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Ohio State University Extension


Overholt Drainage School-Session 3

Mar 19, 2015, 9:00am - 4:00pm
Defiance County EMA Building, State Route 15, Defiance, OH
Larry Brown

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 3 Concepts in Water Table Management with Subirrigation: Aspects of Benefits, Design, Installation and Management
March 20, 1 day
Friday 9:00 AM to 4:00 PM



Drainage Water Harvesting for Agricultural Water Supply (continuation as needed)
System Design Objectives
Benefits for Water Quality and Crop Yields
Soil Considerations
Overview of Water Management Zones, Lateral Spacing, Mains
Water Considerations
Irrigation Water Supply and Pumps
Installation Considerations
Management and Operation

Session 3 - Classroom instruction and presentations, day time work sessions and programs. Completion of a subsurface drainage design educational program is essential for all, but required for contractors.


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