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Ohio State University Extension


Overholt Drainage School-Session 1

Mar 16, 2015 through Mar 18, 2015, 9:00am - 12:00pm
Defiance County EMA Building, State Route 15, Defiance, OH
Larry Brown

SESSION I. Agricultural Subsurface Drainage Design, Layout and Installation

Overholt Drainage School

Program Objective:

Provide continuing education for land improvement contractors, soil and water conservation technicians, farmers, engineers, consultants, sanitarians, and others interested in advancing their knowledge of basic concepts, principles, and skills related to the purpose, design, layout, construction, and management of Soil and Water Conservation Systems, with emphasis on Water Management and Water Quality. 


include Land-Grant University Faculty/Staff, NRCS/ODNR/SWCD engineers and technicians, ARS engineers and scientists, and experienced OLICA contractors and associates.

SESSION I. Agricultural Subsurface Drainage Design, Layout and Installation

March 16-18, 2 ½ days
Monday 9:00 AM to 9:00 PM
Tuesday 8:00 AM to 9:00 PM
Wednesday 8:00 AM to Noon+

  • Agricultural Drainage Concepts
  • Soils Basics
  • Drainage Guides
  • Subsurface Drainage Design Concepts, Procedures, Sizing Laterals and Mains
  • Design Exercises, Work Sessions
  • Design Problem for Field Site
  • Benefits and Economics of Drainage
  • Environmental Impacts and Considerations
  • Installation Basics, Methods, Research
  • Proper Installation and Common Mistakes
  • Other Drainage Design and System Management Concepts

Session 1 - Extensive classroom instruction, day time and evening work sessions and programs. Basic understanding of drainage and elevations encouraged.


Register for full 5-day program or individual sessions. Please complete registration form and submit with payment before March 9. Call for availability after March 9. Contact Dr. Brown at 1-614-292-3826; or email


Full-Program Registration (Includes All Three Sessions) March 16-20 (5 Days)  $635


Individual Sessions Registration

SESSION 1, Agricultural Subsurface Drainage Design, Layout, Drainage Installation March 16-18 $450

SESSION 2, Drainage Water Management: Controlled Drainage System Design and Installation March 18-19 $300

SESSION 3, Concepts Water Table Management w/Subirrigation: Aspects Design, Installation/Management March 20 $200

Sponsored by:

Overholt Drainage Education and Research Program, Food, Agricultural and Biological Engineering, OSU Extension, OARDC, The Ohio State University, in cooperation with USDA-NRCS, USDA-ARS, Soil and Water Conservation Districts, Defiance SWCD, Ohio Land Improvement Contractors and Associates