| Naval Construction Battalions | |
|---|---|
 The Seabee logo | |
| Founded | 1942 |
| Country |  United States |
| Branch |  United States Navy |
| Type | Expeditionary Forces |
| Role | Military engineering |
| Size |
|
| Nickname(s) | Seabees |
| Motto(s) |
|
| Colors |  United States Navy |
| Mascot(s) | Bumblebee |
| Anniversaries | December 28, 1941 (1941-12-28) formation requested, March 5, 1942 (1942-3-5) formation authorized |
| Engagements | |
| Website | https://www.necc.usff.navy.mil/seabees/ |
| Commanders | |
| Notable commanders | Admiral Ben Moreell |
United States Naval Construction Battalions, better known as the NavySeabees, form theU.S. Naval Construction Forces (NCF). The Seabee nickname is aheterograph of the initial letters "CB" from the words "Construction Battalion".[1] Depending upon context, "Seabee" can refer to all enlisted personnel in the USN's occupational field 7 (OF-7), all personnel in the Naval Construction Force (NCF), or Construction Battalion. Seabees serve both in and outside the NCF. During World War II they wereplank-holders of both theNaval Combat Demolition Units and theUnderwater Demolition Teams (UDTs). The men in the NCF considered these units to be "Seabee".[2] In addition, Seabees served as elements of Cubs, Lions, Acorns and theUnited States Marine Corps.[3] They also provided the manpower for the top secret CWSFlame Tank Group. Today the Seabees have many special task assignments starting withCamp David and the Naval Support Unit at theDepartment of State. Seabees serve under both Commanders of the Naval Surface Forces Atlantic/Pacific fleets as well as on many basePublic Works and USN diving commands.
Naval Construction Battalions were conceived of as replacements for civilian construction companies in combat zones after the attack onPearl Harbor. At the time civilian contractors had roughly 70,000 men working U.S.N. contracts overseas. International law made it illegal for civilian workers to resist an attack. Doing so would classify them asguerrillas and could lead tosummary execution.[4] The formation of the Seabees amidst the aftermath of theBattle of Wake Island inspired the backstory for the World War II movieThe Fighting Seabees. They also feature prominently in the wartime musical drama (and subsequent film)South Pacific.
Adm.Moreell's concept model CB was aUSMC trained military equivalent of those civilian companies: able to work anywhere, under any conditions or circumstances.[5] They have a storied legacy of creative field ingenuity,[6] stretching fromNormandy andOkinawa toIraq andAfghanistan. Adm.Ernest King wrote to the Seabees on their second anniversary, "Your ingenuity and fortitude have become a legend in the naval service."[7] They were unique at conception and remain unchanged from Adm. Moreell's model today. In the October 1944 issue ofFlying, the Seabees are described as "a phenomenon of WWII".[8]
CB Conceptual Formation
In the 1930sBureau of Yards and Docks (BuDocks) began providing for "Navy Construction Battalions" (CB) in contingency war plans.[9] In 1934, Capt. Carl Carlson's version of the CB was approved byChief of Naval Operations[10] In 1935,RADM. Norman Smith, head of BuDocks, selected Captain Walter Allen,War Plans Officer, to represent BuDocks on the War Plans Board. Capt. Allen presented the bureau's CB concept with the Board including it in theRainbow war plans.[10] The Seabees named their first training center for Capt. Allen.[11] A criticism of the proposal was CBs would have a dual command; military control administrated by fleetline Officers while construction operations would be administrated byCivil Engineer Corps officers.[10] Additional criticisms were no provisions for themilitary organization ormilitary training necessary to provide unit structure,discipline, andesprit de corps. In December 1937, RADM.Ben Moreell became BuDocks Chief and the lead proponent of the CB proposal.[10]
In 1941, the Navy and BuDocks decided to improve project oversight of civilian contractors by creating "Headquarters Construction Companies".[10] These companies would have 2 officers and 99 enlisted, but would do no actual construction.[10] On 31 October 1941, RADM.Chester Nimitz, Chief of theBureau of Navigation, authorized the formation of the 1st Headquarters Construction Company.[10] Recruiting began in November whileboot training began7 December 1941 atNaval Station Newport.[10] By 16 December, four additional companies had been authorized, but Pearl Harbor changed everything.[10]
The Seabeeskillset became multi-faceted with all advancedmilitary training being USMC instruction. That training led to CBs being tasked asUSMC Pioneers (Shore party)[12] in multiplelandings. They added pontoondevelopment,fabrication, and combat utilization.[13] The military training added frontline combat with both the Marine Corps and the Army during WWII and the Marines andArmy Special forces duringVietnam. It also led to combat asmachine gunners on USNLCVP andPT boats during WWII. On the construction side of their toolbox the NCF CBs were formed with skilledtradesmen making the NCF competent in all types of vertical and horizontal civil construction as well as the associatedengineering.[14] The newly formed Naval Construction Force (NCF)toolbox quickly focused onairfield andharborconstruction. The toolbox was expanded to includeunderwater construction,demolition, as well as the related combat applications used by the Seabees that comprised the NCDU's andUDTs. The toolbox was further expanded by the creation ofPublic works units to maintain the facilities they constructed. In additionmosquito/malaria control was added to their Public works skillset. The NCF added traditionalfleet salvage,repair, and maintenance as needed.Combat engineering was added to the toolbox when CBs were transferred to the Marine Corps as elements of USMC engineering regiments. War demands addedstevedoring to the toolbox both in USMCassault operations and at forward operating facilities.Weapons development andmanufacture were added by theUSAChemical Warfare Service.Polarpetroleum exploration and construction were specialties that were also added. Postwar theNational Science Foundation would take advantage of those skillsets. Ingenuity and resourcefulness were tools they became famous for.[15][16] Postwar assignments with theCIA andState Department added further to the toolbox inelectronic fields related tonational security.
Their officialmotto is "We build, we fight." The NCF also adopted the motto "Can Do" as the force believed it could do anything it was tasked with. The Seabees boasted of this by posting signs reading: "The difficult we Can Do now, The impossible takes a little longer".[17][18]
On 28 December 1941, Adm. Moreell requested authority to commission three Naval Construction Battalions. His request was approved on 5 January 1942 byAdmiral Nimitz.[10] The 1st HQ Construction Company was used to commission the 1st Naval Construction Detachment, which was assigned toOperation Bobcat.[20] They were sent toBora Bora and are known in Seabee history as "Bobcats".[20]
Concurrently, the other requested companies had been approved. BuDocks took Companies 2 & 3 to form the 1st Naval Construction Battalion at Charleston, South Carolina. HQ Companies 4 & 5 were used for the 2nd CB.[10] All four companies deployed independently. CBs 3, 4, & 5 were deployed the same way.[21] CB 6 was the first battalion to deploy as a Battalion.[21]
Before all this could happen, BuDocks had to address the dual command issue.Naval regs stated unit command was strictly limited toline officers. BuDocks deemed it essential that CBs be commanded byCEC officers trained in construction. TheBureau of Naval Personnel (BuPers) was strongly opposed. Adm. Moreell took the issue directly to theSecretary of the Navy,Frank Knox. On 19 March 1942, Knox gave the CEC complete command of all NCF personnel. Almost 11,400 would become CEC during WWII with 7,960 doing CB service. Two weeks earlier, on 5 March all CB personnel were officially named "Seabees".
The first volunteers were tradesmen that received advanced rank for their trade skills. This resulted in the Seabees being the highest-paid group in uniform.[22] To recruit these men, age and physical standards were waived up to age 50. Until November 1942 the average Seabee was 37, even so, all received the samephysical training.[23] In December,FDR ordered theSelective Service System to provide CB recruits. Enlistees could request CB service with a written statement certifying that they were trade qualified.[1]: 136 This lasted until October 1943 when voluntary enlistment in the Seabees ceased until December 1944.[1]: 136 By war's end, 258,872 officers and enlisted had served in the Seabees. They never reached the Navy's authorized quota of 321,056.[24]
In 1942, initial CB boot was atCamp Allen inNorfolk, Virginia, which moved to Camp Bradford, which moved toCamp Peary and finally moved toCamp Endicott inQuonset Point, Rhode Island. CBs 1–5 were sent directly overseas for urgent projects. CBs that followed were sent toAdvance Base Depots (ABDs) for deployment.[25] Camp Rousseau at Port Hueneme became operational first and was the ABD to the Pacific. The Davisville ABD became operational in June with NTCCamp Endicott commissioned that August.[26] Other CB Camps wereCamp Parks, Livermore, Ca.,[27] and Camp Lee-Stephenson, Quoddy Village,Eastport, Maine[28] and Camp Holliday,Gulfport, Mississippi.
CBs sent to the Pacific were attached to one of the four Amphibious Corps: I, III, and V were USMC. TheVII Amphibious Force was under GeneralDouglas MacArthur,Supreme Commander. MacArthur said the only problem he had with the Seabees was that he didn't have enough of them.
Advance Bases
The Office of Naval Operations created a code identifying Advance Base (AB)[29] construction as a numbered metaphor for the size/type of base. That code was also used to identify the "unit" that would be the administration for that base.[30] These were Lion, Cub, Oak and Acorn with a Lion being a main Fleet Base (numbered 1–6).[31] Cubs were Secondary Fleet Bases 1/4 the size of a Lion (numbered 1–12).[32] Oak and Acorn were the names given air installations, new or captured (airfield or airstrip).[33] Cubs quickly gained status. The speed with which the Seabees could make one operational led the Marines to consider them atactical component. Camp Bedilion shared a common fence-line with Camp Rousseau at Port Hueneme and was home to the Acorn Assembly and Training Detachment (AATD)[34] As the war progressed, BuDocks realized that logistics required that Advance Base Construction Depots (ABCDs) be built and CBs built seven.[35] When the code was first created, BuDocks foresaw two CBs constructing a Lion. By 1944 an entire Regiment was being used. Theinvasion of Okinawa took four Construction Brigades of 55,000 men. The Seabees built the infrastructure needed to take the war to Japan. By war's end CBs had, served on six continents, constructed over 300 bases on as many islands.[36] They built everything: airfields, airstrips,piers,wharves,breakwaters,PT &seaplane bases, bridges, roads, com-centers, fuel farms, hospitals, barracks and anything else.[37]
In the Atlantic the Seabees biggest job was the preparations for theNormandy landing. After which CBMUs 627, 628, and 629 were tasked to facilitate the crossing of theRhine. For CBMU 629 it was front-line work.[38] The Pacific is where 80% of the NCF deployed.
In February 1942CNO AdmiralHarold Rainsford Stark recommended African Americans for ratings in the construction trades. In April the Navy announced it would enlist African Americans in the Seabees. Even so, there were just two CBs that were "colored" units, the 34th and 80th.[40] Both had white Southern officers and black enlisted. Both battalions experienced problems with that arrangement that led to the replacement of the officers. The men of the 34th went on a hunger strike which made national news. The Commander of the 80th had 19 enlisted dishonorably discharged for sedition. TheNAACP andThurgood Marshall got 14 of those reversed.
In early 1943 the Navy commissioned its first African American officers.[41] The first to enter the Seabees officer corps wasMIT graduateEdward S. Hope.[41] In May 1943 he completed CEC training at Camp Endicott and was posted as the Public Works officer at Manana barracks Hawaii Territory.[41] That same year, the Navy drew up a proposal to raise the number of colored CBs to 5 and require that all non-rated men in the next 24 CBs be colored. The proposal was approved, but not acted on.
The lack of stevedores in combat zones was a huge issue for the Navy. Authorization for the formation of cargo handling CBs or "Special CBs" happened mid-September 1942.[42] By wars end 41 Special CBs had been commissioned of which 15 were "colored". Neither the Navy or NCF used that label, the units were simply segregated in the men assigned to them. The Special CBs were the first fully integrated units in the U.S. Navy.[40] V-J Day brought the decommissioning of all of them. The Special CBs were forerunners of today'sNavy Cargo Handling Battalions of theNavy Expeditionary Logistics Support Group (United States). The arrival of 15 African American Special CBs in Pearl Harbor made segregation an issue for the14th Naval District.[43] For a protracted period the men lived in tents, but the disparity of treatment was obvious even to the Navy.[43] The 14th Naval District Command felt they deserved proper shelter with at least separate but equal barracks.[43] Manana Barracks and Waiawa Gulch became the United States' largest "colored" installation with over 4,000 Seabee stevedores barracked there.[43] It was the site of racial strife to the point that the camp was fenced in and placed under armed guard.[43] The Seabees were trucked to and from the docks in cattle trucks.[43] Two naval supply depots were located at Waiawa Gulch. At wars end 12,500 African Americans would serve in the Construction Battalions.[44]
The 17th Special CB was one of the segregated Specials and was atPeleliu in September 1944. The unit is not listed in the USMC order of battle atPeleliu despite being attached to the 1st Marine Pioneers. On D-day, the7th Marines had a situation where they did not have the men to man thelines andget the wounded to safety. Coming to their aid were the 2 companies of the 16th Marine Field Depot (segregated) and the 17th Special CB. The Japanese mounted abanzaicounter-attack at 0200 hours that night. By the time it was over, nearly the entire 17th had volunteered to carryammunition to thefront lines on thestretchers they brought the wounded back on. They filled the line where the wounded had been, manned37mm guns that had lost crews and volunteered for anything the Marines needed. The 17th remained with the 7th Marines until theright flank had been secured D+3.[45][46][47][48][49] There is nothing comparable in USMC history. According to the Military History Encyclopedia on the Web, "were it not for the Black Marine shore party---the (banzai) on the 7th Marines would not have been repulsed".[50]
"Thenegro race can well be proud of the work performed [by the 11th Marine Depot Co./ 7th Marine Ammunition Co./ 17th Special CB]. The wholehearted co-operation and untiring efforts which demonstrated in every respect that they appreciated the privilege of wearing a Marine uniform and serving with the marines in combat. Please convey to your command these sentiments and inform them that in the eyes of the entire division they have earned a 'well done'."[52][53] The Department of the Navy made an official press release 28 November 1944 of the 17th CB's copy of this letter.[54]
Construction Battalion Detachment (CBD) 1058 was formed from "screening Camp Peary and the NCF forgeologists,petroleum engineers,oil drillers,tool pushers,roustabouts androughnecks" and later designated 1058.[57][58] Additional personnel were chosen for theirarctic experience with CBs 12 and 66.[57] They mustered at Camp Lee Stephenson for Operation Pet 4. Congress put $1,000,000 aside to wildcat for oil in U.S. Navy Petroleum Reserve No. 4 (NPR-4) in 1944. NPR-4 had been created and placed in theoil reserve in 1923.[57] Today NPR-4 is theNational Petroleum Reserve in Alaska. The detachment's mission was:
On July 19 theUSSSpica headed north with theSSJonathan Harrington forPoint Barrow andCape Simpson. The det's base camp was constructed atPoint Barrow. FourD-8s with twenty sleds of supplies were prepped for the 330-mile trek to Umiat once thetundra had frozen.[59] The first tractor train delivered supplies, the second, heavy well equipment.[59] The D8s would make eight trips total. When summer arrived a wildcat was drilled to 1,816' before the cold shut down operations. The hole was designatedSeabee#1[60] It was near four knownseeps atUmiat in the very south-east of NPR 4.[57][59] The rock strata there was from theUpper Cretaceous and astratum of it was named the "Seabee Formation".[61] On the coast the Seabees drilled test holes at Cape Simpson and Point Barrow.[62] Once the runways were completed additional supplies were flown in. In March 1946 civilians took over the project. Some Seabees of CBD 1058 were hired immediately upon discharge to continue doing the work they had been doing"[61] The Navy applied the cold weather experience from CBD 1058 forOperation Highjump andOperation Deep Freeze. Seabee #1 remains aUSGS monitor well today.[63]
Land surveys
Twice the Seabees have been tasked with large-scale land surveys. The first was done by CBD 1058 for a proposed NPR 4 pipeline route to Fairbanks. TheTrans-Alaskan pipeline follows a portion of their survey from roughly theArctic Circle to Fairbanks. The second would be done by a Seabee team from MCB 10. They went to Vietnam in 1956 to survey and map the existingroad network.[64] That survey was extensively used during theVietnam War.
Malaria and Epidemic Control Group
Navy Medicine created the Malaria and Epidemic Control Group to deal with insect-borne diseases. Between August 1942, and February 1943, American troops in the Pacific averaged 10malaria cases for every combat injury. Seabees oiled, drained and sprayed mosquito breeding areas and inspected and fumigated ships and aircraft transiting malaria-infested areas.[65] It was an important task that absolutely needed to be done in order for the United States to field an effective combat force. On Guadalcanal the 63rd CB had malaria control as its primary task.[66] At Gulfport a school was established to train Battalions for the Malaria and Epidemic Control Group.
During World War II Seabees were tasked outside the NCF in the USMC, NCDUs, and UDTs.
USMC historian Gordon L. Rottman wrote "that one of the biggest contributions the Navy made to the Marine Corps during WWII was the creation of the Seabees".[70] In exchange, the Corps would be influential upon the CB organization and its history. After the experience ofGuadalcanal theDepartment of War decided that the Marines and Seabees would make all subsequent landings together.[71] That arrangement led to numerous Seabee claims that they had landed first, even leaving signs on the beach asking the Marines "What took you so long?"[71] The Seabees in the UDTs made an effort of this[71] of which their mates in the CBs approved.
When the first three CBs were formed the Seabees did not have a base of their own. Upon leavingboot the recruits were sent toNational Youth Administration camps in Illinois, New Jersey, New York, and Virginia to receive military training from the Marine Corps.[1]: 138 The Marine Corps listed CBs on theirTable of organization: "D-Series Division" for 1942,[72] "E-Series Division" for 1943,[73][74] and "Amphibious Corps" for 1944–45.[75]
When CBs were created the Marine Corps wanted one for each of the three Marine Divisions, but were told no because of war priorities. Even so, early Seabee units were connected with Marine Corps ops. The 1st Naval Construction Detachment (Bobcats)[20] together with and A Co CB 3 was transferred to the Marines and redesignated 3rd Battalion22nd Marines.[76] The Bobcats had deployed without receiving advanced military training. The 22nd Marines took care of that.[77] The 4th Construction Detachment was attached to the 5th Marine Defense Battalion for two years.[21]
By autumn, the 18th, 19th and 25th CBs[78] had been transferred to the Corps as combat engineers.[79] Each was attached to a composite engineer regiment,[80] redesignated as 3rd Battalion:[79]17th Marine Regiment,18th Marine Regiment,19th Marine Regiment, and20th Marine Regiment. The 18th and 19th CBs each claim to have been the first CBs authorized to wear standard USMC issue.[68] Both received their military training and USMCduffle bag at MTCNew River, NC. There is no record of how many CBs received USMC issue. It is known that the 31st, 43rd,[81] 76th,[82] 121st and 133rd CBs received partial or complete issues.[83] On 15 January 1944 the 142nd CB was commissioned at New River,Camp Lejeune. On 2 February that Battalion arrived at Camp Pendelton for further training, mounting out 19 April.
After Guadalcanal amphibious operations became joint USMC/Seabee pairings. The 6th CB joined the1st Marine Division after combat had started on Guadalcanal. The 18th CB was sent to join them fromFleet Marine Force depot Norfolk.[84] Many more would follow. The 6th Special CB was tasked to the 4th Marines Depot in theRussells.[21] November saw the 14th CB tasked to the 2nd Raider Bn on Guadalcanal. In June, the 24th CB had been tasked to the 9th Marine Defense Bn onRendova.[85] The 33rd and 73rd CBs had dets tasked to the 1st Pioneers as shore party onPeleliu[86] as was the 17th Special CBcolored. At Enogi Inlet onMunda, a 47th det was shore party to the 1st and 4thMarine Raiders.[76] The 3rd Marine Div. made the Commander of the 71st CB shore party commander on Bougainville. His 71st had support from the 25th, 53rd, and 75th CBs.[87] AtCape Torokina the 75th had 100 men volunteer to make the assault of the 3rd Marines.[88] Also at Bougainville, the 53rd provided shore parties to the 2nd Raiders on green beach and the 3rd Raiders onPuruata Island.[89] The 121st was formed at the CB Training Center of MTC Camp Lejuene as 3rd Bn 20th Marines.[90] They would be shore party to the 23rd Marines on Roi-Namur, Saipan, and Tinian.
When the Marine Engineer Regiments were inactivated in 1944, CBs were then tasked to Marine Divisions. ForIwo Jima, the 31st and 133rd were attached to the 4th and 5th Marine Divisions. The 133rd was shore party to the23rd Marines.[91] while the 31st CB was in the 5th Shore Party Regiment. The 31st demolitionsmen attached directly to the Division.[92][93] The 8th Marine Field Depot was the shore party command eschelon for Iwo Jima. They requested 26 heavy equipment operators and received volunteers from CB 8.[94] Okinawa saw the 58th, 71st, 130th, and 145th CBs detached from the Navy and tasked to the Marine Corps 6th, 2nd, and 1st Marine Divisions respectively.[95]
From Iwo Jima the 5th Marine Div. returned toCamp Tarawa to have the 116th CB attached.[93] When Japan fell the 116th CB was part of the occupation force.V-J day left thousands of Japanese troops in China and the III Marine Amphibious Corps was sent there to get them home. The 33rd NCR was assigned to III Marine Amphib. Corps for this mission.[96]
CBs were also tasked individually to the three USMC Amphibious Corps. The 19th CB started out with theI MAC[84] prior to joining the 17th Marines. The 53rd CB was attached to I MAC as Naval Construction Battalion I M.A.C. When I MAC was redesignatedIII Amphibious Corps the battalion became an element of the1st Provisional Marine Brigade.[97] For Guam, III Amphibious Corps had the 2nd Special CB, 25th, and 53rd CBs. The CO 25 CB was shore party commander for the 3rd Marines on beaches Red 1 and Red 2. The 3rd Marines would award 25's shore party 17 bronze stars.[98]V Amphibious Corps (VAC) had the 23rd Special and 62nd CBs on Iwo Jima. On Tinian the 6th Construction Brigade was attached to V Amphibious Corps.[99]
When the war ended the Seabees had a unique interservice standing with the U.S. Marine Corps.[102] Seabee historianWilliam Bradford Huie wrote "that the two have a camaraderie unknown else-wheres in the U.S. military".[103] Even though they are "Navy" the Seabees adopted USMC fatigues with a Seabee insignia in place of the EGA. At least 10 CB units incorporated USMC insignia into theirs. Admiral Moreell wrote, tongue in cheek, that the Marines were the best fighting men in the Pacific, but one had to serve 90 days with the Seabees to qualify to as a "Junior Bee".[104]
In early May 1943, a two-phase "Naval Demolition Project" was ordered by theChief of Naval Operations "to meet a present and urgent requirement" for theinvasion of Sicily. Phase-1 began at Amphibious Training Base (ATB)Solomons, Maryland with the creation of Operational Naval Demolition Unit # 1. Six Officers led by Lt. Fred Wise CEC and eighteen enlisted reported from Camp Peary dynamiting and demolition school.[106] Seabees called them "Demolitioneers".[107]Naval Combat Demolition Units (NCDUs) consisted of one junior CEC officer,[108] five enlisted, and were numbered 1–216.[109] After that first group had been trained, Lt. CommanderDraper Kauffman was selected to command the program. It had been set up in Camp Peary's "Area E"(explosives) at the dynamiting and demolition school. Between May and mid-July, the first six NCDU classes graduated at Camp Peary. While the program was at Camp Peary the men were given head-of-the-line privileges at the mess hall. The program was moved toFort Pierce where the first class began mid-July.[107] Despite the move, Camp Peary remained Kauffman's primary recruit center. "He would go back to the dynamite school, assemble the (Seabees) in the auditorium and say,"I need volunteers for hazardous, prolonged and distant duty."[23] Fort Pierce had two CB units assigned, CBD 1011 and CBMU 570. They were tasked with the construction and maintenance of obstacles needed for demolition training.
Theinvasion of Normandy had 34 NCDUs. When the first ten arrived in England they had no CO. Lt. Smith (CEC) assumed the role, splitting them up to train with the 146th, 277th and 299thCombat Engineers.[110] As more NCDUs arrived they did the same, with 5 combat engineers attached to each NCDU.[111] Group III (Lt. Smith) didresearch and development and is credited with developing the Hagensen Pack.[110] NCDUs had a 53% casualty rate at Normandy.[23] Four from Utah beach later took part inOperation Dragoon.
With Europe invaded, Admiral Turner requisitioned all available NCDUs from Fort Pierce for integration into the UDTs for the Pacific. That netted him 20 NCDUs that had received Presidential Unit Citations and another 11 that had gotten Navy Unit Commendations.[112] Prior to Normandy 30 NCDUs[113] had embarked to the Pacific and another three had gone to theMediterranean. NCDUs 1–10 were staged at Turner City onFlorida Island in the beginning of 1944.[114] NCDU 1 was briefly in theAleutians in 1943.[115] The first NCDUs in combat were 4 and 5 with the 4th Marines onGreen Island, Papua New Guinea andEmirau Island.[115] Later, NCDUs 1–10 were combined to form the short-lived UDT Able. NCDUs 2, 3, 19, 20, 21 and 24[116] were assigned to MacArthur's 7th Amphibious Force and were the only NCDUs remaining at the war's end.
see Notes
Prior toOperation Galvanic and Tarawa, V Amphibious Corps had identifiedcoral as an issue for futureamphibious operations. RADMKelly Turner, commander V Amphibious Corps had ordered a review to get a grip on the problem. VAC found that the only people having any applicable experience with the material were men in the Naval Construction Battalions. Lt. Thomas C. Crist, of CB 10, was in Pearl Harbor fromCanton Island[118][119] where he had been in charge of clearingcoral heads. His being in Pearl Harbor was pivotal inUDT history. While there he learned of the Adm. Turner's interest in coral blasting and met with him. The Admiral tasked Lt. Crist to develop a method for blasting coral under combat conditions and putting together a team to do it.[113] Lt. Crist started by getting men from CB 10, but got the remainder from the 7th Construction Regiment.[120] By 1 December 1943 he had close to 30 officers and 150 enlisted atWaipio Amphibious Operating Base on Oahu.[113]
In November the Navy had a hard lesson with coral and tides atTarawa. It prompted Adm. Turner to request the creation of nineUnderwater Demolition Teams to address those issues.[121] Six teams for VAC in the Central Pacific while the other three would go to III Amphibious Corps in the South Pacific. UDTs 1 & 2 were formed from the 180 men Lt. Crist had staged. Seabees make up the majority of the men in teams 1–9, 13 and 15.[122] How many Seabees were in UDTs 10 and 12 is not listed, for UDT 11 they composed 20% of the team.[122][123]UDT officers were mainly CEC.[124] UDT 10 had 5 officers and 24 enlisted originally trained as OSSMaritime Unit: Operational Swimmer Group II,[125] but the OSS was not allowed to operate in thePacific Theater. Adm. Nimitz needed swimmers and approved their transfer from the OSS to his control. The MU men brought with theswimfins they had trained with and the Seabees made them a part of UDT attire as quickly as theSupply dept. could get them.[125] In the Seabee dominated teams the next largest group of UDT volunteers came from the joint Army-NavyScouts and Raiders school that was also in Fort Pierce. Additional volunteers came from theNavy's Bomb disposal School, Marine Corps and U.S. Fleet.[113][122]
The first team commanders were Cmdr. E.D. Brewster (CEC) UDT 1 and Lt. Crist (CEC) UDT 2. Both Teams were "provisional" totaling the 180 men Lt Crist had put together from the 7th NCR.[126][120] Those men were put through five weeks of training by aMarine Corps Amphibious Reconnaissance Battalion. They wore fatigues, life-vests and were expected to stay in their rubber boats like the NCDUs. At Kwajalein Adm.Turner ordered daylightrecon. It was apparent to the Seabees that staying in the boats would not get the Admiral theintel he wanted. Cmdr. Brewester's men all wore swim trucks under theirfatigues.Ensign Lewis F. Luehrs, and Charp. Bill Acheson spent 45 minutes in the water in broad daylight and were the first team members recovered.[113] Still wet and in their trunks they reported directly to Adm. Turner. He concluded what they had done was the only way to get accurate intelligence on submerged obstacles and conveyed that opinion toAdm. Nimitz.[127] AtEngebi Cmdr. Brewster was wounded.[113] The success of UDT-1 not following USMC Recon protocol rewrote the UDT mission model and training regimen.[128] Ens. Luehrs and Charp. Acheson were each awarded aSilver Star for their initiative while unintentionally creating the UDT "naked warrior" image.[129] Diving masks were uncommon in 1944 and some men had tried using goggles at Kwajalein.[130] Diving masks were a rare item in Hawaii so Lt. Crist and CB Chief Howard Roeder had requested supply get them.[130] A fortuitous observation by one of the men spotted a magazineadvertisement for diving masks. A priority dispatch was made to the States that appropriated the store's entire stock.[130] The UDTs adopted goggles independent of the OSS. When UDTs 1 and 2 returned to Hawaii Chief Acheson and three other UDT Officers were transferred to the 301st dredging CB.[120] The 301st had 12 dredges saving Teams from blasting channels, but needed divers to get the job done. Ensign Leuhrs made Lt. and was a member of UDT 3 until he was made XO of team 18. Commander Brewster's purple heart got him out of the UDTs and elevated to Commander 7th NCR instead of back to CB 10.
Adm. Turner also requested the formation of a Demolition Training Center atKihei. It was approved. The actions of UDT 1 provided the training model, making UDT training distinctly different from Fort Pierce's NCDU program. Lt. Crist was briefly the first training officer and emphasized swimming and recon until he was made CO of UDT 3. When UDT 3 returned from Leyte in the fall of 1944 it became the school instructors with Lt. Crist again OIC of training.[122] The classes now included:night ops, weapons,bivouacking, smallunit tactics, along with coral andlava blasting. In April 1945, team 3 was sent to Fort Priece to instruct there. Lt. Crist was promoted to Lt. Cmdr. and sent back to Kihei. Team 3 would train teams 12–22.[122] UDT 14 is called the first "all fleet team" even though it had Seabees from Team Able and the CO and XO were both CEC. UDT 15 was the last team formed of NCDUs. Teams 12–15 were sent to Iwo Jima. Three cleared the shoreline for five days, D+2-D+7. After July 1944 new UDTs were only USN. In 1945, CBMU 570 was tasked to the UDT coldwater training center at ATB Oceanside, CA.[131]
On Guam team 8 requested permission to build a base.[132] It was approved by AdComPhibsPac, but disapproved by Island Command.[132] Team 8 turned to the CBs on the island and got everything needed.[132] Coral paving got placed the night before Admiral Nimitz inspected, giving teams 8 & 10 a glowing review.[132]
By V-J day 34 teams had been formed.Teams 1–21 saw actual deployment with the Seabees providing over half of the men in those teams. The Navy did not publicize the existence of the UDTs until post-war and when they did they gave credit to Lt. Cmdr. Kauffman and the Seabees.[133] During World War II the Navy did not have a rating for the UDTs nor did they have an insignia. Those men with the CB rating on their uniforms considered themselves Seabees that were doing underwater demolition. They did not call themselves "UDTs" or "Frogmen", but rather "Demolitioneers"[134] reflecting where Lt. Cmdr. Kauffman had recruited them from, the CB dynamiting and demolition school.
UDTs had to be of standard recruiting age, Seabees older could not volunteer. Mid-year 1945, in preparation for the cooler waters around Japan, a cold water training center was created. With it came a more demandingphysical. Team 9 lost 70% of the team to this change.
Postwar, MCB 7 was tasked with projects at the UDT training facility onSt. Thomas, Virgin Islands
see Notes
When World War II ended theCold War began. Seabee service during this period supported a broad spectrum of the national interest; nuclear testing, two wars, embassy security, space race, CIA, military communications, international relations, pure science, and Camp David.
On V-J-Day CB 114 was in the Aleutians. In September 1945 the battalion sent a detachment to theUSSR to build a Fleet Weather Central.[135][136] It was located 10 miles (16 km) outsidePetropavlovsk-Kamchatsky on theKamchatka Peninsula.[137] The original agreement gave the Seabees 3 weeks to complete the base. Upon arrival the Russians told them they had 10 days and were amazed it was done in 10.[137] It was one of two thatStalin agreed to.
V-J-Day brought aboutOperation Beleaguer and the repatriation of the Japanese Army fromChina. Elements of the 33rd CB Regiment were involved: CBs 83, 96, 122 and 32nd Special.[138] These units landed atQingdao andTanggu in November 1945 attached to the 6th Marine Division. CB 42 and A Co. 33rd Special landed atShanghai with Naval Advance Base Unit 13.[139] With the war over, the ongoing discharge men eligible left only enough for one CB and the two CB Specials. The men were consolidated in the 96th[138] with the other CBs decommissioned. In December the 96th started airfields at Qingdao andQinhuangdao in support of III Marine Amphibious Corps operations.[138] May 1946 CB III Marine Amphibious Corps was ordered to inactivate the 96th CB on 1 August. The 96th was transferred to the 4th Marines, 1st Marine Division and deactivated from them.
In early 1946 the 53rd NCB was deployed withOperation Crossroads for thenuclear testing at Bikini Atoll.[140] It was designated Task Unit TU 1.8.6.[141] 53's project list included observation, instrument and communication towers,radio beacons, seismic huts, photo reference crosses, general base and recreational facilities, as well asdredging thelagoon. In addition, recreational facilities were constructed on Japtan Island for the ships crews of the Operation. The Battalion also assisted the relocation of the natives. They disassembled both the Community center and church for reassembly onRongerik Atoll. In August the battalion was decommissioned with men transferred to CBD 1156 that was then commissioned on Bikini.[142] The TU 1.8.6 designation transferred to the CBD. CBD 1156 remained for nine days after the second test.[143][144]
UDT 3 was designated TU 1.1.3 for the operation. On 27 April 1946, seven officers and 51 enlisted embarked at CBC Port Hueneme for Bikini.[145] Their assignment was to retrieve watersamples fromground zero of the Baker blast. In 1948, the displaced bikinians put in a request that a channel to the islandKili where they had been relocated be made. This was given to the Seabee detachment on Kwajelin who requested UDT 3 assist.
The 121st CB was decommissioned in December and re-designated CBD 1504.[146] In January 1947 CBs 104 and 105 were reactivated. The 30th NCR was home-ported on Guam composed of CBDs 1501-13 and NCB 103. In 1949, the 103rd was made a Mobile Construction Battalion (MCB) while CBs 104 and 105 were made Amphibious Construction Battalions(ACBs). From 1949 until 1968 CBs were designated MCBs. In 1949, MCB 1 was reactivated at Naval Amphibious Base Little Creek, VA. In June 1950 the NCF totaled a few thousand.
The outbreak of theKorean War led to a call-up of 10,000 from the Seabee Reserve. Seabees landed atInchon during the assault, installing causeways dealing with enormous tides and enemy fire. Their actions there and elsewheres underscored the necessity of having CBs. During that war the authorized size of a CB was 550 men. When the truce was declared there was no CB demobilization as there had been at the end of World War II.
During the Korea, the U.S. realized the need of an air station in the region.Cubi Point in the Philippines was selected. Civilian contractors were approached for bids. After seeing theZambales Mountains and the maze of jungle, they claimed it could not be done. The Navy then turned to the Seabees. The first to arrive was CBD 1802 to do the surveying.MCB 3 arrived on 2 October 1951 to get the project going and was joined by MCB 5 in November. Over the next five years, MCBs 2, 7, 9, 11 and CBD 1803 all contributed to the effort. They leveled a mountain to make way for a nearly 2-mile long (3.2 km) runway. NAS Cubi Point turned out to be one of the largest earth-moving projects in the world, equivalent to the construction of thePanama Canal. Seabees there moved 20 million cubic yards (15 million cubic metres) of dry fill plus another 15 million that washydraulic fill. The $100 million facility ($1.2 billion in 2024 dollars) was commissioned on 25 July 1956, and comprised an air station and an adjacent pier that was capable of docking the Navy's largest carriers.
Seabee TeamsThe World War II precursor to Seabee teams was the PT Advance base Detachment of the 113th CB. Each man was cross-trained in at least three trades with some qualified as corpsmen and divers.[149] During Vietnam the requirement of being skilled in three trades was continued.[150] The first Seabees referred to as "Seabee Teams" were CBDs 1802 and 1803.[151] They were followed by Detachments Able and Baker. TheU.S. State Department learned of the teams and concluded they could have aCold War purpose. They could be U.S. "Good Will Ambassadors" to third world countries to counter the spread ofCommunism, a military version of thePeace Corps. These 13-man teams would construct schools, drill wells or build clinics creating a positive image for the U.S. They were utilized by theUnited States Agency for International Development and were in S.E. Asia by the mid-1950s. Then in the early sixties, theU.S. Army Special Forces were being sent into rural areas of South Vietnam to develop a self-defense force to counter the Communist threat and making use of the Seabee teams at these same places made sense[152] to theCIA. To start, twelve "Seabee teams, with Secret Clearances, were sent with the Army's Special Forces in the CIA fundedCivilian Irregular Defense Group program (CIDG)"[153][154] in the years 1963–1965. By 1965 the U.S. Army had enough engineers in theater to end Seabee involvement with Special Forces. At first teams were called Seabee Technical Assistance Teams (STAT) and were restricted to two in theater at a time. Teams after STAT 1104 were renamed Seabee Teams and by 1969 there were 17 in theater.[154] As a military force Seabee Teams received many awards for heroism.[155] Teams were sent to other nations as well. The Royal Thai government requested STATs in 1963 and ever since the Seabees have continued to deploy teams.
Construction Civic Action Details or CCAD[156]CCADs or "See-Kads" are larger civic action units of 20–25 Seabees[157] with the same purpose as Seabee Teams. The CCAD designation is not found in the record prior to 2013.
Camp David is officially known asNaval Support Facility Thurmont, as it is technically amilitary installation. The base is staffed by the CEC, Seabees,[158] and Marines. "In the early 1950s, Seabee BUs, UTs and CEs took over routine maintenance of the base and additional rates were added for administrative functions. Today Seabees still man the base public works and see that thegrounds are in an impeccable condition."[159] "Selectees undergo a single scopebackground investigation to determine if they qualify for aTop Secret Sensitive Yankee White (YW) clearance. All personnel in Presidential support activities are required a "Yankee White" security clearance. The tour lasts 36 months."[158] When the base has a larger construction project a Construction Battalion from the fleet can be tasked. NMCBs5 and133 have drawn these assignments.
Operation Highjump
In December 1946, 166 Seabees sailed from Port Hueneme on theUSSYancey andUSSMerrick assigned toOperation Highjump. They were part of AdmiralRichard E. Byrd's Antarctic expedition. The U.S. Navy was in charge with "Classified" orders "to do all it could to establish a basis for a (U.S.) land claim in Antarctica".[160] The Navy sent the Seabees to do the job starting with the construction ofLittle America (exploration base) IV as well as a runway for aerial mapping flights.[161] This Operation was vastly larger thanIGYOperation Deep Freeze that followed.[160]
Operation Deep Freeze
In 1955, Seabees were assigned toOperation Deep Freeze making Antarctica an annual deployment site. Their task was the construction and maintenance of scientific bases for theNational Science Foundation. The first "wintering over" crew included 200 Seabees. They cleared an 6,000-foot (1,800 m) ice runway atMcmurdo forthe advance party of Deep Freeze II to fly to South Pole Station.MCB 1 was assigned for Deep Freeze II.
Antarctica added to the Seabee's list of accomplishments:
Seabees were in Vietnam twice in the 1950s. First in June 1954, as elements ofOperation Passage to Freedom and then two years later tosurvey and map the roads. Seabee teams 501 and 502 arrived January 1963 as the first Seabees of theVietnam War. They went to Dam Pau andTri Ton to build Special Forces camps.[165] In 1964 small 14 man Seabee groups were tasked to the U.S. Army advisors in the Special Operations Group. ACB 1 was the first CB in the theater that year. In 1965 the Marines arrived, making an amphibious landing at Chu Lai, with Seabees attached. Entire Naval Construction Regiments followed.[150] Seabees supported the Marines at Khe Sanh andChu Lai combat bases. The U.S. had many civilian contractors in the country, however the Seabee construction included numerous aircraft-support facilities, roads, and bridges. For every mile of road they improved, they built 100' of bridge-deck.[150] They also worked civic action projects throughout the country. In June 1965, Construction Mechanic 3rd ClassMarvin G. Shields of Seabee Team 1104 was at theBattle of Dong Xoai. He was posthumously awarded theMedal of Honor and is the only Seabee to receive the award. Seabee Teams were part of apropaganda program to promote support for the RVN through positive community engagement, typically building schools, clinics, or drilling wells. In 1966, Seabees repaired the airfield atKhe Sahn covering an area of 3,900'x60' with aluminum matting in four days.General Westmoreland "called it one of the most outstanding military engineering feats of the war."[166] MCB 4 had a det atCon Thien whose actions were a near repeat ofDong Xoai.
In 1968, the Marine Corps requested that the Navy make a change. The Marines were using "MCB" for "Marine Corps Base" while the Navy was using "MCB" for "Mobile Construction Battalion", it was causing confusion in logistics. The Navy agreed and added "Naval" to MCB creating the NMCBs that now exist. During that year the 30th NCR had five battalions in the Da Nang area and two at Chu Lai. The 32nd NCR had three battalions tasked near Phu Bai and one at Dong Ha. In May 1968 two reserve battalions RNMCB 12 and 22 were activated, bring the total number of battalions in Vietnam to 21. Both ACBs were in theater as well as CBMUs 301 and 302. In 1968, NMCB 10 drew an atypical Seabee "task" supporting the101st Airborne. It happened again in 1969 when CBs 10, 40 and 121 sent EOs to Fire base Fury. During 1969 the number of Seabees in theater reached 29,000, from there their draw-down began.[167] The last battalion withdrew late 1971 with the last Seabee teams out a year later. When it was over they had sent 137 Seabee teams, built 15 CB camps, and deployed 22 battalions.[168]CBMU 302 became the largest CB ever at over 1400 men and was homeported atCam Rahn Bay. On 23 April 1975 it was announced that U.S. involvement in Vietnam was over.That day CB 4 started construction of a temporary camp forOperation New Life on Guam. In seven days 2,000 squad tents were erected and numbered 3,500 when done.[169]
During Vietnam the Seabees had a few uniform variations. One was the stenciling of unit numbers across the back of the field jacket M-65.[170] Another was the collar and cover devices for enlisted E4-E6. The Navy authorized that the "crow" be replaced by the rating insignia of each trade. Nametags were another, they started out white with a multicolored seabee. In 1968, the USMC OD green pattern was copied. The NAVCATs became the only Seabees to ever be authorized to wear a shoulder patch.[171]
NAVCATs Naval Construction Action Teams
CBMU 302 had 23 NAVCATS(Naval Construction Action Teams) total with 15 the most active at one time.[172] Teams were numbered 1-23. They were Vice AdmiralElmo Zumwalt's expansion of the Seabee Team concept. He submitted it in November 1968 to GeneralCreighton Abrams commander ofMilitary Assistance Command, Vietnam.[173]
Agent OrangeMany Seabees were exposed to thedefoliantherbicide while in Vietnam. NCBC Gulfport was the largest storage depot in the United States forAgent Orange. From there it was shipped to Vietnam.[174] In 1968, the NCBC received 68,000barrels to forward.[175] Long term barrel storage began in 1969. That lasted until 1977. The site covered 30acres and was still being cleaned up in 2013.[174][176]
In 1960, a MCB 10 detachment built aProject Mercurytelemetry andground instrumentation station on Canton island.[177][178]
On 28 January 1969 a detachment of 50 men[179] fromAmphibious Construction Battalion 2 plus 17 Seabee divers began installation of theTektite habitat in Great Lameshur Bay atLameshur, U.S. Virgin Islands.[180] The Tektite program was funded byNASA and was the first scientists-in-the-sea program sponsored by the U.S. government.[181] The Seabees also constructed a 12-hut base camp at Viers that is used today as the Virgin Islands Environmental Resource Station.[182] The project was a by product of theSpace Race. It caused the U.S. Navy to realize the need for a permanent Underwater Construction capability that led to the formation the Seabee Underwater Construction Teams".[183]
At present[when?] NASA is working on theMoon to Mars program. In 2015, ACB 1 was involved in moving the Orion'sBoilerplate Test Article (BTA).[184] ACB 1 was tasked in August 2019 in a test recovery exercise of theOrion spacecraft.[185] ACB 2 was put through the same task a year later in August 2020.[186]
Naval Intelligence: NAVFACs
The Navy built 22 Naval Facilities (NAVFACs) for itsSound Surveillance System (SOSUS) to track Soviet submarines. They were in service 1954–79 with Seabees staffing all the Public works. In the 1980s the number of tracking stations was halved with the advent of the Integrated Underwater Surveillance System (IUSS). The NAVFACs were decommissioned by further advances in technology, the end of the Cold War and disclosures byJohn Walker to the Soviets.
The Seabees have also been tasked building Naval Communication facilities. One atNea Makri Greece was built by MCB 6 in 1962 and upgraded by NMCB 133.Naval Comm Station Sidi Yahya was first built in World War II another is NavCommSta Guam. It started out on the island as the Joint Communications Agency (JCA) in 1945.
In 1964, at the height of the Cold War, Seabees were assigned to the State Department because listening devices were found in theEmbassy of the United States in Moscow.[195] Those initial Seabees were "Naval Mobile Construction Battalion FOUR, Detachment November".[196] The U.S. had just constructed a new embassy inWarsaw. After what had been found in Moscow Seabees were dispatched and found many "bugs" there also. This led to the creation of the Naval Support Unit in 1966 as well as the decision to make it permanent two years later.[197][198] That year William Darrah, a Seabee of the support unit, is credited with saving the U.S. Embassy inPrague, Czechoslovakia from a potentially disastrous fire.[199] In 1986, "as a result of reciprocal expulsions ordered by Washington and Moscow" Seabees were sent to "Moscow and Leningrad to help keep the embassy and the consulate functioning".[200]
The Support Unit has a limited number of special billets for select NCOs, E-5 and above. These Seabees are assigned to theDepartment of State and attached toDiplomatic Security.[201][195] Those chosen can be assigned to theRegional Security Officer of a specific embassy or be part of a team traveling from one embassy to the next. Duties include the installation ofalarm systems,CCTV cameras,electromagnetic locks, safes, vehicle barriers, and securing compounds. They can also assist with thesecurity engineering in sweeping embassies (electronic counter-intelligence). They are tasked with new construction or renovations in security sensitive areas and supervise private contractors in non-sensitive areas.[202] Due to Diplomatic protocol the Support Unit is required to wear civilian clothes most of the time they are on duty and receive a supplemental clothing allowance for this. The information regarding this assignment is very scant, but State Department records in 1985 indicate department security had 800 employees, plus 1,200 Marines and 115 Seabees.[203] That Seabee number is roughly the same today.[204]
As theCold War wound down, new challenges and changes came for the Seabees starting with the increased incidence of terrorism. This was in addition to ongoing Seabee support missions for USN/USMC bases worldwide. Cold War Facilities still required support, like thePolaris andPoseidon submarines atHoly Loch,Rota. In 1971, the Seabees began the huge project onDiego Garcia[205] in theIndian Ocean. It was completed in 1987 at a cost of $200 million. With the extended construction timeline, it is difficult to inflation-adjust that cost into today's dollars. The complex accommodates the Navy's largest ships and cargo planes. The base served as a staging facility for OperationsDesert Shield andDesert Storm. Additionally, Seabees were also tasked upgrading and expandingNaval Air Station Sigonella, Sicily for theUnited States Sixth Fleet.
In 1983, a truck bomb demolished theMarine's barracks in Beirut, Lebanon.[205] From theBeirut International AirportDruze militia artillery harassed the Marines. NMCB-1 was in Rota and sent its AirDet to construct bunkers for the Marines.[205] EO2 Kirt May became the first Seabee post-Vietnam to receive aPurple Heart while on this mission.
CN Carmella Jones became the first female Seabee when she cross-rated to Equipment Operator during the summer of 1972.[206]
The Cold war did not end until 1991 and9/11 was further off yet, but SW2Robert Stethem was executed by the LebaneseShia militiaHezbollah when they hijackedTWA Flight 847 in 1985. Stethem was adiver in UCT 1. The Navy namedUSS Stethem (DDG-63) in his honor. On 24 August 2010, during a shipboard ceremony, Stethem was posthumously honored to the rank ofMaster Chief Constructionman (CUCM) by theMaster Chief Petty Officer of the Navy and given thePrisoner of War Medal.
Over 5,000 Seabees served in theGulf War. In August 1990 the 1st Marine Expeditionary Force (I MEF) was assigned NMCBs 4, 5, 7, and 40.[207] The first Seabees in theater were a Det from ABC 1, followed by a Det from ACB 2[207] and then CBUs 411 and 415.[207] Mid September Air-Dets from the four battalions deployed to construct air fields for Marine Air Groups (MAG) 11, 13, 16, and 25 of the3rd Marine Air Wing.[207] NMCB 7 was the first Battalion to arrive. Camp Nomad was a NMBC-74 project at Ras Al Mishab forMAG 26. Camps were constructed for both the 1st and 2nd Marine Divisions as well as Hq complexes for MEF I and II.[207] InSaudi Arabia, Seabees built numerous camps, galleys,runways, aprons,helo zones, plus two 500-bed Fleet Hospitals nearAl-Jubayl. The 3rd NCR was activated to provide a command echelon. NMCBs 24 and 74 also deployed in support of the Marines.[207]
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Seabees deployed in both initial invasions of theAfghanistan War andIraq War. All active and reserve NMCBs and NCRs were deployed to building to work on civilinfrastructure.[208] One of the most visible tasks assigned to the NCF was the removal of statues ofSaddam Hussein inBaghdad.
In Afghanistan, the Seabees' main task was the construction of multipleforward operating bases. NMCB 133 deployed to FOBCamp Rhino and help buildKandahar Airfield where a detention facility was constructed as well.[208]
Since 2002, Seabees have provided civic action support in the Philippines,[208] most notably nearAbu Sayyaf's jungle training area in the southern Philippines. Seabees work with Army, Marines, and Air Force under the Joint Special Operations Task Force - Philippines.[208]
Seabees have supported theWar on Terror ever since the invasion with numerous deployments over the years.
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At present, there are six active-duty Naval Mobile Construction Battalions (NMCBs) in the United States Navy, split between the Pacific Fleet and the Atlantic Fleet.
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30th Naval Construction Regiment is located on Guam.Naval Construction Battalion Center Port Hueneme, CA is homeport to the Regiment's battalions.
22nd Naval Construction Regiment is stationed atNaval Construction Battalion Center (Gulfport, Mississippi) the homeport to the Atlantic fleet CBs.
NCF ReserveFrom the 1960s through 1991, reserve battalions were designated as "Reserve Naval Mobile Construction Battalions" (RNMCBs). After 1991 "Reserve" was dropped with the integration of reserve units within the NCF making all battalions NMCBs
Detachment: A construction crew that is "detached" from the battalion's "main body" deployment site. The size is determined by the project scale and timeline.
Battalion: Thebattalion is the basic NCF unit with a HQ Company plus four Construction Companies: A, B, C, & D. CBs are organized to function as independent self sufficient units.
Regiment: Naval Construction Regiments (NCRs) provide a higher echelon command to three or four CBs operating on close proximity.
Naval Construction Groups 1 and 2: In 2013, Seabee Readiness Groups (SRGs) were decommissioned, and re-organized as NCG-1 and NCG-2. They are regimental-level command groups tasked with administrative and operational control of CBs, as well as conducting pre deployment training for all assigned units. NCG-2 is based at CBC Gulfport while NCG-1 is at CBC Port Hueneme.
Seabee Engineer Reconnaissance Team (SERTs)
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SERTs are theSpecial operations capable element of the NCF developed by the First Naval Construction Division (1st NCD) in Operation Iraqi Freedom. They are intended to provide engineering assessments in the field in support of theUnited States Marine Corps Reconnaissance Battalions. A team has two CEC officers and eight enlisted Seabees, augmented by additional personnel as needed.[213] A team has three elements: liaison, security, and reconnaissance. The liaison (LNO) element has an officer and two communications specialists responsible for communicating the assessments and intelligence. Reconnaissance has the other officer, who is the Officer-in-Charge (OIC), aBU orSWcpo with bridge construction experience. The team has acorpsman or medically trained member, the remainder are selected for being the most qualified in their trade. All are required to have the Seabee Warfare pin. In 2013, 1st Naval Construction Division along with SERT's were decommissioned. Today, UCTs performance demonstrate the SERT concept for NECC.[214]
Amphibious Construction Battalions (PHIBCBs)
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ACBs (or PHIBCB) were preceded by the pontoon assembly CBs formed during World War II. On 31 October 1950, MCBs 104 and 105 were re-designated ACB 1 and ACB 2, and assigned to Naval Beach Groups. ACBs report tosurfaceTYCOMs. Additionally, in an ACB half the enlisted are a construction rate while the other half are fleet.
Construction Battalion Maintenance Units
When during World War II these units had 1/4 the personnel of a CB. Their task was to assume maintenance of bases once CBs had completed construction. Today, CBMU's provide public works support at Naval Support Activities,Forward Operating Bases, and Fleet Hospital/Expeditionary Medical Facilities during wartime or contingency operations for aMarine Expeditionary Force (MEF), Marine Expeditionary Group (MEG), or NSW. They also provide disaster recovery support to Naval Regional Commanders inCONUS.
NAVFAC Engineering & Expeditionary Warfare Center Ocean Facilities Department.[217] Gives support to the Fleet through the support of Underwater Construction Teams.[217] UCTs deploy worldwide to conduct underwater construction, inspection, repair, andunderwater demolition.
Underwater Construction Teams (UCT)
UCTs deploy worldwide tasked withunderwater construction, inspections, repairs, and demolition operations. They can support aFleet Marine Forceamphibious operation or provide combat service support ashore. UCT1 ishome ported at Little Creek, Virginia, while UCT2 is at Port Hueneme, California.[218]
After basic UCT training a diver is qualified as a 2nd Class Diver. Training is 26 weeks at the Dive school atPanama City, Florida.It includes a tactical training phase for advanced combat and demolitions skills.[219]The training qualifies divers as Underwater Construction Technicians skilled in: seafloor excavation, hydrographic surveys, search and recovery, engineering reconnaissance, and precision demolitions. Senior NCOs are schooled for their supervisory positions whether construction or demolition.[220]
UCT divers can apply for selection to support theNaval Special Warfare Development Group.[221]
Public Works: U.S. Naval Bases
These units have CEC officers leading them and enlisted Seabees for the various crews. About one-third of new Seabees are assigned toPublic Works Departments (PWD) at naval installations both within the United States and overseas. While stationed at a Public Works Department, a Seabee can get specialized training and experience in multiple facets of their rating. Many bases have civilians that augment Public Works, but the department is a military operation.
Combat Service Support Detachments (CSSD) / Naval Special Warfare (NSW)
The Seabee detachments have several hundred supportingNaval Special Warfare (NSW) units based out of Coronado, CA, and Virginia Beach, VA. Field support can include camp construction, camp and vehicle maintenance, power generation, transportation logistics, and water purification.[222][223] The assignment requires additional training in first aid, small arms, driving, specialized equipment, and[222][223] qualifying as Expeditionary Warfare Specialists.[224] With that qualification a Seabee can be classified as 5306 – Naval Special Warfare (Combat Service Support) or 5307 – Naval Special Warfare (Combat Support).[225] They also can apply for selection to support theNaval Special Warfare Development Group.[221]
Trainees begin "A" School (trade school) upon completion ofboot: 4 weeks classroom, 8 weeks hands-on. From "A" School, trainees most often report to a NMCB or ACB. There, recruits go through four-weeks of Expeditionary Combat Skills (ECS), which is also required for those who report to aNavy Expeditionary Combat Command. ECS provides basic training in map reading, combat first aid, recon and other combat-related skills. Half of each course is spent on basic marksmanship to qualify with theM4 carbine and theM9 service pistol. Those posted to Alfa Company of an NMCB may be assigned to a crew-served weapon, like theMK 19 40 mm grenade launcher, theM2 Browning .50-caliber machine gun or theM240 machine gun. Many reserve units still field theM60 machine gun. Seabees were last in the U.S. military to wear theU.S. Woodland camouflage uniform and theDesert Camouflage Uniform. They now have theNavy Working Uniform Type III and useALICE field gear. Some units with the Marines will use USMC-issueImproved load-bearing equipment (ILBE).
Current rates:[226][227] The current ratings were adopted by the Navy in 1948.
The Seabee "constructionman" ranks of E-1 through E-3 are designated by sky-blue stripes on uniforms. The color was adopted in 1899 as a uniform trim color designating theCivil Engineer Corps, but was later given up. Its continued use is a bit of Naval Heritage in the NCF.
Atpaygrade E-8, the Builder, Steelworker, and Engineering Aid rates combine into a single rate: Senior Chief Constructionman (CUCS). Before NAVADMIN 054/21, at the E-9 paygrade they were referred to as a Master Chief Constructionman (CUCM).
Before NAVADMIN 054/21, the remaining Seabee rates combined only at the E-9 paygrade:
Per NAVADMIN 054/21: Constructionman Master Chief (CUCM), Equipmentman Master Chief (EQCM) and Utilities Constructionman Master Chief (UCCM) renamed Seabee Master Chief (CBCM). Those Master Chiefs already in CUCM, EQCM or UCCM ratings were to be automatically converted to CBCM on 15 March 2021, but current source ratings badges were to be retained.
Diver is a qualification that the various rates can obtain with three grades: Basic Underwater Construction Technician/ NEC B17A (2nd Class Diver), Advanced Underwater Construction Technician/ NEC B18A (1st Class Diver), and Master Underwater Construction Technician/ NEC B16A (Master diver). Seabee divers are attached to five principal commands outside the NCF:
On 1 March 1942 the RADM Moreell recommended that an insignia be created to promoteesprit de corps in the new CBs to ID their equipment as the Air corps did to ID squadrons. It was not intended for uniforms.[1]: 136 Frank J. Iafrate, a civilian file clerk atQuonset Point Advance Naval Base, Davisville, Rhode Island, who created the original "Disney Style" Seabee. In early 1942 his design was sent to RADM Moreell who made a single request: that the Seabee being set inside a letter Q, for Quonset Point, be changed to a hawser rope and it would be officially adopted.[230]
The Seabees had a second Logo. It was of a shirtless constructionman holding a sledge hammer with a rifle strapped across his back standing upon the words "Construimus Batuimus USN". The figure was on a shield with a blue field across the top and vertical red and white stripes. A small CEC logo is left of the figure and a small anchor is to the right. This logo was incorporated into many CB Unit insignias.[231]
During World War II, artists working forDisney Insignia Department designed logos for about ten Seabee units including the: 60th NCB,[232] 78th NCB[232] 112th NCB,[233] and the 133rd NCB.[234] There are two Disney published Seabee logos that are not identified with any unit.[235]
The military qualification badge for the Seabees is known as theSeabee combat warfare specialist insignia (SCW). It was created in 1993 for both officers and enlisted personnel attached to qualifying units: NMCBs, ACBs, UCTs, or NCRs. Its designer, Commander Ross S. Selvidge, CEC, USNR, was the first to wear the insignia.
TheFleet Marine Force Insignia or Fleet Marine Force pin (FMF pin), is for USN officers or enlisted trained and qualified to support the USMC. It comes in three classes : enlisted, officer, and chaplain. For requirements, see: Fleet Marine Force Warfare Specialist (EFMFWS) Program perOPNAV Instruction 1414.4B.
ThePeltier Award is given annually to the "Best of Type" active duty Construction Battalion. It was instituted by Rear Admiral Eugene J. Peltier CEC in 1960. He was Commander of BuDocks 1959–1962.[236]
_amphibious_vehicle_assigned_to_Beachmaster_Unit_One_(BMU-1)_launches_from_the_Military_Sealift_Command_(MSC)_sea_barge_heavy_lift_ship_SS_Cape_Mohican_(T.jpg)
There were six"Seabee" ships built:[237] the SSCape Mendocino (T-AKR-5064), theSS Cape May (T-AKR-5063),SS Cape Mohican (T-AKR-5065) and three operated byLykes Brothers Steamship Company. (the SS Doctor Lykes, the SS Tillie Lykes, and the SS Almeria Lykes). The NCF is the principal user of Seabee barges. Barges are shuttled to and from the mother ship, facilitating the unloading of containerized cargo wherever needed. These ships have an elevator system for lifting the barges out of the water at the stern onto the vessel. Barges, loaded or not are elevated to one of the three decks and then moved forward towards the bow on a track to be stored. The ship can carry 38 barges, 12 each on the lower decks and 14 on the upper. The 38 barges have a total capacity for 160 shipping containers. They have adraft of 2.5', and measure 97'x35'.[238] Besides the barges, the ship has a fuel storage capacity of nearly 36000 m3 (9,510,194 gal.) built in its sides and double hull, allowing it to double as a fuel transport. The ships were purchased by theMilitary Sealift Command.
The U.S. Navy Seabee Museum[239] is located outside the main gate ofNaval Base Ventura County inPort Hueneme, California. In July 2011, the new facility opened with galleries, a grand hall, a theater, storage, and research areas.
The Seabee Heritage Center is the Atlantic Coast Annex of the Seabee Museum in Port Hueneme.[240] It opened in 1995.[241] Exhibits at the Gulfport Annex are provided by the Seabee Museum in Port Hueneme.[242]
TheSeabee Museum and Memorial Park[243] inDavisville, Rhode Island was opened in the late 1990s. A Fighting Seabee Statue is located there.
Other U.S. military construction/engineering units:
World War II
Presidential Unit Citation USN/USMC
U.S. Army Distinguished Unit CitationMarine Corps, Seabees outside the NCF
NCDUs, Seabees outside the NCF
Presidential Unit Citation USN/USMC : Naval Combat Demolition Force O on Omaha beach at Normandy.[259]
Navy Unit Commendation: Naval Combat Demolition Force U on Utah beach at Normandy.UDTs, Seabees outside the NCF
Seabee North Slope Oil Exploration 1944
Cold War: Korea – Seabee Teams
Cold War: Antarctica
Cold War: Vietnam
Presidential Unit Citation USN/USMC : Dets from MCBs 5, 10, 53 and CBMU 301 in support of the 26th Marines at theBattle of Khe Sanh Jan–Feb 1968.[165]Cold War: CIA
Iraq Afghanistan
Presidential Unit Citation USN/USMC : 30th NCR, NMCBs 4, 5, 74, 133, Air-Det 22nd NCR, Air-Det UCT 2, NCF Support Unit 2 in support of the First Marine Expeditionary Force (I MEF Engineer Group) in November 2003 added later upon review were: NMCBs 7, 15 as well as Air-Det NMCB 21, Air-Det NMCB 25, and CBMU 303 Det.[269] (per: CMC MARADMIN 507/03)[270]Seabee insignia
Naval Support Unit
SEABEE Barge Carriers
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