Amphibious Construction Battalion 2

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Amphibious Construction Battalion 2
ACB-2 Insignia
Active1942 – present
CountryUnited States
Garrison/HQJEB Little Creek
Motto(s)"Can Do"
"We Build – We Fight"
Korean War
Vietnam War
Operation Desert Storm
Operation Iraqi Freedom
Operation Unified Response
Captain Jeffrey D. Lengkeek

Amphibious Construction Battalion TWO (abbreviated as ACB 2, or PHIBCB 2) is an amphibious construction battalion in the United States Navy based in Little Creek, Virginia. Amphibious Construction Battalion ONE is its sister unit based in Coronado, California.


105th NCB Unit insignia. The original version had "The First in the Philippines" in the center.[1] (Seabee Museum)

PHIBCB TWO combines the small craft expertise of the surface navy with the construction capabilities of the Naval Construction Force. We support Commander, Naval Beach Group Two in amphibious force projection with fully trained, combat ready forces.


On 15 July 1958, Amphibious Construction Battalion TWO (PHIBTWO) assist Marines with landing at Beirut, Lebanon. Seabees with PHIBTWO supplied causeway teams to provide pontoons for troops, vehicles and supplies to pass to and from LCUs.(Seabee Museum)
Tektite I assembled by ACB 2 during 1969. (NURP)
US Navy 030404-N-1050K-023U.S. Seabees from ACBs 1 and 2 place a deck section in the assembly of the Elevated Causeway System-Modular (ELCAS (M)) at Camp Patriot, Kuwait (Apr 4, 2003). It was the first time the ELCAS/M (length 1,400-feet) was assembled in a combat operation.[2]
US Navy 050904-N-7638K-035 Vehicles and equipment assigned to ACB-2 on the beach at Biloxi, Miss. in the 2005 relief effort to Hurricane Katrina
ACB 2's two 777 Manitowoc cranes are the largest in the US military with a 200-ton lifting capacity at JOINT EXPEDITIONARY BASE LITTLE CREEK, VA. in 2018. (USN)

ACB 2 has its beginnings in World War II. It started out as the 105th Naval Construction Battalion. She was commissioned 24 July 1943 at Camp Peary.[1] From there she was sent to Camp Parks, in California, and then to Advance Base Depot Port Hueneme. While there the battalion became part of movie history by providing the men and equipment for staging portions of the filming of The Fighting Seabees.[3] At Port Hueneme the 105th boarded the United States Army Transport Sea Devil bound for New Guinea via Townsville, Australia.[1] There, she would join the 7th Fleet at Milne Bay and her sister battalion the 104th.[4] At Milne, the primary tasks were the construction of an Amphibious Training Center, the battalion's camp, a Liberty ship pier, and a tank farm on Swinger Bay (adjacent the Coral Sea).[1] The Seabee's historian William Huie states that if all the warehouses built by the 105th at Milne were combined it would create a structure 40' x 75,000' (15 miles).[4] The battalion also assisted the Army with the construction of Turnbull Field on Stringer bay.

The battalion also had several detachments. One went to Hilimoi Bay to help the 91st CB build a hospital for shipment to a forward site.[5] Another 150 men built a second sawmill to augment the one being run by the 84th CB[5] at Milne Bay. Of note are two 105 specialized details of divers that traveled over a hundred miles on undisclosed missions.[5] Milne Bay is one of the most malaria infested regions of the world and the 105th was there from January to October 1944. That month, several LSTs arrived[5] to embark the battalion for Island "X". En route they laid up a few days at Hollandia. On 24 October 1944, or D-plus 4, the battalion landed at Tacloban, Leyte. The 105th was the first entire Seabee Battalion to land in the Philippines. Also landing at Tacloban were the 75th CB and the 1024 CBD[5] (they all were part of the 12th Construction Regiment). The 104th would be sent there too.[4] The following day, 400 men were sent to Anabong Point.[6] 12 November saw the rear echelon arrive at San Pedro Bay, Leyte, from Milne Bay.[6] On that same day, the OIC at Anabong Point sent a detachment to San Antonio, Northern Samar. Before the war was over there would be additional detachments sent to Talosa, Guiuan, Balingaga, and Osmena.[6] The 105th's cruisebook states "the 105th is a battalion distinguished only by its normalcy." In the Philippines, she built an airfield, roads, barracks, camps and water tanks. During the first 31 days she came under air attack 138 times.[4] On V-J Day, there were 32,000 Seabees in Subic Bay including those in the 105th.[5] The battalion made itself a reputation known as far back as Australia for "moonlight acquisition" activities.[1]

During WWII there were five battalions tasked with pontoons, barges and the building of ship to shore causeways: CBs 70, 81, 111, 128, and 302.[7] The 105th Naval Construction Battalion was recommissioned 22 January 1947 at Little Creek, Virginia, and was placed under the operational control of Commander, Amphibious Training Command, U.S. Atlantic Fleet. At this time, the battalion "absorbed the duties and materials of the old Pontoon Training Unit of COMPHIBTRALANT".[8] When Naval Beach Group Two was established in 1948, the 105th NCB became a component of that command. In October 1949, the 1st NCB was recommissioned at Little Creek also. The Navy changed CB designations that year and they both became Mobile Construction Battalions MCBs. This lasted less than a year for the 105th because the battalion was re-designated Amphibious Construction Battalion 2 (PHIBCB 2) in 1950. By the time the Korean War broke out the Naval Construction force had been reduced to 2,800 men,[9] MCB 1, ACB 1, and ACB 2. That quickly changed by December as the force was rapidly expanded.

From 1972 to 1975, ACB 2 was a component of Naval Inshore Warfare Command following the decommissioning of Naval Beach Group 2. However, ACB 2 once again became a component of Naval Beach Group 2 when it was recommissioned in 1975.

Since World War II, ACB 2 has distinguished itself in multiple operations including:

Tektite I[edit]

On 28 January 1969 a detachment from Amphibious Construction Battalion 2 augmented by an additional 17 Seabee divers from both the Atlantic and Pacific fleets as well as the 21st NCR began the installation of the Tektite habitat in Great Lameshur Bay at Lameshur, U.S. Virgin Islands.[11] The Tektite program was funded by NASA and was the first scientists-in-the-sea program sponsored by the U.S. government.[12] The Seabees also constructed a 12 hut base camp at Viers that is used today as the Virgin Islands Environmental Resource Station.[13]

Unit awards[edit]

ACB 2 has received several unit citations and commendations. Members who participated in actions that merited the award are authorized to wear the medal or ribbon associated with the award on their uniform. Awards and decorations of the United States Armed Forces have different categories, i.e. Service, Campaign, Unit, and Personal. Unit Citations are distinct from the other decorations. The following unit awards are 2's:[14][15] ACB 2 was the first CB awarded the Joint Meritorious Unit Award. Also receiving the award were 100 men from ACB 1 that were attached to ACB 2 at that time.

Campaign and Service Awards

The Battalion also qualified for the Golden Anchor Award for retention excellence in FY 01 and FY 03.

With over 1,100 active duty and reserve men and women, Amphibious Construction Battalion TWO provides the U.S. Atlantic Fleet with the ship-to-shore link so vital to success in amphibious operations.

See also[edit]


  1. ^ a b c d e f g 105th Naval Construction Battalion, Bureau of Yards and Docks, Department of the Navy 1946, Seabee Museum, Port Hueneme, CA. [1]
  2. ^ Navy Elevated Causeway System to Lend Big Hand to Big Operation Story Number: NNS030424-10Release Date: 4/24/2003, story By Journalist 1st Class Joseph Krypel, Camp Patriot Public Affairs, U.S.Navy website [2]
  3. ^ 105th Naval Construction Battalion, 1946, Technical Library, Bureau of Yards and Docks, Department of the Navy, p. 13 [3]
  4. ^ a b c d From Omaha to Okinawa, William Bradford Huie, Naval Institute Press, Annapolis, Maryland, 1999, p. 196
  5. ^ a b c d e f [Naval History and Heritage Command website, Building the Navy's Bases in World War II, Building the Navy's Bases, vol. 2 (part III, chapter 26)., GPO Washington DC, 1947, Published: Thu 15 December 2016]
  6. ^ a b c Seabee Unit Histories, NMCB 62 Alumni website
  7. ^ U.S. Marine Corps WWII Order Of Battle, Gordon L. Rottman, Greenwood Press, 88 Post Road Weat, Westport, CT, 2002, p. 31 ISBN 0-313-31906-5
  8. ^ 1961 Criusebook ACB 2
  9. ^ U.S.Navy Seabee BMR, p.1.8.0
  10. ^ " Seabee History: Southeast Asia", NHHC online reading room, published 16 Apr 2015 [4]
  11. ^ Seabeemagazine online
  12. ^ Underwater 360 online magazine
  13. ^ St. John Historical Society, P.O. Box 1256, St. John, US Virgin Islands, 00831, Crystal Blue View of Tektite II [5]
  14. ^ US Navy Awards, Chief of Naval Operations, 2000 Navy Pentagon, Washington, D.C. 20350 [6] Archived 27 January 2018 at the Wayback Machine
  15. ^ List of Award Abbreviations, Chief of Naval Operations, 2000 Navy Pentagon, Washington, D.C. 20350 [7] Archived 31 January 2017 at the Wayback Machine
  16. ^ HSM Approved Operations – 2015 -1005.pdf, Dept. of Defense

External links[edit]