Culvert Design and Inspection

Online /
May 1 - 2, 2024 /
Course Code: 15-0512-ONL24

The confirmation of this course depends on early registration; Register early to avoid the postponement or cancellation of a course.
  • Overview
  • Syllabus
  • Instructor


Please note, This instructor-led course has specific dates and times:
This course is held online over 2 days on the following schedule (All times in Eastern Time Zone):

10 am to 3 pm Eastern (Will include the usual breaks)

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

  • Solve simple hydrology and hydraulic engineering problems
  • Review hydrology, hydraulics and the service life of culverts
  • Review culvert inspection condition reports

Culverts are a critical component of our drainage system which protects people and property from the damaging effect of floods. Assessment and review of designs and condition reports are essential functions in asset management in today's setting of fiscal restraint.

The course was prepared for managers, reviewers, technicians, and inspectors who need a basic understanding of the design, installation, and inspection of culverts during their useful life. This course provides the fundamentals without delving into complicated mathematical formulas. Lectures will include real-life examples and simple hands-on exercises and problem-solving.

Course Outline

  • Drainage Design Criteria
  • Rainfall Analyses
  • Time of Concentration –Review of Design Equations, Charts and Their Limitations
  • Workshop for Estimating Flows in Drainage Design
  • Open Channel Flow
  • Design of Open Channels
  • Design of Culverts and Bridge Openings
  • Culvert Inspection and Estimation of Service Life
  • Review and Conclusions

Who Should Attend
Engineers managers, reviewers, technicians, and inspectors not familiar with hydro technical engineering, such as:

  • civil engineers
  • mechanical engineers
  • mining engineers
  • agricultural engineers
  • municipal engineers
  • manufacturers of drainage products
  • general contractors
  • property managers
  • directors of physical plants
  • municipal officials
  • infrastructure inspectors
  • field review personnel
  • project engineers
  • others who would like to know more about hydro-technical systems or require a refresher

Requirements and Special Features
Participants are expected to have some elementary technical knowledge of engineering principles.

Notes will be provided in electronic format. Please have a standard engineering calculator with scientific functions, a laptop with Microsoft Windows, MS Excel spreadsheet, or equivalent. The course includes a comprehensive list of reference material available on the internet from government & non-government organizations.

More Information

Time: 10:00 AM - 3:00 PM Eastern Time

Please note: You can check other time zones here.


Basic Hydrology-Refresher

  • Introduction
  • Review of drainage concepts and needs

Drainage Design Criteria

  • 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?

Rainfall Analyses

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

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

  • Bransby Williams equation
  • Kirpich equation
  • Airport formula

Workshop for Estimating Flows in Drainage Design

  • Use of Rational Method for estimating design discharge
  • Discussion of modelling and SWMM for estimating design discharge
  • Use of Statistical analyses of observed data to estimate design discharge

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

Design of Culverts and Bridge Openings

  • Culverts, inlet and outlet control
  • Use of design charts
  • Inlet erosion protection
  • Debris control
  • Fish passage

Culvert Inspection and Estimation of Service Life

  • Inspection requirements
  • CS Corrosion
  • Estimating CS Service Life

Review and Conclusions

  • Design objectives
  • Design standards
  • Liability and Risk


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.

The Engineering Institute of Canada

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Course Rating
4.3 out of 5

Overall rating of this course by its previous attendees!

Fee & Credits

$695 + taxes

  • 0.8 Continuing Education Units (CEUs)
  • 8 Continuing Professional Development Hours (PDHs/CPDs)
  • ECAA Annual Professional Development Points

Group Training
This course can be customized and delivered to your group of staff at your facility, saving time and money.
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