So a nazi-aping fascist’s monomaniacal proposal to build an arch on swampy riverfront is in the news. In 1941 Hitler’s architect Albert Speer got approval to build a giant triumphal arch on a main axis of a redesigned Berlin, and quickly built the Schwerbelastungskörper, or heavy load-bearing structure, to test the ability of the marshy soil to support such a ridiculously large structure. It was built with forced labor from captured French soldiers.
The Heavy Load-Bearing Structure is a cylindrical pressure body made of solid concrete 14 meters high, with a diameter of 21 meters. Its 11-meter diameter concrete base extends 18 meters deep. The 12,650 ton weight was calculated to approximate one of the arch’s four base legs.
The war diverted resources and attention from the arch and the redesign of Berlin, and the HLBS was left behind. Scientists and soil management technicians used the structure for data collection until 1983—postwar analysis showed the ground was too soft to have supported Hitler’s arch without major intervention, btw. And it became a historical monument in 1995, “the only tangible example of National Socialist urban planning.”
Now there is a visitor information center, monthly tours, and a Schwerbelastungskörperaussichtsplattform, a Heavy Load-Bearing Structure Viewing Platform, which looks exactly like what a visitor center for a useless nazi concrete plug should look like.