What tips should I keep in mind?

Systematic tile drainage typically returns investment within 5-8 years through higher yields. Use GPS mapping to plan layout — follow natural drainage patterns. Install at 3.5-4 ft depth for optimal root zone drainage.

Drainage Tile Calculator

Calculate tile spacing, depth, and capacity for subsurface drainage systems in agricultural fields.

Results

Visualization

How It Works

Subsurface drainage removes excess water from the root zone, allowing earlier planting and better root development. Tile spacing depends on soil permeability — clay soils need closer spacing (30-40 ft) while sandy soils can be wider (80-100 ft). Standard drainage coefficient is 3/8 to 1/2 inch per day.

The Formula

Tile Spacing based on soil hydraulic conductivity and drain depth
Total Feet = (Field Area in sq ft) ÷ Spacing
Cost = Total Feet × $/foot installed

Variables

Spacing — Distance between parallel tile lines (30-100 ft depending on soil)
Drainage Coeff. — Rate of water removal in inches/day (0.375-0.50 typical for crops)
Depth — Installation depth (3-4 ft typical, deeper for heavier soils)

Example

Silty clay loam, 80 acres, 50-ft spacing: 69,696 ft of tile (13.2 miles) at $3.50/ft = $243,936 ($3,049/acre).

Tips

Systematic tile drainage typically returns investment within 5-8 years through higher yields.
Use GPS mapping to plan layout — follow natural drainage patterns.
Install at 3.5-4 ft depth for optimal root zone drainage.
Consider controlled drainage structures to manage water table height for conservation.