Background (Reference/Theory)

The background theory for InfoDrainage includes a range of procedures and formulas that can be used in concert to simulate the effects of site runoff, pollutant generation, hydrology routing and hydraulic attenuation.

Click the links below for detailed information about these topics.

• Manning Formula
• Colebrook-White Formula
• Rainfall Map
• RED (Rainfall) File Format
• Unit Hydrograph
• Index Flood and Adjustment for Return Period
• Runoff Generation
  • Green Roof Runoff Method
  • Time of Concentration
  • Time Of Concentration Calculator
    • Friend's Equation
    • Alameda Method
    • Bransby Williams Method
    • Izzard's Formula
    • Kerby's Equation
    • Kinematic Wave
    • Kirpich's Equation
    • US Federal Aviation Authority
    • TR-55 Methods
  • SCS
    • Curve Number Calculator
  • Santa Barbara Urban Hydrograph
  • Time Area Diagram
  • UK Unit Hydrographs
  • FSR Unit Hydrograph
  • FEH Unit Hydrograph
  • ReFH Unit Hydrograph
  • ReFH2 Unit Hydrograph
  • Laurenson
  • Simplified Modified Rational Method
  • Foul
    • Total Discharge Units Calculator
    • Flow per Dwelling Calculator
• MicroDrainage File Support
  • MDX File Format
  • Storage Structures
  • Flow Controls
  • MDSX File Format
  • SRCX / CASX File Formats
• Analysis
  • Analysis of Junctions and Connections
  • Analysis of Stormwater Controls
  • Rainwater Tank Analysis
  • Simulation Health
• Language Translation
  • Translation Administrator
  • Units Translation
• Guidance on Conductivity Rates