Dam/levee: earthworks volume

Trapezoid cross-section → cubic metres of soil and cost estimate

Parameters

Dam length, m

Crest width, m

Dam height, m

Slope ratio (1:X)

Work price, UAH/m³

Volume = trapezoid area × length. Base width = crest + 2×slope×height. Pond dam slopes are usually 1:2–1:3 (steeper risks slippage). Add 10–15% for soil compaction/settlement. Keep the crest 0.5–1 m above maximum water level. This is a preliminary estimate — a specialist must design hydraulic structures (spillway/siphon, seepage, reinforcement).

Result

Base width: 15.5 m
Cross-section: 23.1 m²
Soil volume: 1 850 m³
+12% compaction: 2 072 m³
Works estimate: 248 640 UAH