|Max. length||20 km (12 mi)|
|Max. width||14 km (8.7 mi)|
|Surface area||220 km2 (85 sq mi)|
|Average depth||15 m (49 ft)|
|Islands||Kudaka Island, Tsuken Island|
|Settlements||Uruma, Kitanakagusuku, Nakagusuku, Nishihara, Yonabaru, Nanjō|
Nakagusuku Bay (中城湾 Nakagusuku-wan ) is a bay on the southern coast of Okinawa Island on the Pacific Ocean in Japan. The bay covers 220 square kilometres (85 sq mi) and ranges between 10 metres (33 ft) to 15 metres (49 ft) deep. The bay is surrounded by the municipalities of Uruma, Kitanakagusuku, Nakagusuku, Nishihara, Yonabaru, Nanjō, all in Okinawa Prefecture.
American soldiers nicknamed the bay Buckner Bay, after General Simon Bolivar Buckner, Jr. Naval Base Buckner Bay was set up in the bay after Okinawa was finally secured by US Forces in June 1945. It consisted of the anchorage and repair & depot ships, as well as various onshore facilities. The base was maintained into the immediate postwar period, despite the destruction wrought by Typhoon Louise in October 1945, which among other things grounded fifteen merchant cargo ships being used to supply US Forces, some beyond recovery. Three USN Destroyers were also grounded beyond hope of salvage, and over 200 various other US military boats, including 6 tank and truck amphibious landing craft, various special purpose boats, patrol boats, and amphibious landing craft were grounded, severely damaged, or destroyed altogether. Eighty percent of the buildings in the bay were completely wiped out while over 60 aircraft then present at local airstrips were damaged.
In the present day The Buckner Bay - White Beach Naval Port Facility is located on the southernmost tip of the Katsuran Peninsula. The bay is also referred to as Katchin Wan. The White Beach Navy Ammunition Pier and White Beach Army Pier extend into Nakagusuku Bay. Tatsu Kuchi, the main entrance into the bay, is located 18 nmi north-northeast of the southernmost tip of Okinawa. White Beach is also located about 14 nmi northeast of Naha. Numerous large and small islands, reefs, and shoal waters bracket the entrance.
Tengan Pier (26°24.2'N 127°51.1'E) is located at the western end of Kin Wan Bay. Kin Wan Bay is on the east central side of Okinawa between Kin Saki (Kin Point) and the Katsuren Peninsula.
There are two piers at White Beach. Navy Pier is under the control of the U.S. Navy Commander Fleet Activities Okinawa (CFAO) and is also used by the Military Sealift Command (MSC) as a back-up ordnance-handling pier. The coordinating authority for U. S. Navy vessels for both piers is Buckner Port Control, White Beach.
Primarily U.S. Navy vessels and Japanese Self Defense Force minesweepers use the Navy Pier. The pier is approximately 2,400 ft (732 m) long. In total, the dimensions consist of a 40 ft (12.2 m) wide by 1,220 ft (372 m) long earth-filled causeway and a 39 ft (11.9 m) wide by 386 ft (117.8 m) long structural causeway that is connected to the main pier. East Navy Pier for berthing is 790 ft (240.8 m) and the West Navy Pier for berthing is 810 ft (246.9 m). The Navy Pier has reinforced concrete pilings with a steel concrete surface. The deck height is 10 ft (3.1 m). Beyond the pier are two 25 ft (7.6 m) by 125 ft (38.1 m) mooring dolphin decks. Ships can moor bow in or bow out at these berths.
The Army Pier is controlled by the U.S. Army and used primarily for the loading and discharge of fuel. U.S. Navy vessels using the Army Pier do so with the understanding that the pier might have to be vacated with little notice when fuel handling evolutions are scheduled or at the request of the U.S. Army Harbor Master.
The Army Pier is an asphalt-surfaced causeway connecting to a steel pier reinforced with concrete and with a solid facing to the sea floor. The approximate total dimensions of the pier and the causeway are 1,224 ft (373 m) long by 100 ft (30.5 m) wide. The portion of the pier for berthing is approximately 525 ft (160 m) long with a deck height of 10 ft (3.1 m). Ships are required to be bow in at the Army Pier.
The Naha Pilot Association provides pilots. The Association has four pilots. Six hours notice must be given for scheduling a pilot and to allow time for the pilot to travel from Naha to Buckner Bay. Three Japanese commercial tugs rated at 3,200 hp are available for White Beach. A pilot is mandatory for U.S. Navy vessels berthing at the White Beach piers but is not required when anchoring. Pilots will not normally board ships with northerly winds greater than 30 kt or southerly winds greater than 26 kt. Wave heights greater than 4.9 ft (1.5 m) make it too difficult to get on or off the ship. All pilots possess adequate English language ability to convey helm and engine orders. Additionally, a qualified Japanese speaking dockmaster will be stationed pierside to assist in docking evolutions. The pilot and working tug primarily use Channel 13 VHF-FM but can be initially contacted via Channel 16 VHF-FM. The pilot pickup point is in the vicinity of 26°14'N 127°55'E. If required, a second tug will normally meet the ship at 26°16.4'N 127°54.3'E.
Anchorage and berthing assignments for Navy vessels are made by the Navy Port Control Officer located at White Beach on a 24-hour a day basis. However, arrival and departure at both piers is recommended between the hours of 0800 and 1600, except in an emergency. Navy Port Control can be contacted via Channel 16 VHF-FM or on 2716 kHz USB. The local phone numbers for Port Operations are 622-1371/1362. The OIC White Beach Port Operations can also be contacted by cell at 090-9789-9623.
No repair facilities are located at White Beach.
Tengan Pier is the primary U.S. military ammunition cargo operations site in Okinawa. Ammunition and explosive handling operations are conducted on the pier from 0800 until 2200. Tengan pier has limited shelter from the weather. Normally, only daylight arrival is permitted. Departure is permitted at any time. Ships normally tie up bow out. Anchorage berths can be coordinated through the ship's agent or the local Military Sealift Command Office. Pilot rendezvous point is 26°25'N 127°58'E. Five tugs rated at 3,200 hp are available in Kin Wan Bay. The phone numbers for the MSC Office are DSN 315-648-7685/6 or commercial 098-859-8204.
Tengan Pier is 82 ft (m) wide and 806 ft (m) long with reinforced concrete solid construction. The pier can accommodate two ships with one on each side.
Tengan Pier is connected to land by a 35 ft (m) wide by 1,300 ft (m) long causeway. Ship docking should be self-sustaining. There are no electric shore power outlets, CHT lines, or fuel lines for bunkering.
Approximately 95% of the MSC ships go to White Beach and Tengan Pier because of depth restrictions at the Port of Naha.
No repair facilities are available in the vicinity of Tengan Pier.
- USS Nestor (ARB-6)
- USS Ulysses (ARB-9)
- USS Pennsylvania (BB-38)
- 1940–49 Pacific typhoon seasons: Typhoon Louise
- List of shipwrecks in October 1945: 9 October (Incomplete)
- United States Forces Japan
- Yaeyama class minesweeper
- Naval Base Buckner Bay 1945 (Photo gallery) - REMEMBERING OKINAWA HISTORY website
- TYPHOON LOUISE HITS OKINAWA 9 OCTOBER 1945 (Photo gallery) - REMEMBERING OKINAWA HISTORY website
- Typhoons and Hurricanes: Pacific Typhoon at Okinawa, October 1945 - DEPARTMENT OF THE NAVY—NAVAL HISTORY & HERITAGE COMMAND
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