Naval Mobile Construction Battalion 4 is a Navy Seabee battalion homeported at Port Hueneme, California. Nicknamed the "Pioneers", it is the first of the many CBs created after the original three. The
4th NCB WWII insignia
Ghost Battalion colors at Quang Tri. The Seabees had 11,000 graves to move in order to construct that airfield.
The 2,040' "Liberty" bridge built by CB 4 over the Song Thu Bon river in 1967. It was built to get tanks into Arizona Territory and was attacked and burned multiple times.
Special Forces Command inspects MCB 4 construction at the Con Thien Special Forces camp. Photo released by Seabee PAO Office Washington DC
Amphibious Construction Battalion ONE is an amphibious construction battalion in the United States Navy based in Coronado, California, and last in type unit. Amphibious Construction Battalion TWO was
104th NCB WWII insignia (Seabee Museum)
Yo Do Island ACB 1 refueling Corsairs 15 July 1952 (USN)
Operation Restore Hope Seabees from ACB 1 put the finishing touches on a helopad at the U.S. Embassy compound December 1992. (NARA)
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 (4 Apr 2003) It was the first time the ELCAS/M (length 1,400-feet) was assembled in a combat operation.