Tokyo floodgates to protect from typhoon surges
A hinged crest gate during installation.
A floodwall gate at Harlan, Kentucky.
Tainter gates and spillway.
A roller gate on the Mississippi.
Discharge from a Howell-Bunger valve.
Drum gate diagram
Hinged crest gates at the Scrivener Dam, Canberra. (image at en)
Billwerder Bucht, Hamburg, Germany
Floodgate Amerongen, The Netherlands
Floodgate in Hungary
Floodgate in Ota Ward, Tokyo, Japan.