The 1905 vintage 1000 pound cast iron gate valve actuator from the upper gatehouse of the New Croton Dam has been donated by the NYC DEP to NYS Parks for use as an exhibit at the Keepers House. The hand cranked mechanism that used to control the effluent gates at the dam was picked up from the current Croton gatehouse in Yorktown on Wednesday Dec. 9, to be processed for safe public display by the Peebles Island restoration office of NYS Parks. Once installed, visitors to the Keepers House will be able to get a closeup look.