Battery Construction No. 129 Historical

Battery Construction No. 129 Historical (HM1XV7)

Location: Sausalito, CA 94965 Marin County
Country: United States of America

N 37° 49.626', W 122° 29.952'

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Last of the big gun emplacements

Never named because it was never finished, this battery was designed for the biggest, most powerful guns ever used by the United States military - 16-inch caliber weapons that fired 2,100-pound shells and could hit ships 26 miles out to sea. Construction began in 1942 and was almost complete when it was halted in 1943. World War II had turned in favor of the allies and military leaders were confident that there would be no Japanese attack on this coast.

Though San Francisco's harbor was still the most significant port on the west coast at the close of World War II, coastal defense had changed forever after the aerial attacks on Pearl Harbor. There would be no more big gun batteries - Battery Construction 129 marked the end of seacoast fortifications based on land-mounted artillery positioned to fend off enemy warships.
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HM NumberHM1XV7
Placed ByNational Park Service, Golden Gate National Recreation Ares
Marker ConditionNo reports yet
Date Added Friday, April 14th, 2017 at 9:02pm PDT -07:00
Locationbig map
UTM (WGS84 Datum)10S E 544072 N 4186749
Decimal Degrees37.82710000, -122.49920000
Degrees and Decimal MinutesN 37° 49.626', W 122° 29.952'
Degrees, Minutes and Seconds37° 49' 37.56" N, 122° 29' 57.12" W
Driving DirectionsGoogle Maps
Area Code(s)415
Which side of the road?Marker is on the right when traveling East
Closest Postal AddressAt or near Conzelman Rd, Sausalito CA 94965, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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