In Nevada, farmers dedicate more than 90% of the state’s irrigated acres to alfalfa production, relying on precise water distribution systems to keep operations efficient and productive. Central to these systems are headgates that control water flow and direct it through irrigation ditches to the fields. To ensure these gates can withstand constant exposure to water and the elements, Roger Lambert Construction, a trusted regional contractor specializing in irrigation infrastructure, turned to the durability and reliability of hot-dip galvanizing (HDG).

The original headgates used across these systems were fabricated with A36 steel and coated with paint. While cost-effective initially, the painted coating failed within three years, breaking down under constant submersion and exposing the steel to corrosion. This resulted in increased maintenance, frequent replacements, and higher costs for both farmers and the construction team. Each headgate is fabricated from A36 eighth-inch plate, flat bar, quarter-inch angle, and three-quarter solid rod, weighing approximately 200 pounds. The design consists of a durable outer frame and a sliding plate mechanism that allows operators to raise or lower the gate with a rod-and-lever system. During installation, the gates are set into the concrete walls while the concre1te is poured, ensuring that water pressure does not distort or shift the gates over time. Recognizing the need for a more sustainable and cost-efficient solution, Roger Lambert Construction partnered with their local galvanizer to explore hot-dip galvanizing. The metallurgical bond formed during the galvanizing process provided complete and uniform coverage, including the critical internal and hard-to-reach areas of the gates. Unlike paint, the zinc coating offers a sacrificial layer of corrosion protection that resists wear from constant water exposure. The results have been dramatic, with galvanized coatings delivering a lifespan two to three times longer than paint in submerged and high-moisture environments. This extended durability reduces the need for touch-ups and replacements, saving significant labor and material costs over time. Additionally, the metallurgical bond formed during the galvanizing process enhances structural integrity, providing complete protection for the steel without compromising the function or performance of the gates. By transitioning from painted coatings to galvanizing, Roger Lambert Construction has delivered a superior product that provides decades of reliable performance to Nevada’s agricultural community. The change not only minimizes long-term costs but also ensures that irrigation systems remain efficient and dependable — a critical factor for farmers who depend on consistent water delivery to maintain healthy alfalfa crops.