The derelict dock that washed up on agate beach from the Japanese tsunami will be dismantled starting Tuesday July 31st. Chris Havel, with Oregon Parks, says Ballard Diving and Salvage will cut it apart on the beach. That will minimize the risk of invasive species contaminating the beach. The pieces will be trucked to Vancouver where they'll be taken apart and as much of the material as possible will be recycled. It’ll cost $84,000 and take three to seven days to complete.