Heysen Tunnels Explained
| Heysen Tunnels |
| Location: | Adelaide Hills south east of Adelaide |
| Route: | South Eastern Freeway
South Eastern Freeway |
| Opened: | 5 March 2000 |
| Traffic: | automotive, including commuters and heavy freight |
| Toll: | N/A |
| Vpd: | 45,700 (2015)[1] |
| Construction: | 1998 |
| Lanes: | 3 in each tunnel |
| Height: | [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.
Construction
The tunnels were excavated using a tunnelling machine normally used in heavy-duty mining operations which tunnelled through of rock for each tunnel at an average rate of per day.[3] The tunnels were completed in 1998 and opened in March 2000.[4] [5]
Operation
Each tunnel carries three lanes of traffic. As at 2015, 45,700 vehicles passed through them daily.[1] The maximum height of vehicles permitted in the tunnels is, the same as the Crafers and Mt Osmond interchanges. Laser height detectors monitor traffic to provide warnings to drivers before they attempt to enter the tunnel.[2]
The tunnels are named after artist Sir Hans Heysen.
See also
References
-34.9741°N 138.6761°W
Notes and References
- Annual Average Daily Traffic Estimates 24 hour two-way flow . 1 March 2015 . Map MT12 . Government of South Australia, Department of Planning, Transport and Infrastructure . 3 April 2015.
- Web site: South Eastern Freeway . Over-Height vehicles . Government of South Australia, Department of Planning, Transport and Infrastructure . 10 February 2015 . 4 April 2015 . https://web.archive.org/web/20150408152938/http://www.infrastructure.sa.gov.au/content/adelaide_to_melbourne_road_corridor/south_eastern_freeway . 8 April 2015 . dead .
- Web site: Heysen Tunnels Construction . 13 August 2004 . Government of South Australia, Department for Transport, Energy and Infrastructure . 2007-07-14 . https://web.archive.org/web/20070831214428/http://ezyreg.sa.gov.au/transport_network/projects/adel_crafers/heysen.asp . 31 August 2007 . dead .
- South Australia Fleetline issue 265 Match 2000 page 45
- Web site: https://web.archive.org/web/20190421093948/https://dpti.sa.gov.au/infrastructure/completed_projects/the_adelaide_crafers_highway . The Adelaide Crafers Highway Project . 2019-04-21 . Department of Planning, Transport & Infrastructure.
