Port Chicago Naval Magazine National Memorial
Hours
See this week's hours below.
- Entrance fee
- The Park Service lists no entrance fee for this site.
- Phone
- 9252288860
- Address
- 4202 Alhambra Ave, Martinez, CA 94553
About Port Chicago Naval Magazine
On July 17, 1944, a massive explosion jolted the San Francisco East Bay area, shattering windows and lighting up the night sky. At Port Chicago Naval Magazine, 320 men were killed instantly when two ships loading ammunition for Pacific troops exploded, resulting in the worst home front disaster of WWII. The aftermath illuminated the issues of segregation and racial inequality in the military.
Hours
Port Chicago Naval Magazine National Memorial
The Port Chicago Naval Magazine National Memorial is located on Military Ocean Terminal Concord (MOTCO) and is an active base. Due to its location, tours are only available with reservations on a ranger-guided tour. Public access to the memorial is through a two-week advance reservation process and only on Thursdays, Fridays or Saturdays. Allow for 1.5 hours beginning at 12:30 PM. No access Sundays, Mondays, Tuesdays, Wednesdays, and during Military Ocean Terminal Concord (MOTCO) operations.
| Monday | Open 24 hours |
|---|---|
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
Changes to these hours
- Thanksgiving, Nov 26: Closed
- Christmas Day, Dec 25: Closed
- New Years Day, Jan 1: Closed
Getting there
The Port Chicago Naval Magazine National Memorial is on an active military base, so it is only accessible by reservation. The shuttle picks up visitors with reservations at the John Muir National Historic Site. Please know that all visitors for the memorial must have a reservation. Please visit our website for information on how to obtain reservations.
Weather
The Port Chicago Naval Magazine National Memorial is on a base and sits on the waterfront. There is no shelter at the memorial, aside from the shuttle. It can be windy and cold during any season. Many people prefer to at least bring a light jacket during the summer, or coat during the other seasons.
Things to do
Guided Tours, Park Film.
Source: National Park Service data feed, checked September 24, 2026. Hours shown are the Park Service's posted standard hours plus any date changes it lists. Official page for Port Chicago Naval Magazine ↗