Oct 71 - Dec 72 - Apr 74 - Dec 82 - Sep 84 - Dec 85 - Apr 86 - Jun 86 - Jul 86 - Aug 86 - Aug 87 May 92 - Jun 92 - Nov 92 - Jun 93 - 1997 - Dec 99 - Dec 05 - Jan 17 - Feb 17 - Mar 17 - May 17 - Jun 17 - Jul 17 - Jul 19 October 1971 - Russell Street to The Northern Road (Bringelly Road) The first part was a 5km section of freeway between Russell Street and The Northern Road (previously Bringelly Road). East of Mulgoa Rd, this section was constructed as single carriageway due to the high cost of bridging the Nepean River. The bridge and approaches would be duplicated when traffic volumes demanded. Thanks to OZROADS for the information.