Flap gates completely close out water and open on a "flap" hinge. Muted tide gates can be used near natural marshes, and Morris said they essentially allow a relatively natural in-and-out flow of ...

POWAY — A piece of rope “inexplicably” became lodged in a valve separating a 10-million gallon reservoir from a storm drain in late November, causing a nearly week-long,… ...

Designed for subsea installation, the transmitters analyze the absolute water and air pressures within the flap gates with a range of 1.5 to 90 psia (0.1 to 6 bar). The pressures within the flap gates ...

WEST HAVEN — A $3.9 million project that will bring a new tide gate system and pedestrian bridge to the Cove River will begin this week, according to city officials.