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Distance sign showing decommissioned route NR12, Pinnaroo. Image © Peter Renshaw

This page covers routes located across South Australia that have had their route numbers decommissioned.

Route numbers are usually decommissioned because their importance has diminished or the numbering system becomes defunct.

A21
Alphanumeric Routes	National Highways	National Routes
The route numbers preceeded by a letter to indicate standard and route importance.	The green and gold route markers indicate routes which are part of the National Highway System. They indicate the most direct routes between major cities.	The black on white markers indicate highways around Australia which are not part of the National Highway System but are still of some national signifcance.

Last updated: 25-Sep-2020 0:33

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