Overview
The discharge from culverts can cause erosion and subsequent sedimentation problems if not controlled at the source. To mitigate this problem the discharge energy can be dissipated at the source. This course will provide design information for energy dissipation problems at culverts.
Several energy dissipators will be discussed including USBR Type III and IV stilling basins, SAF Stilling Basins, CSU Rigid Boundary Basins, and Stilling wells among others.
After reading this 15-hour course the student will have valuable information that can be used to effectively analyze and mitigate energy dissipation problems at culvert outlets and open channels.
The course is based solely on the materials “Hydraulic Design of Energy Dissipators for Culverts and Channels” as published by the Federal Highway Administration.
The student must take a multiple-choice quiz consisting of seventy (70) questions at the end of the course to obtain PDH credits.
Specific Knowledge or Skill Obtained
This course teaches the following specific knowledge and skills:
- How Froude number is related to the hydraulic jump
- How to design stilling wells
- How to design stilling basins
- How to determine the size of rip-rap used as energy and energy dissipator
- How to protect a culvert against buoyant failure
- How to determine the density of water at various temperatures
- How right of way issues can affect the type of energy dissipator put into use
- How to determine the critical depth in a culvert
- Best situations to use a broken back culvert
- How to determine the overall friction resistance
Course
Click on the following link to the PDF document to review the course material before taking the quiz for credit.
Hydraulic Design of Energy Dissipators for Culverts and Channels
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