By U.S. Navy Seabee Museum, Naval History and Heritage Command
June 12
1943: ACORN 2 dissolved. (Used during World War II, an ACORN was a tailored unit designed to carry out the rapid construction and subsequent operation of a landplane and seaplane advance base. Each ACORN had a construction battalion attached to it, as well as trained personnel to operate the control tower, field lighting, aerological unit, transportation, medical, berthing, and messing facilities. A Construction Battalion Maintenance Unit (CBMU) also accompanied each ACORN to maintain the base after the initial construction was completed and the construction battalion had been withdrawn. During the war, ACORNs were sent to such places at Guadalcanal, Espiritu Santo, Green Island, Rendova, Treasury Island, and Majuro.
June 9-25 1952: Operation Crippled Chick
One of the most incredible Seabee feats of the Korean War took place on the small island of Yo Do in the Bay of Wonsan. In communist hands again in 1952, Wonsan was a key supply and transportation center for the enemy. As such, carrier-based aircraft strikes against Wonsan and points deeper in the interior were numerous and constant. Planes were hit by enemy fire daily leaving their pilots with the unhappy choice of either ditching at sea or attempting to land in enemy-held territory. The need for an emergency airstrip was critical and, under the code name Operation Crippled Chick, a detachment of Seabees came to the rescue. Put ashore on Yo Do Island, they were given 35 days to construct a runway. Working under constant artillery bombardment from neighboring enemy positions, they managed to complete the 2,400-foot airstrip in only 16 days. By a prearranged signal, "Steak is Ready," the Seabees signaled that the job was done, and nine damaged aircraft landed on the new field that same day.
June 13
1944: The 16th, 21st, 22nd Naval Construction Regiments (NCR) were inactivated; the 2nd Naval Construction Battalion (NCB) was inactivated.
1966: Approximately 60 Seabees from Construction Battalion Center (CBC) Port Hueneme, California were sent to help fight the fire in the Los Padres National Forest, 35 miles northeast of Santa Barbara.
2008: Lt. Cmdr. Gregory Miller, CEC, relieved Lt. Cmdr. Daniel Stoddard, CEC, as commanding officer, Underwater Construction Team (UCT) 1, Naval Amphibious Base Little Creek, Norfolk, Virginia.
2008: Cmdr. Stephanie Jones, CEC, relieved Capt. Darius Banaji as commander, NCTC, CBC Gulfport Mississippi.
2008: Capt. James Worcester, CEC, relieved Capt. Kelly Schmader as commanding officer, Naval Facilities Expeditionary Logistics Center (NFELC) and as commander, 31st Seabee Readiness Group, Naval Base Ventura County, Port Hueneme, California.
June 15
1944: Operation Forager, as the Marianas campaign in World War II was named, began on June 15, 1944, when 20,000 Marines and Seabees were put ashore on the beaches of Saipan. Seabees of the 121st NCB formed the shore party on the main invasion beach. By June 18, Marines captured Aslito, the main Japanese airfield on Saipan, and that very day, Seabees went to work repairing the bomb damage to the runways. Four days later, the first American fighter planes landed on the strip, and four months later, the Seabees had lengthened and widened the runways so that B-29s could take off for their first bombing of Japan. Japanese troops counterattacked against Aslito airfield and halted the Seabee construction work, but the Seabees grabbed up their arms and held them off. By July 9, Saipan was secured.
1945: The 18th NCB inactivated at Tinian; 45th NCB inactivated at Camp Parks, Shoemaker, California.
1968: Naval Mobile Construction Battalion (NMCB) 74 s second flight advance party of three officers and 35 enlisted men arrived at Camp Shields, Chu Lai, Republic of Vietnam (RVN).
1985: Steelworker 2nd Class (DV) Robert Stethem is killed by terrorists in Beirut, Lebanon following the hijacking of TWA Flight 847. He received posthumously both the Bronze Star and Purple Heart, and was promoted to honorary Master Chief Constructionman on August 24, 2010, in Yokosuka, Japan aboard the USS Stethem, named in his honor.
1991: On the island of Luzon, Philippines, Mount Pinatubo erupts, destroying Clark Air Base and burying Naval Station Subic Bay and Naval Air Station Cubi Point in a thick layer of ash. In the ensuing Operation Fiery Vigil, members of NMCBs 3, 4, 5, and CBMU 302 work to clear the naval facilities. By October 1991, the Seabees moved 251,000 tons of ash from over 50 miles of paved surfaces.
2012: Cmdr. La Tanya Simms, CEC, is relieved by Cmdr. Jeff Kilian, CEC, as commanding officer of Naval Mobile Construction Battalion 4 during a change of command ceremony at Naval Base Ventura County, California.2010: After 672 hours of around-the-clock work, NMCB 7 s Detachment Horn of Africa (HOA) successfully drilled its first freshwater well in the village of Adgia Falima, Dire Dawa, Ethiopia. This was the first of seven hand-pump operated wells scheduled to be drilled in the Dire Dawa and Shinele regions during its deployment.
June 16
1943: ACORN 4 dissolved.
1945: The 138th NCB was inactivated at Camp Parks, Shoemaker, California.
1968: Seabee Team 0808 departed Bangkok, Thailand via government aircraft for the continental U.S. (CONUS).
June 17
1833: USS Delaware was the first ship to enter the first completed U.S. Navy drydock at the Norfolk Navy Yard. William P.S. Sanger, then a civil engineer apprentice, served as resident engineer during construction of the drydock.
1881: In response to a letter of April 12, 1881 from Civil Engineer Benjamin F. Chandler, CEC, U.S. Attorney General Wayne MacVeagh established that the Navy civil engineers were, in fact, officers belonging to the Navy s staff corps, thereby entitled to be retired from active duty and placed on the retired list.
1942: The 7th NCB was commissioned at NCTC Camp Allen, Norfolk, Virginia.
1943: ACORN 3 was dissolved.
1968: The Moreell Wing of the CEC-Seabee Museum was dedicated at Port Hueneme, California. The u-shaped structure, composed of steel Butler buildings, houses the thousands of artifacts and memorabilia collected by Admiral Ben Moreell during his 29-year career in the United States Navy. Most of the souvenirs housed in the wing were collected during World War II when Admiral Moreell became the Chief of the Bureau of Yards and Docks and founded and commanded the Seabees.
1970: NMCB 7 s main body, consisting of 20 officers and 633 enlisted men, departed Chu Lai, RVN for Davisville, Rhode Island.
June 18
1943: The 97th NCB formed at NCTC Camp Peary, Magruder, Virginia.
1946: The 143rd NCB was inactivated at Samar Island, Philippines.
1968: In support of the U.S. Navy's Civic Action Programs, Seabee Team 0911 returned to CONUS via C-118 aircraft, upon the completion of a six-month deployment to northern Thailand.
2015: Lt. Cmdr. Justin Spinks, CEC, relieved Lt. Cmdr. Jason Fahy, CEC, as commanding officer of UCT 2 aboard Naval Base Ventura County, California.