TRAINING.

Overview

After participating in this course, you will be able to:

• Apply new techniques to enhance the protection of life and property from flood damage.
• Select computer software for application in flood control and urban drainage design
• Strengthen your skills in flood control and urban drainage system design
• Understand the limitations of the standard of practice and examine the state-of-the-art engineering
• Gain a solid understanding of water quality design principles and criteria

Description
After a brief refresher of basic hydrology, this course focuses on the practical application of sound planning and design practices, specific stormwater management techniques, and a detailed review of the complex stormwater management pond design procedures. By participating in this course, you will focus on the latest application of sound planning, design, construction and maintenance practices for stormwater management ponds.

The workshop will cover a review of the building blocks of a pond design, such as hydrology and hydraulic calculations that underlie a design. It will provide an overview of the current criteria required by approval agencies and review pond layout components, such as forebays, permanent and active storages, inlets, outlets, and spillways.

Case studies will be presented to demonstrate, in practical terms, the pros and cons of alternative strategies, how to avoid pitfalls and the characteristics of successfully designed systems.

Course Outline

• Overview of stormwater management for flood control and improving water quality
• Selection of Design Criteria for Flood Control
• Stormwater design criteria
• Pond design, operation, inspection, maintenance, and monitoring
• Review of Case Studies and Design Examples

Who Should Attend
Those involved with the design, construction, operation, maintenance, or review of stormwater ponds, including:
Drainage Engineers • Municipal Engineers • Consultants • Technologists • Developers • Planners • Supervisors • Field and Technical personnel. 

Please note: You can check other time zones here.

Syllabus

Day 1-Building Blocks of Flood Control

Welcome, Introduction, Course Preview, Learning Outcomes & the Assessment Method

Overview of Flood Control Alternatives, Advantages and Disadvantages

Introduction

• Why do we need stormwater management?
• Review of stormwater best management practices & role of stormwater management
• Review of the latest flood control & stormwater management criteria
• Change in peak flows and runoff volumes
• Change in water quality
• Change in groundwater recharge
• Change in stable river systems
• Standard of Practice compared to State of the Art

How to Select Stormwater Best Management Facilities

• Major-minor system design
• A review of the most frequently used control practices
• Storm ponds for quantity control, flood reduction, and quality improvement
• Review of latest technologies (porous pavement, green roofs, bio-retention, etc.)
• Low Impact Development; Standard of Practice and State of the Art

Modify the Flood by Structural Control and Non-Structural Controls

• Dams, Reservoirs, Levees
• Channel improvements, Diversion
• Floodproofing, Elevate structures
• Relocation
• Watershed treatment
• Planning and enforcement, Redevelopment
• Valley system approach and development setbacks
• Flood forecasting, Evacuation
• Emergency measures

Overview of Methods Computing Flows Based on Rainfall

• Data preparation, IDF curves, statistical frequency analysis
• Effect of climate change
• Time of concentration, Various method comparison
• Rainfall distribution, design hyetographs
• Rainfall abstractions, runoff coefficients, SCS CN, antecedent conditions
• Hydrographs and Unit hydrographs
• Peak flow calculations
• Computer-assisted flow calculations
• Example of estimating runoff using the standard of practice

Overview of Methods Computing Flows Based on Recorded Flows

• Data length, Homogeneity of data, Statistical analysis
• Regional analysis of stream flow to estimate flood discharges
• Compare results to rainfall-based example

Day 2- Land Drainage and Stormwater Management

Hydraulic Modeling of Stream Flows and Flood Levels

• Hydraulic methods and model application
• Selection of models

Flood Plain Mapping

• Preparation of base maps, topographic data, surveys
• Implementation of development control using floodplain maps & flood and erosion control policies
• One and two-zone concepts

Pond Design Criteria

• Pond types: dry, wet, and extended detention ponds
• Typical design objectives and approval criteria
• Discharge control criteria
• Quality control criteria
• Temperature

Overview of Pond Components

• Permanent & active storage
• Inlets, Forebays, Outlets, Spillways
• Spillway & embankment
• Safety & recreational activities
• Legal implications
• Liabilities & risk reduction

Step-by-Step Review of Pond Design

• Input hydrology and design discharges
• Establish control works
• Iterate for pond volume and configuration
• Effect of water quality features
• Design of inlet
• Design of forebay
• Design of outlets

Operation, Inspection & Maintenance

• Municipal input during design review
• Post-construction operation, inspection & maintenance requirements
• How do O&M factors affect designs

Case Studies / Design Examples

• New Storm Sewer System and Channel/Culvert Design
• Pond Design
• Retrofit of an Existing Storm System

Questions & Answers & Feedback to Participants on Achievement of Learning Outcomes

Instructor

Nav Sandhu, P.Eng.

Nav Sandhu, P.Eng., is a Senior Water Resources Engineer with 20 years of experience.

He has extensive experience in stormwater management and drainage planning and design throughout Canada, ranging from servicing /planning studies to detailed design of complex systems. His stormwater infrastructure design experience includes storm sewer systems, culverts, above and below-ground detention and water quality facilities, diversion structures, control and outfall structures, infiltration systems, rip-rap protection works, and instream rehabilitation works. He’s also experienced in base-flow augmentation, source control/rainwater management and other LID systems-relatively new techniques that support sustainable design.

His stormwater engineering knowledge, municipal development, and highway experience make him an excellent resource for a range of clients. He has also provided expert opinions and reports on legal proceedings related to drainage throughout BC.