Battleship row was constructed off the southeastern side of Ford Island to accommodate the Pacific Fleet’s eight massive battleships that came to Pearl Harbor. Due to Ford Island’s location, being in the middle of Pearl Harbor, where the water was the deepest, it could accommodate the largest of the Battleships. This also allowed the Navy to double up Battleships, side by side, tied to a large Mooring Quays just off the shore of Ford Island. For access, wooden planks spanned between the two Battleships and Ford Island. Unfortunately, this doubling up of the ships made them easier targets for an enemy attack. However, at the time, the US Navy felt the Battleships were safe from enemy attacks because the harbor was too shallow for torpedoes, and no one dreamed of an aircraft carrier attack on Hawaii. Unknown to the US military, the Japanese Navy had modified their torpedoes for shallow water attacks and tested them secretly for over a year in Japan.