Course Catalogue.

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

• Analyze existing systems for any possible problems, maintenance and rehabilitation
• Recognize the numerous issues to consider when planning sewer and stormwater drainage systems at a given site
• Design sanitary sewer and stormwater drainage systems to meet given planning objectives

Description
Eighty percent of a municipality’s problems are caused by twenty percent of its sanitary sewers and stormwater drainage systems. The best way to avoid future problems is to pay greater attention to them during the design phase. This three-day workshop is aimed at those who want to hone their skills in sanitary sewer and stormwater drainage systems design, and stormwater management.

In a workshop setting, under the guidance of your instructor, you will complete a sanitary sewer and stormwater drainage system design and use a case study to discuss and develop a plan to mitigate the environmental impact caused by urban development and the management of stormwater.

Who Should Attend
Consulting Engineers • Municipal Engineers • Civil Project Engineers • Construction Managers • Engineering Field Managers • Works Engineers • Public Works Directors • City Engineers • Superintendents of Operations • Wastewater System Managers • Safety Inspectors and Procurement Officers • EITs • Technicians and Technologists • Sewer Construction Contractors

Course Syllabus

Day I

Sanitary Sewer System

Planning For a Sanitary Sewer System

• Planning objectives
• Layout objectives

Sewer Hydrology and Hydraulics - A Review

• Gravity flow in pipes
• Hydraulic gradient calculations
• Non-uniform open channel flow
• Computer applications in hydraulics
• Hydrology
• The hydrologic cycle
• Rainfall and surface water

Sanitary Sewer System Design

• Peaking factors
• Minimum and maximum velocities
• Self-cleansing velocities
• Minimum pipe size/slope
• Cleansing velocity
• Capacity design
• Infiltration
• Sewer pipes
• Separation of water main and sewers
• Optimum bedding conditions
• Cover
• Manholes
• Loading calculations for various types of land use

Sanitary and Pump Stations

• Need for pump stations
• Site selection and other considerations
• General pump station design
• Wet well design
• System head analysis and pump selection
• Force main design

Sewer Maintenance and Rehabilitation

• Sewer problems
• Critical sewers
• Planning investigation
• Assessing the system condition

Workshop I - Design of a Sanitary Sewer
Participants will work on a design exercise

Adjournment

Day II

Stormwater Drainage System

Drainage and Stormwater Design Criteria

• Impacts of Urbanization
• Rate control for flood management
• Volume Control
• Water balance, recharge & base flow criteria
• Water quality control
• Erosion control
• Other Criteria & Considerations

Hydrology Overview

Rainfall Analyses

• Storm distribution in time
• Historical storms
• Storm frequencies
• Design storms
• Flood frequencies

Time of Concentration - Review of Design Equations & Selection

• Bransby Williams Equation
• Kirpich Equation
• Airport Formula

Hydrology - Methods of Computing Runoff & Design Flows

• Computer model and data input
• Runoff coefficients
• Hydrograph Method
• Estimating discharge using recorded stream flow

• Impacts of Climate Change on Rainfall

Hydraulic Design of Open Channel Flow

• Manning's Equation
• Stable Channels
• Composite Channels
• Triangular Channels & Gutters
• Closed conduits

Workshop II - Design of Stormwater Drainage System
Participants will work on a design exercise

Adjournment

Day III

Stormwater Design & Impact Mitigation

Review of Drainage Design Computer Software

• Simple models compared to complex models
• User expectations and required knowledge
• Introduction to SWMM Modeling

How to Select Stormwater Best Management Facilities

• Major and minor system design
• A review of the most frequently used control practices
• Review the latest technologies (porous pavement, green roofs, bio-retention, etc.)
• Green Stormwater Infrastructure / Low-Impact Development
• Numerical calculations and analysis methodology
• Computer modelling and input parameters
• A case study of development with mitigation alternatives

Detention Pond Design

• Detention pond design basics
• Detention pond modelling concepts
• Components of stormwater facilities
• Routing data: storage and hydraulics relationships
• Inlet and outlet design

Workshop III - Design of Mitigation System
Participants will work on a design exercise.

Questions and Answers - Feedback to Participants on Achievement of Learning Outcomes

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