This model from 1960 shows an extension to the main office, which only lasted until 1968. The two bridges connecting factory #04 to #40 shows they were planning ahead to the Riviera for 1963. You will notice the long bridge going over building #16, #40 all the way to old #40 where the Riviera would first be built. This bridge would carry front end parts from the paint shop (factory #11) 3rd floor #04 to final assembly in old #40. The lower part of the bridge was for wheeled traffic plus front end parts going to new #40. The far bridge was also for wheeled vehicles plus for carrying the frames for the big cars up and over from the frame loading room attached to new #40’s west wall.