Balch Camp Afterbay – ROV Inspection

January , 2011

The existing slide gate valve used to control the water level in the afterbay area was not closing, causing an unplanned release of water. An ROV was used to perform an inspection of the valve and inside of the trashrack structure. The ROV was equipped with a forward looking sonar head that would allow the operators to get a picture of the obstruction from outside the trashrack at a distance safe for the ROV to aviod the flow.