Water Resources
- The Illinois Drainage Guide contains a wealth of information about all types of drainage. It also includes an Economic Analysis Calculator written by University of Illinois agricultural engineer Richard Cooke. You can find the guide at www.wq.uiuc.edu/dg.
- The drainage analysis chapter from the National Corn Handbook is located at www.ces.purdue.edu/extmedia/NCH/NCH-23.html.
- Springfield Plastics and Prinsco, manufacturers of drainage pipe and related products, both offer cost/return calculators:
- Prinsco: www.prinsco.com/index.cfm/pageid/37
- Springfield Plastics: www.spipipe.com/Apps/Drainpay.XLS