Crest Gates

Crest gates are bottom hinged gates used for precise water level control. They are typically hydraulically operated to allow for opening during power outages in flood events. The hydraulic cylinders may be located either below the gate or at each end of the gate atop the adjacent piers depending on site conditions. Rugged rubber seals are provided at each end and along the bottom of the gates to efficiently minimize leakage.

Top Mounted Cylinders	Cylinders Below

North Canadian River Project in Oklahoma City, OK Eastern Avenue • (3) 97' x 13' hydraulically   operated crest gates Western Avenue • (6) 48' x 10' hydraulically   operated crest gates May Avenue • (6) 48' x 10' hydraulically   operated crest gates

Allens Falls Hydroelectric Project, Parishville, NY • (2) 60' x 9' hydraulically   operated regulating crest gates