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This page relates to the 2021-24 National Land Transport Programme.


Work category 113 provides for the routine care of drainage facilities to maintain their function.

Qualifying activities

Work category 113 is available to the road maintenance activity classes:

  • local road maintenance
  • state highway maintenance

Local road and state highway maintenance

Examples of qualifying activities

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

  • cleaning of kerbed water channels, sumps and cesspits in urban areas (30 percent of total cost – see below)
  • routine maintenance, repair and reinstatement of surface water channels and routine maintenance and repair of sub-soil drains
  • stream clearing and debris removal to maintain water courses through culverts (cross-sectional area less than 3.4 square metres)
  • removal of berms impeding drainage.

You can discuss with us (Waka Kotahi NZ Transport Agency as investor) whether other potential activities not listed above might also be eligible for inclusion in this work category.


Work category 113 excludes:

  • the general sweeping of the carriageway surface on both state highways and local roads
  • the full cost of sweeping to remove surplus chip immediately following resealing – this is part of the maintenance chip seal project cost funded under work category 212
    Work category 212: Sealed road resurfacing
  • maintenance of land drains. Even though land drains may be situated in the road reserve, their maintenance is the responsibility of the relevant drainage authority. However, if the drains are also used as road drainage facilities, then we may approve funding assistance under this work category on the basis of the proportion of the catchment areas.

Funding assistance rate

The usual funding assistance rate (FAR) is:



  • 100% of the Waka Kotahi state highway costs.

Submitting activities for National Land Transport Programme (NLTP) consideration and funding approval

Approved organisations and Waka Kotahi (for its own activities) submit their routine drainage maintenance activities for NLTP consideration and funding approval using the maintenance, operations and renewals module in Transport Investment Online.

Transport Investment Online(external link)

Street cleaning

Waka Kotahi policy is that funding assistance will be provided for 30 percent of the total cost of cleaning channels, sumps and cesspits in urban areas, as an approximation of the benefit to the road and its users. See Diagram 1.

  • Approved organisations only show the 30 percent of the total expenditure that is eligible for funding assistance in their transport programmes.
  • The 30 percent component of the total cost of cleaning on state highways in urban areas is funded within the state highway maintenance programme.
  • The remaining 70 percent will remain an approved organisation amenity cost with no funding assistance.

Diagram 1: Funding assistance for routine drainage maintenance