Swale Calculator
Calculate the optimal swale dimensions for rainwater harvesting and stormwater management. Determine size, capacity, and runoff calculations for your landscape project.
Step 1: Swale Dimensions
Understanding Swale Design
Swales are shallow, vegetated channels designed to capture, convey, and infiltrate stormwater runoff. Proper sizing ensures effective water management and prevents erosion.
Step 2: Rainfall & Drainage Area
About Swale Capacity
Swale capacity depends on dimensions, soil infiltration rate, and rainfall intensity. Proper design ensures the swale can handle expected runoff volumes without overflowing.
Swale Capacity Results
Total Swale Capacity
Soil Type Infiltration Comparison
| Soil Type | Infiltration Rate (in/hr) | Time to Empty | Safety Factor |
|---|
Runoff Analysis
Swale Design Formula
Swale Capacity = Length × Width × Depth × Conversion Factor
To calculate swale capacity: Multiply length (ft) × width (ft) × depth (ft). Runoff volume = Drainage area × Rainfall depth × Runoff coefficient.
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