South Eastern Freeway (2017-present) South Eastern Freeway (2000–2017)
Operation
Constructed
1998
Opened
5 March 2000
Traffic
automotive, including commuters and heavy freight
Toll
N/A
Vehicles per day
45,700 (2015)[1]
Technical
Length
500 metres (1,600 ft)
No. of lanes
3 in each tunnel
Operating speed
90 kilometres per hour (56 mph)
Tunnel clearance
5.3 metres (17 ft)[2]
The Heysen Tunnels are twin tube road tunnels which carry the South Eastern Freeway under Eagle On The Hill in the Mount Lofty Ranges in South Australia.
^Annual Average Daily Traffic Estimates 24 hour two-way flow(PDF) (Map). Government of South Australia, Department of Planning, Transport and Infrastructure. 1 March 2015. Map MT12. Retrieved 3 April 2015.
^"South Eastern Freeway". Government of South Australia, Department of Planning, Transport and Infrastructure. 10 February 2015. Over-Height vehicles. Archived from the original on 8 April 2015. Retrieved 4 April 2015.
The HeysenTunnels are twin tube road tunnels which carry the South Eastern Freeway under Eagle On The Hill in the Mount Lofty Ranges in South Australia...
walking trail in South Australia HeysenTunnels, a pair of road tunnels in South Australia Electoral district of Heysen, an electorate in South Australia...
Heysen Trail and HeysenTunnels were named after Heysen The Electoral district of Heysen in the Parliament of South Australia is named after Heysen Australia...
"Highway". South Eastern Freeway includes 500 m (1,600 ft) twin-tube tunnels – the HeysenTunnels – in the descent towards Adelaide, the first of their kind on...
of tunnels in Australia which includes any road, railway, waterway or other form of tunnel, anywhere in the country. Australia portal List of tunnels by...
construction of the HeysenTunnels on the South Eastern Freeway improved road access. Rising real estate prices reflect this. The tunnels, completed in 1999...
"Devil's Elbow" intersection, and contains the northern portal of the HeysenTunnels. Australian Bureau of Statistics (28 June 2022). "Leawood Gardens (suburb...
a dual carriageway highway from Melbourne to Traralgon. 2000 HeysenTunnels SA The tunnel replaced Mount Barker Road (through Eagle On The Hill), extending...
Barker Road to current alignment when freeway extension through the HeysenTunnels opened in 2000 – continues north west as along Glen Osmond Road beyond...
private operators, buses and infrastructure still government owned. HeysenTunnels in Adelaide Hills are opened. 2001: The National Wine Centre of Australia...
hairpin with a partial interchange. The new freeway passes through the HeysenTunnels and rejoins the former alignment the other side of a steep ridge. Mount...
Bridge, Gotthard Base Tunnel, and North American and Madrid initiatives to reduce traffic congestion, The Daily Telegraph's Kirsty Heysen said, "This great...
plains that surround the Murray River and stretch eastwards to Victoria. The Heysen Trail traverses almost the entire length of the ranges, crossing westwards...
Wales: Gifts and Bequests Retrieved 1 February 2008 The Australian – Hans Heysen was an outsider who embraced his new land 26 January 2013 Retrieved 4 July...
been identified in the following localities only: the western face of the Heysen. Ranges [sic]; portion of the Moralana Valley; portion of the Mount Hack...
rhyodacitic ignimbrite. The bottom of the Deakin Volcanics is exposed on nearby Heysen Street. At least 400m thickness of beds are exposed in the Parkway cutting...
Australian chemist and conservationist, leading proponent to the creation of the Heysen Trail, in Adelaide, Australia (d. 2012); Barrie Heath, British fighter pilot...
Global Information
South Eastern Freeway (2017-present) 
South Eastern Freeway (2000–2017)