44 Bowen Street
Private Bag 6995
Wellington 6141
New Zealand
T 64 4 894 5400
F 64 4 894 6100
www.nzta.govt.nz
22 July 2025
Stephanie Pretorius
[FYI request #31089 email]
REF: OIA-18484
Dear Stephanie
Request made under the Official Information Act 1982
Thank you for your email of 26 May 2025 requesting the fol owing information under the Official
Information Act 1982 (the Act):
I would like to request the following information for projects completed:
10 last PPP projects over $100m
- Project Name
- Scope
- Date Start
- Duration
- Original Planned End Date
- Actual End Date
- Original Budget
- Final Project cost
- $ of approved scope changes after original budget set
- What high level lean methods were applied
- KRAs and incentives
10 last Al iance projects over $100m
- Project Name
- Scope
- Date Start
- Duration
- Original Planned End Date
- Actual End Date
- Original Budget
- Final Project cost
- $ of approved scope changes after original budget set
- What high level lean methods were applied
- KRAs and incentives
2 largest projects completed in last 10 years by $ Spend
- Project Name
- Scope
- Date Start
- Duration
- Original Planned End Date
- Actual End Date
- Original Budget
- Final Project cost
- $ of approved scope changes after original budget set
- What high level lean methods were applied
- KRAs and incentives
On 24 June 2025, we provided a list of projects that fall within scope of your request and asked you to
refine your request to a manageable level. As we have not received a response from you, I am
refusing your request under section 18(f) of the Act as the information requested cannot be made
available without substantial collation or research.
However, to provide reasonable assistance, please find Attachment 1 – OIA-18484 Response which
contains publicly available information relevant to your request. Please note that some final costs are
not yet available.
In addition to the above information, I would like to confirm that NZTA does not apply lean methods in
our construction projects.
Under section 28 of the Act, you have the right to ask the Ombudsman to review my decision to refuse
this request. The contact details for the Ombudsman can be located at
www.ombudsman.parliament.nz.
If you would like to discuss this reply with NZ Transport Agency Waka Kotahi (NZTA), please contact
Ministerial Services by email to [email address]
Yours sincerely
Jackie Smith
Manager Ministerial Services
2