Small 3pt.
Pull Type
GPS & Laser

How do I get started?

Attend the Overholt Drainage School by Ohio State University

Links to Drainage Articles:


Ag 101 - By U.S. EPA (Good overview )


What is Agricultural Drainage? -
by Lowell Busman and Gary Sands. University of Minnesota - Extension


Overholt Drainage School Flyer- Ohio State University
Contact Larry C. Brown 614-292-3826 or brown.59@osu.edu
This school is held each year in March. March 11-15 2013
Registration Form


Drainage Fact Sheet
by Gary Sands, University of Minnesota Extension Agricultural Engineer.


Field drainage/sub-irrigation systems in Missouri
David Bennett of Farm Press


New tile drainage technologies at field day  -
By Keven Arrowsmith, Iowa State University Extension


Producers' interest in tile drainage continues to grow


Tile supplies, Installation guides, Flow Volume -  Springfield Plastics, Inc.


Tile Drainage by Wikipedia

Overholt Drainage School Topics

March 19-23, 2012 

·        Laser Surveying, Topographic Mapping, & GPS Mapping

·        Agricultural Subsurface Drainage  Systems Design

·        Drainage Water Management: Controlled  Drainage System Design and Installation

 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, Ohio Land Improvement Contractors and Associates


Bring: calculator; warm clothes, boots for field.


Enrollment limited: No walk-ins please.

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

SESSION I: 1 ½ days  Laser Surveying, Topographic Mapping, & GPS Mapping

. Overview of Laser Surveying; Lenker Rod

. Field Notes Laser/ Using Lenker Rod

. Hands-on Field Layout and Survey

. Field Notes/Interpretation of Data

. Topographic Features and Contours, Plotting

Field Data, Drawing Contours

. Developing Topographic Map

. Using Topographic Map Information

. Computer Applications

. GPS Applications, Drainage Systems Mapping

 Extensive fieldwork, classroom instruction, evening work sessions. Basic knowledge of elevations required.


SESSION 2: 2 1/3 days  Agricultural Subsurface Drainage Design, & Installation

. Agricultural Drainage Concepts; Soils Basics

. Drainage Guides

. Subsurface Drainage Design Concepts,

Procedures, Sizing Laterals and Mains

. Design Exercises, Work Sessions

. Design Problem for Monday’s Field Site

. Benefits and Economics of Drainage

. Environmental Considerations

. Installation Basics, Methods, Research

. Proper Installation and Common Mistakes

. Other Drainage Design Concepts


Extensive classroom instruction, work sessions, minor fieldwork possible, evening work sessions, programs. General understanding of drainage and leveling required.

No formal program Thursday evening.


SESSION 3: 1 day  Drainage Water Management: Controlled Drainage System Design and Installation

Friday 9:00 AM to 4:00 PM


. Agricultural Drainage Water Management:

Concepts, Purpose, Benefits, Practices

. Midwest Initiative; Regional Projects

. Controlled Drainage Design

. Sizing Laterals and Mains

. Design Problems, Layout

. Installation, Operation and Management

. Drainage Collection and Pumping

. Drain Spacing and Depth Alternatives

. Opportunities with Drainage Management

. Drainage Outlets, Buffers, Other Applications

 Extensive classroom instruction, work sessions, minor fieldwork possible, etc. Completion of a subsurface drainage design educational program encouraged.

 Questions Contact Larry C. Brown 

614.292.3826 or brown.59@osu.edu  



Home ] Contents ]

Copyright © 2002 JESCO AG LLC
Built in Iowa, Made in the USA.