The final section is expected to open to traffic in late 2013.
I-475 was first opened to traffic in the early 1970s.
The complete line was finally opened to traffic in 1871.
Several years later, in the early 1960s, the western section of I-470 was opened to traffic.
Finally on 24 July 1874 the line was opened to traffic.
The section was opened to traffic in last month of year 1900.
However, opening to traffic did not take place for some time.
It was opened to traffic on 7 May that year.
It was opened to traffic on May 14 of that year.
On 20 December 1927 the line was opened to traffic.