To connect Lido and St. Armands with the mainland, Ringling and Burns began construction of a causeway on January 1, 1925. It was completed one year later. On the day the causeway was formally opened, February 7, 1926, Ringling Estates was also opened to the public.
After the land boom ended, work stopped on St. Armands. The bridge was closed for a short while due to rotting planks. The dredges rusted on Otter Key and trees and weeds started to take over paved roads. St. Armands went into a period of hibernation between 1228 and 1953.
After 1953, businesses began slowly returning and with the development of Bird Key and Longboat Key in the late 1950's and early 1960's St. Armands began to spring to life. Today the Circle represents the vision John Ringling had over 75 years ago.