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“Bite-Size Bits of Local, National, and Global History”
“Bite-Size Bits of Local, National, and Global History”
Sausalito in Marin County, California — The American West (Pacific Coastal)
 

Construction 129

 
 
Construction 129 Marker image. Click for full size.
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.
 
Location. 37° 49.673′ N, 122° 29.926′ W. Marker is in Sausalito, California, in Marin County. Marker is on Conzelman Road near McCullough Road, on the right when traveling west. Touch for map. Marker is in this post office area: Sausalito CA 94965, United States of America.
 
Other nearby markers. At least 8 other markers are within 2 miles 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); Strengthening an Icon
Construction 129 Marker image. Click for full size.
By Barry Swackhamer, March 31, 2017
2. Construction 129 Marker
The marker is above the entrance of the tunnel.
(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); Nike Missile Site SF88 (approx. 1.6 miles away); Battery Alexander (approx. 1.6 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 Battery Construction No. 129 pullout on the Marin Headlands in Golden Gate National Recreation Area.
 
Categories. Forts, CastlesWar, World II
 
 
Credits. This page was last revised on April 14, 2017. This page originally submitted on April 14, 2017, by Barry Swackhamer of San Jose, California. This page has been viewed 153 times since then. Photos:   1, 2. submitted on April 14, 2017, by Barry Swackhamer of San Jose, California.
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