Length:

32 km

Termini:

Eastern: Princes Hwy (NH1) and Old Princes Hwy, Murray Bridge

Western: Princes Hwy (South East Freeway) (NH1), Callington

Suburbs, Towns & Localities Along Route:

Murray Bridge, Monarto and Callington

Current: B55

Former: 1

General Information:

Alternative National Route 1 was a collection of separate roads in different parts of South Australia that paralleled National Route 1 or offered a different route to the same destinations, but in the case of Callington to Murray Bridge, the route is the former NR1 routing. This section of ALT-NR1 is the old Princes Highway route linking the Big River Country town of Murray Bridge with Adelaide, via the Adelaide Hills district. The importance of the route diminished with the opening of the South Eastern Fwy.

1920s: The Princes Highway was first proclaimed from Sydney to Melbourne, it was later extended through western Victoria and eventually to Adelaide.

1938: Mount Barker Rd renamed Princes Hwy. ¹

1950s: Duplication of highway between Glen Osmond and Crafers. ¹

1955: The route from the Vic-SA Border to Tailem Bend was fully sealed, National Route 1 shield implemented. ¹

1998: ALT-NR1 decommissioned and replaced by B55 with the implementation of alphanumeric route numbering.

Murrary Bridge to Callington

Black Intersection Directional Sign:

Black ID sign acting as a reassurance sign, with remnant ALT-NR1 shield at Murray Bridge, December 2003.

Image © Michael Greenslade

Trailblazer:

ALT-NR1 trailblazer on Adelaide Rd approaching Old Princes Hwy at Murray Bridge, just before the South Eastern Fwy interchange.

Image © Peter Renshaw

Trailblazer:

ALT-NR1 trailblazer on the off-ramp from Princes Hwy (South Eastern Fwy) Fwy at White Hill, approaching Adelaide Rd and Old Princes Hwy, November 2009.

Image © Peter Renshaw

Click or tap here for Alternative National Route 1 between Lincoln Gap and Ceduna
Click or tap here for Alternative National Route 1 between Millicent and Kingston SE

¹ Sam Laybutt (Ozroads).