Replacement of Floating Caisson Gates, Sliding Caisson Gates and Mitre Gates for Various Dock in ND (MBI). These gates are typically shaped like segments of a circle and are designed to rotate from a vertical position to a horizontal position across the waterway, sliding caisson gates move horizontally along rails or tracks instead of floating on the water's surface. gates are essential components of water infrastructure, contributing to flood management, navigation, water supply, and environmental protection. Their scope extends to various engineering projects where controlled water flow is crucial for safe and efficient operations. The choice between the two types of gates depends on factors such as the waterway's characteristics, engineering requirements, and the specific objectives of the project