriction, litter control, recycling, waste control, street sweeping, road salt management, public education, etc.
• Recommended BMP Manuals

Recent Developments in the Design of BMP for Low Impact Developments-How Effective Are They?

• Low Impact Developments
• Innovative Landscape design: rain garden, bio-retention, permeable paving, and green roofs
• Review of emerging technologies, new commercial
  products to control water quality-and the search
  for the whole truth

How to Select BMPs for Different Site Conditions

• Treatment trains
• The selection process, use of selection matrix
• Short and long-term costs

Special Cases: Redevelopment, Retrofits, and Infilling

• Stormwater management criteria
• Applicable practices
• Approach to retrofits

Design of the More Frequently Used Best Management Practices

• Outline of Wet pond design
• Outline of Grassed swale design

Operation and Maintenance of BMPs-a Municipality's Long Term Liability

• Municipal input during reviews of pond, wetland, swale, infiltration, porous pavement designs
• Erosion and sediment control at construction sites and inspection during construction
• Operation and maintenance tasks for source, conveyance and end-of-pipe facilities
• Preparation of municipal operation and maintenance plan
• Resources: budgeting, manpower, equipment, scheduling

Monitoring

• Programs for monitoring flows, water quality, aquatic habitat,
• Base lone monitoring
• Performance monitor
• The new trend in effectiveness monitoring-how to do it and the difficulty of scoping it
• Parameters to be monitored, sampling, equipment
• Safety and public perception-lessons learned from court cases
• Preparation of a four-phase monitoring program

Introduction to Frequently Used Software’s and the Hosted software’s (included in the course) contained in the Hydraulic Engineering Handbook