wooden scaffolding. As each arch was completed, the gravel beneath it was dug out and dumped through the gates of the extraction tunnel into waiting mine carts, which would then be taken away. When the tunnel had been completely uncovered it would be disassembled and backhoes would continue the excavation to a depth of 19.2 meters. Starting from the east, one arch after another was erected in this way. Eight floors were to be erected beneath the arches, but this was only begun with the first arch. By the end of April 1945 only seven of the projected twelve arches were completed. In the last months of the war it was no longer possible to obtain the necessary materials and workers in order to stay on schedule. War's end and afterward Capture and demolition When the 47th tank battalion of the 14th Armored Division reached Mühldorf in the early days of May 1945, the construction area and all related facilities were placed under US military administration. The company was allowed to dismantle and remove its construction equipment, and the Reichsbahn took up the tracks that led to the complex. Next the army decided to use the grounds as a bomb test site in order to determine the effectiveness of the bunker: This proposal was accepted and in the summer of 1947 the command for the demolition was issued. 125 tonnes of TNT were used for the demolition, which destroyed six of the seven completed arches and damaged the seventh. Trial After the war the US Army's Dachau Military Tribunal prosecuted perpetrators of war crimes in connection with the Weingut I project and the associated concentration and labor camps in the , which was one of the Dachau Trials. Among the accused were members of Polensky & Zöllner's administration, including Karl Bachmann, Director of the Munich branch of P & Z; Karl Gickeleiter, who oversaw construction at the main site; and Otto Sperling, construction foreman. The sentencing was performed on 13 May 1947. The charges against Karl Bachmann were dropped, as his involvement in the maltreatment of the prisoners could not be proven. Gickeleiter was sentenced to a 20-year prison term, which would be reduced to 10 years in 1951 before he was released early on 19 July 1952. The death sentence against Sperling was shortly thereafter shortened to life imprisonment and later reduced even further before he was finally released