Work category 322: Replacement of bridges and structures

Introduction

This work category A type of activity – not confined to a particular activity class, e.g. new roads (work category 323) appears in:

* activity class 12 – local road improvements
* activity class 13 – state highways improvements provides for the upgrade or replacement of existing bridges A structure designed to carry a road or path over an obstacle by spanning it. This includes culverts with a cross-sectional area greater than or equal to 3.4 square metres. and other road structures, where this is the main purpose of the work.

This definition applies to the 2012-15 NLTP A National Land Transport Programme Interrelated and complementary combination of activities that, when delivered in a coordinated manner, produce synergies – can span more than one work category and more than one activity class, e.g. a programme could include a road improvement and public transport improvement activities. adopted by the NZTA under section 19 of the LTMA, as from time to time amended or varied .  For the 2015-18 NLTP please refer to the updated definition for work category 322.

Examples of qualifying activities

Examples of qualifying activities include, but may not be limited to:

• replacing a structurally inadequate bridge
• replacing a bridge for non-structural reasons, such as inadequate width or waterway
• modifying an existing bridge to increase its structural capacity to a level higher than originally provided
• widening an existing bridge
• approach work estimated to cost less than $50,000
• for local road projects property purchase costs less than $50,000
• replacing retaining structures, including sea walls, that support a road
• replacing tunnels
• replacing culverts One or more adjacent pipes or enclosed channels running across and below road formation level having a cross-sectional area less than 3.4 square metres. having a cross-sectional area of 3.4 square meters or greater, and
• sealing bridge approaches on unsealed roads, where:
  • the approach sealing is limited to a maximum distance of 50 metres from each abutment An end support of a bridge or similar structure. , and
  • the seal continues over the entire structure to ensure consistency of skid resistance.

Other potential activities not shown above should be discussed with the NZTA for eligibility.

Exclusions

Exclusions include:

• the provision of a new bridge or other structure where no structure presently exists – these are funded under Work category 323: New roads.
• replacement of a cattle stop – this is funded under Work category 215: Structures component replacements, and
• maintenance of existing retaining structures should be conducted under Work category 114: Structures maintenance.

Funding assistance rate

The usual funding assistance rate for this work category A type of activity – not confined to a particular activity class, e.g. new roads (work category 323) appears in:

* activity class 12 – local road improvements
* activity class 13 – state highways improvements is:

• the Approved Organisation’s  construction rate,
• the Approved Organisation's special purpose roads construction rate, and
• 100 percent for the NZTA (state highways).

End of year carryover

Transport Investment Online (TIO The NZTA's web-based funding allocation system. ) will automatically carryover the unspent allocation every year.  Therefore it is vital that Approved Organisations and the NZTA (State Highways) declare the unused allocation for completed projects by making a cost scope adjustment via the Reviews module in TIO The NZTA's web-based funding allocation system. .

NB A future upgrade to TIO The NZTA's web-based funding allocation system. will allow the project to be marked as completed.

Conditions

The conditions for replacement of bridges A structure designed to carry a road or path over an obstacle by spanning it. This includes culverts with a cross-sectional area greater than or equal to 3.4 square metres. and structures include:

• the cost of proposed replacement must be checked against the NZTA’s policy on uneconomic roading facilities.
• new or replacement bridges A structure designed to carry a road or path over an obstacle by spanning it. This includes culverts with a cross-sectional area greater than or equal to 3.4 square metres. proposed for funding from the NLTF The fund established under section 10 of the LTMA must conform to the requirements of the NZTA’s Bridge manual. The NZTA may approve a specific departure from these design standards in terms of its policy on uneconomic roading facilities.