Also, the crashing surf on the Washington shore is not a hospitable habitat for species native to placid pot waters in Japan, experts say.
So far, there has been no sign any of the Japanese species on the Oregon dock has established in Oregon, Chapman said. However, there is no formal monitoring going on.
The Oregon dock measured 66 feet long, 19 feet wide and 7 feet high and weighed 165 tons before it was cut up and hauled away. Volunteers scraped off 2 tons of seaweed and creatures clinging to it and ran blowtorches over the surface to sterilize it.
Chapman said a flooded stream stopped them from their first attempt at reaching the Washington dock. But they returned the next day, wearing dry suits provided by the National Park Service, and were helped across by a search and rescue team. They used a rope to descend to the beach. The dry suits proved helpful on the beach, where they were dodging 16-foot waves.
"The dock was being pulverized on the rocks there," Chapman said. Styrofoam was coming out where the concrete had fractured.