Road-Water Harvesting (Floodwater Spreaders)¶

Rainwater & Storage • Est. CapEx: $5 USD • Lifespan: 7–15 Years

Technical Overview¶

A low-tech solution that captures road runoff for agricultural use in semiarid regions. Floodwater spreaders guide runoff from road surfaces to adjacent farmland, increasing soil moisture and crop yields.

Key Specifications & Engineering Parameters¶

Parameter	Specification
Category	Rainwater & Storage
Capital Cost (CapEx)	$5 USD
Power / Energy	100% Gravity / Zero Power
Target Scale	Community Scale
Standard Lifespan	7–15 Years
Technology Maturity	Field Tested
Primary Mechanism	Low curved structures (approx. 30 cm high) built from local materials are placed alongside paved roads to intercept and spread runoff onto fields. Runoff can also be stored in borrow pits or ponds for later use, combining flood control and water harvesting.

Engineering Trade-Offs¶

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Cross-Reference & Interactive Tools¶

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