North Waterfront in San Francisco City and County, California — The American West (Pacific Coastal)

The 10-Inch Rodman

Photographed By Joseph Alvarado, June 15, 2023

1. The 10-Inch Rodman Marker

Inscription. The cannon in front of you is a replica 10-inch Rodman cannon, a typical Alcatraz artillery piece of the 1860s. An actual Rodman gun and carriage was aimed, loaded and fired by a crew of eight to ten soldiers. The large wheels at the rear allowed the crew to rotate the gun right or left on circular iron rails. At the moment of firing, the gun recoiled backwards and up the inclined iron side rails. Friction and gravity made it stop. Weight of gun and carriage: 20,500 lbs. (9298 kilograms) Weight of solid cannonball: 128 lbs. (58 kilograms) Range with 15 lbs. powder: 2.75 miles (4.4 kilometers)

⠇⠱⠼⠁⠙⠤ ⠠ ⠮ ⠼⠁⠚⠤⠠⠔⠡⠀ ⠄⠗⠕⠙⠍⠁⠝ [The 10-Inch Rodman]

⠼⠁⠚⠤⠔⠡⠀⠗⠕⠙⠍⠁⠝⠀⠉⠁⠝⠝⠕⠝ [10-inch Rodman Cannon]

(Marker Number 14.)

Topics. This historical marker is listed in this topic list: War, US Civil.

Location. 37° 48.398′ N, 122° 24.256′ W. Marker is in San Francisco, California, in San Francisco City and County. It is in North Waterfront. Marker

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can be reached from The Embarcadero south of Bay Street, on the right when traveling north. The resin marker is next to a replica Rodman Cannon on Alcatraz Landing. Touch for map. Marker is at or near this postal address: Pier 33, San Francisco CA 94133, United States of America. Touch for directions.

Other nearby markers. At least 8 other markers are within walking distance of this marker. Indian Occupiers (here, next to this marker); Alcatraz Firepower (here, next to this marker); Alcatraz Fire Power (here, next to this marker); Correctional Officers (a few steps from this marker); Industrial Buildings (a few steps from this marker); Military Schoolhouse (a few steps from this marker); The Post Exchange & Officers' Club (a few steps from this marker); Guardhouse & Sallyport Complex (a few steps from this marker). Touch for a list and map of all markers in San Francisco.

More about this marker. There are two small braille plaques on the marker.

Also see . . . The Man Behind the Rodman Gun. Historynet

"Although in the long run the gun was a technological dead end, the advances introduced by its designer, Brigadier General Thomas Jackson Rodman, revolutionized gun-barrel production and propellant design."

(Submitted on July 17, 2023, by Joseph Alvarado of Livermore, California.)

The 10-Inch Rodman and Marker image. Click for full size.

Photographed By Joseph Alvarado, June 15, 2023

2. The 10-Inch Rodman and Marker

Part of the marker is visible in the bottom left corner.

The 10-Inch Rodman image. Click for full size.

Photographed By Joseph Alvarado, June 15, 2023

3. The 10-Inch Rodman

Credits. This page was last revised on July 17, 2023. It was originally submitted on July 17, 2023, by Joseph Alvarado of Livermore, California. This page has been viewed 59 times since then and 18 times this year. Photos: 1, 2, 3. submitted on July 17, 2023, by Joseph Alvarado of Livermore, California.