[2] Building on the plan developed by Walter Burley Griffin, in 1957 William Holford proposed to the federal government that the Molonglo be dammed near Yarralumla and that Canberra's 'two halves' should be joined via a lake.

[2] Designed by Maunsell & Partners and built by Hornibrook, the Commonwealth Avenue Bridge comprises five spans of continually pre-stressed concrete, totalling 310 metres (1,020 ft).

The provide an entry and exit clover leaf layout, on the bridges southern approaches, operate structures were constructed totalling 49 metres (161 ft) each, in four approximately equal spans.

In late 2020 the project was evaluated and accepted by Infrastructure Australia[7] and in January 2021, the Federal Government announced funding to renew the Bridge.

That project is unrelated to the ACT Government's plan to extend Canberra light rail network from Civic to Woden[broken anchor].