Department of State GrowthTransport

Infrastructure Investment Plan

State roads policy, objectives and investment streams

The State Road Network is Tasmania’s largest service utility. It has an estimated replacement value of $7 billion, services over 370 000 customers and consists of 3 700 kilometres of roads and 1 300 bridges and major structures.  Detailed information on state roads assets can be found in the State of Our Roads report.

The network primarily consists of roads that provide connectivity between cities, major towns, rural catchments and key ports and airports.

To plan and manage this network within a clear and strategic framework, the Department of State Growth has applied a five-tier State Road Hierarchy.

The Tasmanian State Roads Ten Year Infrastructure Investment Plan (the Investment Plan) is an important part of the state roads integrated asset management framework, which is currently being progressively improved in line with international best practice standards.

The goal of the Investment Plan is to deliver sustainable, affordable and appropriate levels of service to state road customers in accordance with the State Roads Infrastructure Service Policy and State Road Network Level of Service Framework.

The sustainability of these levels of service depends on two primary factors:

  • a sustainable and efficient level of investment in state road asset maintenance and asset replacement
  • a highly disciplined infrastructure upgrade program that delivers outcomes at least cost and which takes into account resulting increases in long-asset maintenance and replacement costs.

The relationship between the Investment Plan, the state roads asset management system and broader policies is shown in the diagram below.

Investment Plan chart

The Investment Plan consists of six investment streams to address strategic State Road Network challenges to be addressed by the Department of State Growth over the next ten years and beyond:

This Investment Plan will be reviewed annually to maintain its ten year time horizon, confirm that it continues to reflect government policy objectives and the best available demand, asset and financial modelling forecasts and to ensure it continues to deliver customer levels of service in the most efficient way.