Bottomless Culvert Scour Study
Credits: 5 PDH
PDH Course Description:
Bottomless (or three-sided) culverts use the natural channel bed and are environmentally attractive alternatives to traditional closed culverts. They are often promoted as alternatives for replacing short bridges.
Phase I:
a preliminary investigation focused on measuring maximum scour depths at the culvert entrance and developing equations for estimating inlet scour.Phase II:
a follow-up investigation to include scour measurements at the outlet, submerged entrance scour measurements, detailed velocity and depth measurements with a prescour fixed bed to refine the equations, and evaluation of various potential
scour countermeasures to reduce scour at the culvert inlet and outlet.
Topics:
- Introduction to Bottomless Culverts
- Test Facilities and Instrumentation
- Model Bottomless Culvert Shapes
- Experimental Parameters
- Scour protection: Riprap Analysis
- Theoretical Background
- Clear Water Scour Experiments
- Riprap Stability Design Coefficients
- Use of Cross Vanes for Inlet Scour Control
- Scour Calculation Examples
To take this course:
1.) Enroll in Course:Click below to enroll:
(must be logged into your user account)
Download the Study Guide
3.) Test: Once you've thoroughly read the course materials, please click below to take the final examination.
Take the final exam
4.) Certificate: A passing grade of 70% or higher on the exam, is required to receive the certificate of completion for this PDH course.
NOTE: After the exam is completed, you will need to return to this page, in order to print (download) the certificate of completion.
Print the Certificate of Completion
Intended Audience: This course is intended for Hydraulic, Civil, Transportation, Water Resources, and other engineers whose job description may require a general knowledge of the scouring effects of streams and rivers on culvert and bridge structures.
Publication Source: US DOT (Federal Highway Administration)
Print the Certificate of Completion
Intended Audience: This course is intended for Hydraulic, Civil, Transportation, Water Resources, and other engineers whose job description may require a general knowledge of the scouring effects of streams and rivers on culvert and bridge structures.
Publication Source: US DOT (Federal Highway Administration)
Donald Parnell, PE