 In 1930, German engineer Werner Ruchti was contracted to design the traffic circle, which was to be based on European models.Construction was expedited in order to accommodate the increased vehicle traffic that was expected with the 1932 Summer Olympics, held in Los Angeles, as many of the aquatic and rowing events were to be held in Long Beach.The Los Alamitos Traffic Circle was one of the first of its kind to be constructed in the United States, and prior to their truncation, was also an end point of US 6 (which connects Provincetown, Massachusetts some to the east) and US 91.