Samples from Pacific Pile & Marine. Image from claim documents.

PND Engineers last week rebuffed the small boat harbor expansion contractor’s claim that the seafloor was harder than described in bid documents for dredging operations.

Harbor expansion contractor Pacific Pile & Marine notified the borough in July of differing site conditions after experiencing dredging delays and in October estimated the additional labor and equipment costs at about $1 million.

In 2013 PND analyzed the dredge…