Silver Strand Training Complex (SSTC) is a training facility for
U.S. Special Operations Forces. Located between
Imperial Beach, California
Imperial Beach is a beach city in San Diego County, California, United States, with a population of 26,137 as of the 2020 census. It is in the South Bay area of San Diego County, south of downtown San Diego and northwest of downtown Tiju ...
, and
Silver Strand State Beach near
San Diego
San Diego ( , ) is a city on the Pacific coast of Southern California, adjacent to the Mexico–United States border. With a population of over 1.4 million, it is the List of United States cities by population, eighth-most populous city in t ...
. The area is part of
Naval Base Coronado
Naval Base Coronado (NBC) is a consolidated Navy military base, installation encompassing eight military facilities in southern California, stretching from San Clemente Island, located 70 miles west of San Diego, to Mountain Warfare Training Camp ...
and commanded by that base's Commanding Officer. While just north of Imperial Beach, it is within the city limits of
Coronado Coronado may refer to:
People
* Coronado (surname) Coronado is a Spanish surname derived from the village of Cornado, near A Coruña, Galicia.
People with the name
* Francisco Vásquez de Coronado (1510–1554), Spanish explorer often referred t ...
. The facility was known by locals as the "elephant cage" which is a nickname for the large
wullenweber direction finder antenna. The antenna was used to provide direction finding, primary communication links for
U.S. Navy submarines. The antenna was finally dismantled in 2015,
even though it was scheduled to be removed in fiscal year 2007.
History
Naval
Initially created in 1920 as the Navy Radio Compass Station, it was renamed in 1940 as the Navy Direction Finder Station when a permanent direction finding station was established.
In 1943, thirty
WAVES
United States Naval Reserve (Women's Reserve), better known as the WAVES (for Women Accepted for Volunteer Emergency Service), was the women's branch of the United States Naval Reserve during World War II. It was established on July 21, 1942, ...
were stationed there, culminating in 1945 with a total of 112 WAVES; there they engaged in
SIGINT
Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly u ...
. By 1953, it was known as Naval Radio Receiving Station Imperial Beach, and in 1965 it received its well-known Wullenweber Circular Disposed Antenna Array,
an
AN/FRD-10. In 1971, it was renamed as the Naval Radio Receiving Facility. The last of its type to be built, it ceased operation in 1999.
Army
In 1942, the
United States Army
The United States Army (USA) is the primary Land warfare, land service branch of the United States Department of Defense. It is designated as the Army of the United States in the United States Constitution.Article II, section 2, clause 1 of th ...
took ownership of 412.14 acres in Coronado Heights and designated it Fort Emory in honor of Brigadier-General
William H. Emory, itself being subordinate to
Fort Rosecrans, being manned by the 19th
Coast Artillery
Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications.
From the Middle Ages until World War II, coastal artillery and naval artillery in the form of c ...
.
Armament
A weapon, arm, or armament is any implement or device that is used to deter, threaten, inflict physical damage, harm, or kill. Weapons are used to increase the efficacy and efficiency of activities such as hunting, crime (e.g., murder), law e ...
of the base consisted of four
155 mm guns of Battery Imperial, which were later superseded by the two
6-inch M1905 guns of Battery Grant. Coastal radars were authorized in 1943. Construction of a two-gun
16-inch battery (#134) was completed in 1944;
however, the guns were never mounted; these guns would have supplemented the 16-inch Battery Ashburn at Fort Rosecrans.
In World War II, Fort Emory was garrisoned by the
19th Coast Artillery Regiment, and after October 1944 by the 523rd Coast Artillery Battalion. The land upon which the fort was located was turned over to the
Navy
A navy, naval force, military maritime fleet, war navy, or maritime force is the military branch, branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral z ...
in 1947,
with a single army family as
caretaker of the facilities, which were declared surplus a year later;
in 1950 it was finally transferred to the Navy, integrating with the Imperial Beach Radio Station.
Operations
Today the facility provides an excellent training environment with waterborne approaches from both the Pacific Ocean and
San Diego Bay
San Diego Bay is a natural harbor and deepwater port in San Diego County, California, near the Mexico–United States border. The bay, which is long and wide, is the third largest of the three large, protected natural bays on California's of ...
sides.
Offshore the ''Coronado Roads'' area is used for ship systems testing. The city-like layout of the base also provides a realistic site for critical urban warfare training.
For
amphibious operations
Amphibious warfare is a type of Offensive (military), offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the opera ...
training the beaches of the base have been designated Beach White, and Beach Purple, each with two training lanes. In 2010, the Navy proposed increased training, including
mine-sweeping training,
amphibious operations, as well as special warfare operations.
This faced opposition during public hearings by
environmentalist
Environmentalism is a broad Philosophy of life, philosophy, ideology, and social movement about supporting life, habitats, and surroundings. While environmentalism focuses more on the environmental and nature-related aspects of Green politics, g ...
, due to possible impact upon the
California least tern,
San Diego fairy shrimp, and to a lesser extent the
Western snowy plover.
Later that year new warning signs were put up by the Navy warning of increased training, and of endangered species.
A ten-year-long, 818-page
environmental impact statement
An environmental impact statement (EIS), under United States environmental law, is a document required by the 1969 National Environmental Policy Act (NEPA) for certain actions "significantly affecting the quality of the human environment". An E ...
was released relating to this proposed increased activity, it was created with the assistance of the
United States Fish and Wildlife Service
The United States Fish and Wildlife Service (USFWS or FWS) is a List of federal agencies in the United States, U.S. federal government agency within the United States Department of the Interior which oversees the management of fish, wildlife, ...
. Sailors and Marines, training on the Complex are provided maps to avoid environmentally sensitive areas, and conduct clean-ups to minimize impact on those areas supervised by local organizations and the EPA. In an unrelated proposal, the base's water area will be used for training by the
Littoral Combat Ship
A littoral combat ship (LCS) is either of two classes of relatively small surface vessels designed for littoral warfare in near-shore operations by the United States Navy. It was "envisioned to be a networked, agile, stealthy surface comba ...
s for
antisubmarine warfare
Anti-submarine warfare (ASW, or in the older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations a ...
; the Navy has filed its impact upon wildlife with
NOAA
The National Oceanic and Atmospheric Administration (NOAA ) is an American scientific and regulatory agency charged with forecasting weather, monitoring oceanic and atmospheric conditions, charting the seas, conducting deep-sea exploratio ...
as it relates to the
Marine Mammal Protection Act
The Marine Mammal Protection Act (MMPA) was the first act of the United States Congress to call specifically for an ecosystem approach to wildlife management.
Authority
MMPA was signed into law on October 21, 1972, by President Richard Nixon ...
.
In September 2014, the Navy proposed demolishing the Wullenweber Antenna Array stating it was obsolete equipment. By early 2015, the array had been demolished.

In 2014, the Navy proposed expansion of
Special Warfare Command facilities at Silver Strand, dubbed "Naval Base Coronado Coastal Campus"; the proposal had four alternatives, one which would demolish a historic bunker.
Concern has been raised of the effect of planned expansion on ''
Acmispon prostratus'' (
synonym
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are a ...
''Lotus nuttallianus''). At its outset, the expansion in facilities aboard Silver Strand was over $700 million. As of February 2016, the Navy plans to tear down the bunker; it had been planned to be named for Brigadier General
George Washington Gatchell, but is identified as #134. It had been previously used by the Navy as an instruction of SEALs, and had the designation of "Building 99"; it would have been eligible to be listed on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the Federal government of the United States, United States federal government's official United States National Register of Historic Places listings, list of sites, buildings, structures, Hist ...
.
In August 2016, members of the
Kumeyaay nation protested the construction due to concerns about disturbing buried ancestors. It was estimated that demolition of "Building 99" would be completed by December 2016. In April 2018, Representative
Susan Davis raised concern of sewage spillage from the
Tijuana River
The Tijuana River () is an intermittent river, 120 mi (195 km) long, near the Pacific coast of northern Baja California state in northwestern Mexico and Southern California in the western United States. The river is heavily polluted wi ...
would have on SEAL training at the complex. In May 2018, construction continued with five new buildings of the 44 planned to be built, were completed with some already in use. Upon completion, it is expected that over 3,000 navy personnel will be working aboard the complex.
In 2015, the
Naval Special Warfare Advanced Training Command opened a course on
unmanned aerial system
An unmanned aerial vehicle (UAV) or unmanned aircraft system (UAS), commonly known as a drone, is an aircraft with no human pilot, crew, or passengers onboard, but rather is controlled remotely or is autonomous.De Gruyter Handbook of Drone ...
, including the
Scan Eagle, aboard Silver Strand Training Complex, with additional field activities occurring at
Camp Roberts.
References
External links
Official WebsiteEnvironmental Impact Statement*
*
Harbor Defenses of San Diego at the Coast Defense Study Group website*{{cite web , url=http://www.fortwiki.com/Fort_Emory , title=Fort Emory , last1=Stanton , first1=John , last2=Thayer , first2=Bill , date=7 January 2019 , website=fortwiki.com
Military in San Diego
Military facilities in San Diego County, California
South Bay (San Diego County)
1920 establishments in California