Sausalito in Marin County, California — The American West (Pacific Coastal)

Construction 129

Photographed by Barry Swackhamer, March 31, 2017

1. Construction 129 Marker

Inscription. Despite its imposing appearance, Construction 129 was never used - or even completed. It was to have been armed with 2 guns having massive, 16" diameter barrels. Each weapon weighed almost 1,000,000 pounds and could accurately fire a 2,100 pound shell a distance of 27 miles. This fortification was to have been the highest artillery battery in the Bay Area. However, all work on it was stopped in the mid-1940's, shortly after its guns arrived for mounting. The army had found that weapons like those at Construction 129 and similar batteries wouldn't be effective against attack by enemy planes. As a result, the fortification was abandoned.
Its title, "Construction 129", was only a project number -- the battery had never officially been named or manned.

Topics. This historical marker is listed in these topic lists: Forts and Castles • War, World II.

Location. 37° 49.673′ N, 122° 29.926′ W. Marker is in Sausalito, California, in Marin County. It is on Conzelman Road near McCullough Road, on the right when traveling west. Touch for map. Marker is in this post office area:

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Sausalito CA 94965, United States of America. Touch for directions.

Regionally, this marker is in California’s San Francisco Bay Area,

in the North Coast,

and specifically on the Coast Ranges.

It is also on the American Pacific Coast.

Globally, it is in North America,

on the Ring of Fire,

in the Pacific Rim,

in the Western Hemisphere,

in the Western World,

and in the Anglosphere.

Historically, it finds itself in what was once New Spain

and also Mexico’s Alta California.

Other nearby markers. At least 8 other markers are within one mile of this marker, measured as the crow flies: The Golden Gate (about 300 feet away, measured in a direct line); Battery Construction No. 129 (about 300 feet away); Battery Spencer (approx. 0.9 miles away); Strengthening an Icon (approx. one mile away); The Golden Gate Bridge (approx. 1.1 miles away); The Bay Transformed (approx. 1.1 miles away); The Lone Sailor (approx. 1.1 miles away); H. Dana Bowers Memorial Vista Point (approx. 1.1 miles away). Touch for a list and map of all markers in Sausalito.

More about this marker. This marker is located over the tunnel entrance at the

Photographed by Barry Swackhamer, March 31, 2017

2. Construction 129 Marker

The marker is above the entrance of the tunnel.

Battery Construction No. 129 pullout on the Marin Headlands in Golden Gate National Recreation Area.

Credits. This page was last revised on April 14, 2017. It was originally submitted on April 14, 2017, by Barry Swackhamer of Brentwood, California. This page has been viewed 753 times since then and 18 times this year. Photos: 1, 2. submitted on April 14, 2017, by Barry Swackhamer of Brentwood, California.