Drainage Calculator
Calculate drainage requirements for your property. Understand how rainfall intensity, surface area, and soil type affect drainage needs.
Step 1: Surface Details
Understanding Surface Area
Surface area is the total area that will be drained. Larger areas collect more rainwater and require more drainage capacity. Include all impervious surfaces like driveways, patios, and roofs.
Step 2: Rainfall Details
About Rainfall Intensity
Rainfall intensity measures how much rain falls in a specific time period. Higher intensities require more drainage capacity. Check local weather data for your area’s typical rainfall patterns.
Drainage Requirements Results
Required Drainage Capacity
Drainage System Comparison
| System Type | Capacity | Installation Cost | Maintenance | Best For |
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Drainage Capacity Analysis
Drainage Calculation Formula
Q = C × I × A
Where: Q = Runoff (flow rate), C = Runoff coefficient, I = Rainfall intensity, A = Area. This rational method formula helps determine drainage requirements based on surface characteristics and rainfall.
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