[1] Heading east towards Higashiōsaka and Nara, the expressway is an elevated highway running directly over the Yumehanna rail line.

[3] Construction of the Higashi-Osaka Route began in 1967 in preparation for the Expo '70 held in the nearby city of Suita.

[4] The entire expressway was completed by 1976, with the exception of a short section between Osaka Castle and Naniwa Nagara-Toyosaki Palace that was left unbuilt until 1978.

[5] This section's completion was delayed due to the discovery of a trace of a palace that was found along the expressway's route during a survey done in 1960.

[6] A lightweight superstructure was used to elevate the road above the site, but the structure was deemed deficient after fractures developed in it after years of use.