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Military Ocean Terminal Concord

Surface Deployment and Distribution Command (SDDC)
5110 Port Chicago Hwy, Concord, CA 94520


Military Ocean Terminal Concord (MOTCO) is located just north of the city of Concord California in the eastern San Francisco Bay Area. The base is comprised of two sections, a 115 acre inland facility and a 6,526 tidal area facility. The Port Chicago Highway connects the two sections. The site is boarded to the north by the waters of Suisan Bay and on the south by the California Delta Highway. The east and west boundaries are marked by Walnut Creek and Kinne Boulevard respectively. Military Ocean Terminal Concord also maintains seven offshore islands within Suisan Bay that lay inside the boundaries of Solano County.


The primary mission of Military Ocean Terminal Concord is to serve as the major west coast distribution hub for surface cargo from storage and repair depots nationwide and supply forward operating United States Armed Forces. Military Ocean Terminal Concord falls under the control of the U.S. Army Surface Deployment and Distribution Command (SDDC) and is operated in conjunction with its east coast sister facility, Military Ocean Terminal Sunny Point in North Carolina.


Military Ocean Terminal Concord was originally established as the Concord Naval Weapons Station in 1942 on the shores of the Sacramento River. During World War II the weapons station served as a storage depot and rearmament facility for naval munitions, supplying ships at Port Chicago in Suisan Bay. The base also maintained a Naval Outlying Field at its southern edge that served as an operating airfield. In 1944 Concord Naval Weapons Station was the site of the worst home-front casualties of World War II with the Port Chicago Naval Magazine explosion. On July 17 1944, 3.5 million pounds of explosives unintentionally detonated causing massive destruction to the area. 320 military and civilian personnel were killed, another 390 seriously injured and $12.5 million in property and structural damage sustained. Today, a five acre memorial, the Port Chicago Naval Magazine National Memorial Site marks the area of the explosion.

Visiting Concord
Visitors to Military Ocean Terminal Concord are required to register with the base security office or have a current Common Access Card. Due to the high volume of explosives and ammunition passing through the facility public access is generally not permitted. The expectation to this is visitors to the Port Chicago Naval Magazine National Memorial Site. Those visiting the memorial are transported into the base via a National Parks shuttle for the guided tour.

Base Population

7.1 million residents