Department of Agricultural and Biological Engineering

Illinois Drainage Guide

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  • Drainage Design
    • Drainage Guidelines
      • [ZIP EXCEL] Depth/Spacing Recommendations
      • [ZIP EXCEL] County Specific Simulations
      • [ZIP EXCEL] Sizing Pipes
      • [ZIP] Lateral Specifications
      • [ZIP] Region of Influence
      • [ZIP] Flow Profiles in Laterals
    • Outlets for Drainage Systems
      • [ZIP] Ditch Sizing Routine
      • [ZIP] Manning's Equation
      • [ZIP] Flow under Submerged Outlet
      • [ZIP] Minimum Curvature
      • [ZIP] Design of Riprap Lined Channel
    • Surface Drainage
      • [ZIP] Ditch Sizing Routine
    • Subsurface Drainage
      • [ZIP] POE of Monthly Drainage
      • [ZIP] Drainage Equations
      • [ZIP] Sizing Drainage Pipes
      • [ZIP] Lateral Specifications
      • [ZIP] Flow Profiles in Laterals
      • [ZIP] Pump Specifications
      • [ZIP] Frost Penetration Depth
  • Drainage Water Quality

    Drainage Water Quality

    Learn about drainage water quality

    • Conservation Drainage
      • [ZIP] Bioreactor Design
    • Grassed Waterway Design
      • [ZIP] Waterway Design Utility
  • Other Considerations

    Other Considerations

    Learn other factors to consider

    • Economic Considerations
      • [ZIP] Economic Analysis
      • [ZIP] Yield Analysis
    • Printable Tables and Charts
    • Related Information
  • Workshops

    Workshops

    Past and ongoing workshops

    • 2023 Advanced Drainage Design Workshop
    • 2022 Drainage Workshop Registration
    • 2020 Online Workshop Flyer
  • Drainage Tools

    Use these tools

    These tools are free

    • Illini Drainage Tools
      • [ZIP] Instructions
      • [External] Routines
      • [ZIP] Test Data
  • About

    About us

    Learn about this project

    • History of Drainage in Illinois
    • Basic Terminology and Conversion Factors
    • Provide Feedback
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Illini Drainage Tools [Manual]

Illini Drainage Tools [Manual]

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Interactive Drainage Design Sessions with the Recently Developed Illini Drainage Tools

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Illinois Drainage Guide

1304 W. Pennsylvania Ave.

Urbana, IL 61801

217-333-3570

Email: abe@illinois.edu

Department of Agricultural and Biological Engineering