Waterman Heavy Duty Sluice Gates have been successfully used in a wide variety of applications, including municipal water works and treatment facilities, flood control projects, reservoirs, and fish hatcheries. Gate shapes include square or rectangular with square, rectangular or circular opening, and can be furnished with standard flanged back or extended flanged back frames. All units feature adjustable corrosion-resistant side wedges and corrosion-resistant malleable seat facings locked in dovetail grooves. All mating or sliding surfaces are fully machined including close tolerance tongue and groove guides. All assembly hardware is of corrosion-resistant material.