South Gippsland Freeway Victoria |
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Type | Freeway |
Length | 6 km (3.7 mi) |
Route number(s) |
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Former route number |
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North end | |
for full list see exits and interchanges |
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South end | |
Major suburbs / towns | Hampton Park |
Highways in Australia National Highway • Freeways in Australia Highways in Victoria |
for full list see exits and interchanges
South Gippsland Freeway is a short freeway linking Dandenong in Melbourne's south-east to other south-eastern destinations, including the Mornington Peninsula and the Gippsland region. The freeway bears the designation M420.
The freeway originally began as an overflow from construction of the Mulgrave Freeway (now the Monash Freeway) in 1970, where the Mulgrave entered a sweeping turn south, crossed Eumemmerring Creek in Doveton and officially terminated at Princes Highway just outside Dandenong. This intersection was later replanned as a proper underpass and the freeway was unofficially extended under the Princes Highway to run a kilometre further south, along the eastern border of Melbourne's Holden factory at the time, to terminate at the original alignment of the South Gippsland Highway where it met Pound Road.
Some years later, due to the unforeseen success of this section of the freeway, it was redeveloped and "extended" another kilometre south towards Lyndhurst. The old alignment of the South Gippsland Highway was duplicated and upgraded into the new stretch of the freeway, and a new dual-carriageway alignment of the South Gippsland Highway was constructed approximately a kilometre to the freeway's west. Pound Road was extended a few hundred metres west across a new bridge over the freeway, and Dandenong-bound ramps were constructed. The interchange (Lyndhurst interchange) where the freeway and the old and new alignments of the South Gippsland Highway met Lyndhurst Road (renamed Hastings-Dandenong Road not long afterwards) was reconstructed to allow the freeway to flow further south using an overpass above the realigned South Gippsland Highway: those wanting to follow the highway to Cranbourne or beyond simply used the off-lanes.
The Doveton segment of freeway between Eumemmerring Creek and Princes Highway was originally named the Eumemmering Freeway. By 1975 it had been renamed the South Gippsland Freeway.