Yard Layout: Form Follows Function
Development of this historic landscape was driven by the growth and decline of the U.S. shipbuilding industry. At its most basic, shipbuilding involves moving heavy steel pieces around, in order to form them into shapes, and then assemble into a ship. From the beginning, Union Iron Works incorporated the most modern practices in the industry, for instance: creating templates in spacious mold lofts above plate shops by scaling up blueprints plan and locating near the shipways.
Union Iron Works also maintained a capacity to fabricate all of its own components, including the engines, which made the iconic Machine Shop (Building 113) a central feature of the yard's original layout, even as new buildings went up along 20th Street and gave the shipyard a more formal public facade. By the end of World War I, the expanding shipyard transformed the adjacent community of Irish Hill, where many of the tradesmen and laborers in the workforce lived. Down came cottages, boarding houses, saloons and lunch counters. Up went classically designed buildings for administration, engineering and electrical power. These changes mirrored a growing division between shipyard workforce and managers in line with rising national- even international tensions between capital and labor.
Looking south from here. The Union Iron Works Machine Shop (Building 113) are visible beyond the laydown yard, with the Irish Hill neighborhood in the background (1890s).
Erected 2020 by Union Iron Works Historic District.
Topics. This historical marker is listed in these topic lists: Industry & Commerce • Waterways & Vessels. A significant historical year for this entry is 1898.
Location. 37° 45.775′ N, 122° 23.244′ W. Marker is in San Francisco, California, in San Francisco City and County. It is in Central
Regionally, this marker is on the Coast Ranges. It is also on the American Pacific Coast. Globally, it is in North America, on the Ring of Fire, on 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 walking distance of this marker: Industrial Architecture (a few steps from this marker); Yard Evolution: New Power and Production (a few steps from this marker); Building 49 (a few steps from this marker); Crane 14 (within shouting distance of this marker); Ship Propeller Drive Shaft (within shouting distance of this marker); Industrialization of the Shoreline (about 300 feet away, measured in a direct line); Steel Lathe (about 400 feet away); Radial Drill Press (about 400 feet away). Touch for a list and map of all markers in San
More about this marker. The marker is located on the south side of Building 49 in Crane Cove Park.


Credits. This page was last revised on February 7, 2023. It was originally submitted on June 22, 2021, by Andrew Ruppenstein of Lamorinda, California. This page has been viewed 252 times since then and 27 times this year. Photos: 1, 2, 3, 4, 5. submitted on June 22, 2021, by Andrew Ruppenstein of Lamorinda, California.


