[3] A modern land connection was urgently needed after an intense political campaign, as in 1893 Zurich was to be expanded by incorporating 11 neighboring municipalities.
[1] As samples of the Zurich lake bed on the designated area revealed that it was covered by layers of mud above sandy clay loam deposits, the proposed pile foundation of the bridge was the decisive factor.
[1] Arnold Bürkli's proposal was inspired by solution implemented for the building of "Neue Börse" in Basel (later known as Basler Handelsbank and ultimately the predecessor of UBS AG).
[1] On March 18, 1882, the contract was awarded to Zurich architect Emil Schmid-Kerez, in collaboration with Philipp Holzmann & Cie. from Frankfurt and Gebrüder Benckiser from Pforzheim.
[5] Upon German invasion of Poland in WWII[7] and as part of the Zurich lakefront, two machine gun bunkers were built in the 1940s,[5] which are still preserved at their original sites at Limmatquai and Bürkliterrasse.
[8] The bunker at Bürkliplatz was designed by the Stadtkommando Zürich (Zurich City Commando) as a concrete machine gun stand in the wall of Quaybrücke and was erected during May and June 1940[9] in form of a gallery with a sequence of five battle rooms ("Kampfräume") lined up next to each other.