Roof Runoff Structure Design (NRCS Standard 558)

Learn how roof gutters and drip trenches are designed on agricultural projects.
Rating: 4.3 out of 5 (129 ratings)
5,592 students
English [Auto]

Design roof gutters for barns and agricultural buildings
Compute peak flows for roof runoff structures
Size underground outlets under gravity flow conditions


  • Will need a computer with MS Excel and basic familiarity with how to use spreadsheets.
  • You'll need to be able to print out worksheets for completing the exercises and course project.


Roof runoff structures are essential for diverting clean rain water around and away from contaminated areas. This course will show conservation professionals how to design and construct these fundamental structures. At the end of this course you will be able to design roof gutters and drip trenches as part of agricultural conservation projects.

Lectures are interspersed with exercises to complete on your own. A course project caps the project and ensures that that students have learned the required techniques. Students will need a printer to complete the class exercises. They should have a scanner to send in their course project but postal mail is accepted as well.

The course should take approximately 4 hours for an entry level employee to complete. Runoff Hydrology is not a required prerequisite as roof runoff structures are sized using simplified methods. Students should take this course in order to improve their conservation planning and design skills.

Who this course is for:

  • Entry level soil and water conservation district technicians and planners


Conservation Planning, Design & Implementation across NY!
Tim Clark
  • 4.3 Instructor Rating
  • 1,983 Reviews
  • 29,606 Students
  • 5 Courses

Tim is a NY State Registered Professional Engineer with a diverse background in agricultural conservation, civil/site design, railway design, aviation design, and highway design. He is currently the State Engineer for the New York State Soil and Water Conservation Committee housed at the NY State Department of Agriculture and Markets, where he is dedicated to improving the planning, design, and construction of conservation practices across New York State.