Course Description

This course highlights Manning’s Equation, as well as channel, pipe and stream flow. It describes varied flow in channels, culvert hydraulics, fundamental hydrology and provides necessary calculations for runoff. Participants will explore designs for storm sewer, culvert and detention, and explain stormwater detention.


Course Outline

Lesson 1: Uniform Flow in Channels

  • Manning's Equation
  • Channel Flow
  • Pipe Flow
  • Stream Flow
  • Problems

Lesson 2: Varied Flow in Channels

  • Fundamental Concepts
  • Backwater Profile
  • Entrance to a Channel
  • Hydraulic Jump
  • Problems

Lesson 3: Runoff Calculations

  • Rational Method
  • Modified Rational Method
  • NRCS Method
  • NRCS Method Computations
  • NRCS Method versus Rational Method
  • Problems

Lesson 4: Storm Sewer Design

  • Fundamental Concepts
  • Design Investigation
  • System Layout
  • Hydraulic Design
  • Storm Sewer Outfalls
  • Case Study
  • Problems
  • Further Reading

Lesson 5: Culvert Design

  • Fundamental Concepts
  • Design Investigation
  • Design of New Culvert
  • Culvert Replacement
  • Case Study I
  • Case Study II
  • Problems

Lesson 6: Stormwater Detention

  • Stormwater Impoundment
  • Outlet Structure
  • Emergency Spillway
  • Reservoir Routing
  • Problems

Lesson 7: Detention Design

  • Fundamental Concepts
  • On-Site Detention Design
  • Case Study I
  • Case Study II
  • Problems

Learner Outcomes

Upon completion of Stormwater I and II and Stormwater Management Hydraulics and Hydrology I and II courses, students are prepared to take the American Public Works Association (APWA) Certified Stormwater Manager (CSM) certification exam.

To demonstrate eligibility, candidates must submit an application documenting the completion of one of the following pathways:

  • High school graduation or equivalent and seven years of relevant work experience
  • Associate degree or equivalent trade school certificate and five years of relevant work experience
  • Bachelor’s degree and three years of relevant work experience
  • Master’s degree and two years of relevant work experience
  • Doctoral degree and one year of relevant work experience

Relevant work experience is that performed within or for a public entity in one or more aspects of stormwater management as defined in the CSM target audience description and illustrated in the CSM Content Outline.

Please note that individual state requirements may vary. Students must check with their state’s governing body for state specific requirements.


Pre-requisites: Stormwater Management: Hydraulics and Hydrology I 

Participants have 12 months to complete this self-paced online course.

This course can also be taken as a bundle Stormwater Management Career Prep.

All necessary materials included.


Internet Connectivity Requirements:

  • Cable and DSL internet connections recommended.

Hardware Requirements:

  • Minimum Pentium 400 Mhz CPU or G3 Macintosh. 1 GHz or greater CPU recommended.
  • 256MB RAM minimum. 1 GB RAM recommended.
  • 800x600 video resolution minimum. 1025x768 recommended.
  • Speakers/Headphones to listen to Dialogue streaming audio sessions.
  • A microphone to speak in Dialogue streaming audio sessions.

Operating System Requirements:

  • Windows Vista, 7, 8, 8.1, 9, 10
  • Mac OSX 10 or higher.
  • OpenSUSE Linux 9.2 or higher.

Web Browser Requirements:

  • Google Chrome is recommended.
  • Firefox 13.x or greater.
  • Internet Explorer 6.x or greater.
  • Safari 3.2.2 or greater.

Software Requirements:

  • Adobe Flash Player 6 or greater.
  • Oracle Java 7 or greater.
  • Adobe Reader 7 or greater.

Web Browser Settings:

  • Accept cookies
  • Disable pop-up blocker.
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