Comprehensive Review of Drainage Design Methods for Culvert, Open Channel and Storm Sewer Design

Online /
Oct 20 - 21, 2020 /
Course Code: 1032-ONL20

  • Overview
  • Syllabus
  • Instructor


Please Note:
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

11:00 am to 7:00 pm Eastern (Will include the usual breaks) *********************************************************************************

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

  • Consider technical issues in design related to planning and environmental impact
  • Enhance protection of property from flood damage and reduce pollution at a lower cost
  • Select computer software that is most suitable to your application of urban drainage design
  • Participate in public consultation meetings with confidence
  • Employ design methodologies learned in the course on your next urban drainage project

Changes in land use affect urban drainage and present challenges for engineers who must deal with drainage planning, runoff analysis, storm sewer hydraulics and watercourse drainage within government regulations.

This course provides participants with a comprehensive understanding of culvert, open channel, and storm sewer design, and allows designers already in the field to update their knowledge. The course will also address the use of computer software for design work. Workshops will allow you to work through examples using different methodologies and available software.

Course Outline:

  • Drainage and stormwater design criteria
  • Rainfall analyses
  • Time of concentration equations
  • Methods of computing rainfall losses
  • Estimating flows for drainage design
  • Workshop for estimating design discharges
  • Open channel flow
  • Design of open channels and storm sewers
  • Design of culverts and bridge openings
  • Drainage design software

Who Should Attend:
Municipal Engineers and Managers • Planners • Civil Engineers • Environmental Engineers • Designers • Project Managers • Hydraulic Engineers • Technicians and Technologists

REQUIREMENTS: Notes will be provided in Adobe PDF format, please bring your laptop with Excel & a web browser. Please download and install the following two software packages:

More Information


Please Note:
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

11:00 am to 7:00 pm Eastern (Will include the usual breaks) *********************************************************************************

Day I

Welcome, Introduction, Workshop Preview, Learning Outcomes and the Assessment Method

Basic Hydrology – Refresher and Workshop


  • Review of drainage concepts and needs
  • Stormwater design criteria and level of service

Rainfall Analyses

  • Design storms or floods-how to cope with lack of long and reliable data sets
  • Storm frequencies-the danger of extrapolation
  • Intensity-Duration-Frequency (IDF) data
  • Historical storms
  • Storm distribution in time

Drainage and Stormwater Design Criteria-Are We Playing Russian Roulette?

  • Flood control-risks, liability and the unknown effect of climate change
  • Water quality control
  • Erosion control
  • Water balance, recharge and thermal warming criteria-why is it so difficult to meet the criteria?

Time of Concentration –Review of Design Equations, Charts and Their Limitations

  • Bransby Williams equation
  • Kirpich equation
  • Airport formula

Methods of Computing Rainfall Losses

  • Use of runoff coefficients
  • SCS curve number method
  • Horton infiltration method

Workshop for Estimating Flows in Drainage Design

  • Use of Rational Method for estimating design discharge
  • Use of Statistical analyses of observed data to estimate design discharge

Day II

Basic Hydraulics-Refresher

Open Channel Flow

  • Basic laws of hydraulics
  • Types of flows
  • Manning's equation
  • Roughness coefficients
  • Stream erosion and threshold velocities
  • Effect of urbanization on stream hydraulics

Design of Open Channels

  • Manning’s equation
  • Stable channels
  • Composite channels
  • Triangular channels and gutters
  • Examples from Day Workshop

Design of Storm Sewers

  • Gravity flow sewers
  • Hydraulic losses
  • Simple spreadsheet design approach
  • Examples from Day 1 Workshop

Design of Culverts and Bridge Openings

  • Culverts, inlet and outlet control
  • Use of design charts
  • Workshop examples

Drainage Design Software – A Review

  • Available software tools
  • Software selection

Questions and Answers, Feedback on Achievement of Learning Outcomes

Concluding Remarks and Final Adjournment


Jim Dumont, P.Eng.

Jim is a water infrastructure specialist with over 40 years of experience in the fields of water resources and civil engineering. Jim has been responsible for a variety of projects from planning studies that establish design criteria to detailed flood relief designs of complex hydraulic systems and municipal infrastructure.


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Course Rating
4.7 out of 5

Overall rating of this course by its previous attendees!

Fee & Credits

$1295 + taxes

  • 1.4 Continuing Education Units (CEUs)
  • 14 Professional Development Hours (PDHs)
  • ECAA Annual Professional Development Points

Canada Job Grant
The cost of this course could be covered by Canada Job Grant.

Your company may be eligible for funding! LEARN MORE
On-Site Training
This course can be customized and delivered to your group of staff at your facility, saving time and money.
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