Sydney Harbour Tunnel (Private Joint Venture) Act 1987

The Act defines several key terms in section 2. "Commissioner" means The Commissioner for Main Roads. "Council" has the same meaning as in the Local Government Act 1993. "Sydney Harbour Tunnel" means the tunnel authorised by or constructed under the Act.

The core operational concepts are the tunnelling works, the ancillary works, and the sites on which they are carried out. The tunnelling works are described in Schedule 1 and include works carried out on the tunnelling site for or associated with the construction, maintenance and operation of a tunnel beneath Sydney Harbour, the relocation of services, environmental protection works the Commissioner considers desirable, and works ancillary or incidental to those works. The ancillary works are described in Schedule 2 and include works carried out on an ancillary site for or associated with fabrication of components, extraction, transport or storage of materials, service relocations, environmental protection, and incidental works.

The tunnelling site is defined by reference to a deposited plan in Schedule 3: all land shown by distinctive colouring, edging or hatching on the plan entitled "Plan of Land Required for Proposed Sydney Harbour Tunnel" numbered 0000 412 SS 0586, sealed by the Commissioner and deposited in the office of the Department of Main Roads. The ancillary sites are defined in Schedule 4: land shown coloured blue on the plan entitled "The Port Kembla Casting Basin Allotment Plan" numbered 0000 497 SS 0587, with an exclusion for land that is the subject of a lease to the private sector under the Ports Assets (Authorised Transactions) Act 2012.

The two financial agreements that underpin the project are the Ensured Revenue Stream Agreement (Schedule 5) and the Net Bridge Revenue Loan Agreement (Schedule 6). The Ensured Revenue Stream Agreement is between the Crown (New South Wales) and Sydney Harbour Tunnel Company Limited. It grants the company a right to receive periodic payments calculated by a complex formula involving toll receipts, projected traffic volumes, CPI and a weighted index. These payments are intended to ensure the company can meet financial obligations regardless of tunnel operation or traffic levels. The Net Bridge Revenue Loan Agreement is between the Commissioner and the same company. It provides for interest-free loans totalling approximately $117 million to be made between July 1987 and September 1992, repayable on 31 December 2022 or later, subordinated to all senior debt of the company.

Section 5 ratifies and approves both agreements, giving them statutory force. Section 7 provides that payment obligations under these agreements operate and are enforceable in accordance with their terms, notwithstanding the Frustrated Contracts Act 1978 or any other Act or rule of law. The agreements themselves contain clauses stating that the obligations are absolute, unconditional and irrevocable, not affected by any default, force majeure or other event.

The Act primarily affects the Crown in right of New South Wales, the Commissioner for Main Roads, and Sydney Harbour Tunnel Company Limited (the private joint venture company). Section 3 provides that the Act binds the Crown in right of New South Wales and, to the extent of legislative power, the Crown in all its other capacities. This means government departments and agencies must adhere to the Act's provisions.

The Commissioner for Main Roads is the key regulatory and operational authority under the Act. The Commissioner must approve tunnelling and ancillary works (s 4) and is the sole determining authority under Part 5 of the Environmental Planning and Assessment Act 1979 for these works (ss 8 and 10). The Commissioner is also a party to the Net Bridge Revenue Loan Agreement and is authorised to enter into agreements for financing, construction, development, disposition, sale, purchase, lease, licence, ownership, operation, maintenance or management of the tunnelling works, ancillary works, the sites, and the tunnel itself (s 6(2)).

Landowners in the path of the project are directly affected by the vesting provisions in section 12. On the date of assent, certain land depicted on the plan in Schedule 3 vested in the Commissioner for an estate in fee simple, freed and discharged from all prior trusts, obligations, estates, interests, contracts, charges, rates, rights-of-way or other easements. The Act expressly denies compensation for this initial vesting (s 12(3)). However, if Schedule 3 is later amended to include additional land, the Governor may by proclamation vest that land in the Commissioner, and then (unlike the initial vesting) persons other than the Crown or a council are entitled to compensation from the Commissioner, dealt with under the Public Works Act 1912 (s 12(6)-(7)). Revesting of land not needed may occur (s 13), but the Commissioner receives no compensation.

Councils are affected by section 16, which empowers the Minister to give directions to a council if the Minister is satisfied the council has exercised or failed to exercise a function in a manner substantially and unreasonably prejudicial to the carrying out of the tunnelling or ancillary works. The council must comply and is by the Act empowered to comply. This overrides ordinary local government decision-making.

Developers and owners of land along or adjacent to the tunnel course are affected by section 15. They must advise the Commissioner before commencing any development (building, demolition or carrying out of a work within the meaning of the Environmental Planning and Assessment Act 1979). They may be subject to conditions imposed by the Commissioner (with Ministerial consent) for protection of the tunnel.

Mortgagees and senior creditors of the company are affected by the security and subordination arrangements in the scheduled agreements. The Ensured Revenue Stream Agreement allows the company to give a security interest over its right to receive payments, and a first-ranking mortgagee's consent is required for amendments or variations (Schedule 5, cl 6). The Net Bridge Revenue Loan Agreement subordinates the Commissioner's loans to all senior debt, meaning senior creditors get paid first (Schedule 6, cl 6).

The Act imposes a blanket prohibition on carrying out tunnelling works or ancillary works without the approval of the Commissioner (s 4). The Commissioner may grant approval and may modify it, but only at the request of the approval holder. This gives the Commissioner gatekeeping power over the entire project.

The Crown and the Commissioner have absolute and unconditional payment obligations under the ratified agreements. Section 7 provides that any obligation to make a payment under the Ensured Revenue Stream Agreement or the Net Bridge Revenue Loan Agreement shall operate and be enforceable in accordance with its terms, notwithstanding the Frustrated Contracts Act 1978 or any other contrary law. The agreements themselves reinforce this: the Ensured Revenue Stream Agreement states the Crown's obligation is free from any right of set-off, absolute, unconditional and irrevocable, not affected by the tunnel not commencing operations, not being completed, or any interruption of Harbour Bridge operations (Schedule 5, cls 3.1 and 3.2). The Net Bridge Revenue Loan Agreement contains a similar clause for the Commissioner (Schedule 6, cl 5). These "hell or high water" obligations are a key feature of the project's financing structure.

The company (Sydney Harbour Tunnel Company Limited) has the right to receive the Ensured Revenue Stream payments calculated under Schedule 5, clause 2.1, based on a formula that deducts tunnel toll receipts from a notional amount that includes a weighted index and projected traffic volume. The company must provide statements and calculations to the Crown, with adjustments for CPI and other variables. The company also has the right to request loans from the Commissioner under the Net Bridge Revenue Loan Agreement (Schedule 6, cl 2.1), subject to conditions precedent being satisfied (including evidence of corporate authorisations, executed relevant documents, capital contribution, and Maritime Services Board lease - Schedule 6, cl 4). These loans are interest-free and repayable on 31 December 2022 or later, but only after all senior debt is paid (Schedule 6, cll 2.2-2.3 and 6.1).

The Commissioner has the right to vest land under section 12, and the Governor has power to amend Schedules 3 and 4 by regulation to vary the tunnelling site or ancillary sites (ss 18 and 19), provided any such regulation does not contravene the terms of any lease or licence entered into under an agreement referred to in section 6(2).

Development along the tunnel route imposes a duty on the developer to notify the Commissioner and to comply with any reasonable conditions imposed by the Commissioner (with Ministerial consent) for protection of the works (s 15). This duty is enforceable irrespective of whether the Commissioner has been advised of the intended development.

Councils must comply with directions given by the Minister under section 16. The Minister may give such directions if satisfied a council has acted in a manner substantially and unreasonably prejudicial to the works. The council must be notified and given seven days to make representations, but ultimately must follow the direction.

Section 17 creates a right for the Commissioner to bring proceedings (the limitation on appeals does not apply to proceedings by or on behalf of the Commissioner) while all other persons are denied the right to challenge approvals, conditions, or alleged contraventions of Part 5 of the Environmental Planning and Assessment Act.

The Act does not create criminal offences or specify monetary penalties for breach. Instead, enforcement mechanisms are found in the contractual agreements and the miscellaneous provisions.

The primary contractual enforcement mechanism is the right to payment. The Ensured Revenue Stream Agreement and the Net Bridge Revenue Loan Agreement are ratified and approved by section 5, and section 7 ensures their payment obligations are enforceable despite any contrary law. If the Crown or Commissioner fails to make required payments, the company can sue for payment as a debt. The agreements contain no mechanism for the Crown or Commissioner to suspend payments except as expressly provided (e.g., reduction under Schedule 5 cl 2.4 for savings from delayed opening or closure, or renegotiation events under cl 4).

Section 16 provides a direct enforcement mechanism against councils. A council that fails to comply with a ministerial direction may be subject to further directions, but the Act does not specify a penalty for non-compliance. However, the direction is binding and the council is empowered to comply; the Minister could potentially seek an order in the nature of mandamus to compel compliance, though section 17 limits such proceedings by third parties but not by the Crown.

Section 15 provides that development along the tunnel course must be carried out in accordance with conditions imposed by the Commissioner. If a developer fails to comply, the Commissioner could seek injunctive relief to enforce compliance or restrain breach. The Act does not create a statutory offence for non-compliance, so enforcement would rely on the general law (e.g., nuisance, trespass) or contractual arrangements if the developer has entered into an agreement with the Commissioner.

Section 17 effectively bars most judicial review remedies. The section states that no proceedings (whether for prohibition, certiorari, mandamus, declaration or injunction) lie in respect of the Commissioner's approval decisions, conditions imposed, or alleged contraventions of Part 5 of the Environmental Planning and Assessment Act. Pending proceedings are terminated, and costs are borne by each party unless otherwise agreed. This creates a significant barrier to enforcement by third parties (such as environmental groups or affected neighbours) seeking to challenge the project. The only party who can bring proceedings is the Commissioner itself.

The scheduled agreements impose obligations on the company to provide certificates, calculations and information to the Crown or Commissioner (Schedule 5, cl 5; Schedule 6, cl 3). Failure to do so could entitle the Crown or Commissioner to withhold payments or claim damages for breach of contract, but the absolute obligation clauses cut across typical remedies - the obligation to make payments remains unaffected by any default (Schedule 5, cl 3.1; Schedule 6, cl 5.1).

The Act deliberately overrides a significant body of legislation to enable the tunnel project. Section 8(1) provides that the Environmental Planning and Assessment Act 1979 applies to the tunnelling works and tunnelling site, but Parts 3 (planning instruments), 4 (development assessment) and 6 (environmental planning) are excluded and deemed never to have applied. Part 5 (environmental impact assessment) does apply, but with specific deeming provisions: the tunnelling works are deemed to require the Commissioner's approval, to be an activity, and the Commissioner is the sole determining authority. Two documents put on public display on 19 December 1986 (the environmental impact statement and addendum) are together deemed to be an EIS prepared, submitted, exhibited and considered in accordance with Part 5 (s 8(2)). Similar provisions apply to the ancillary works and ancillary sites under section 10.

Section 9(1) excludes the Coastal Protection Act 1979 and the Local Government Act 1993 (so far as building provisions) from applying to the tunnelling works. Section 9(2) provides that tunnelling works may be carried out despite anything in the Royal Botanic Gardens and Domain Trust Act 1980, the Sydney Opera House Trust Act 1961, the Crown Lands Consolidation Act 1913, or the Government Railways Act 1912 (and instruments under those Acts). Section 9(3) provides that, except to the extent regulations provide otherwise, the Maritime Services Act 1935 and the Sydney Harbour Trust Act 1900 do not apply to the tunnelling works.

Equivalent exclusions for the ancillary works are in section 11: the Coastal Protection Act and Local Government Act building provisions do not apply, and the Maritime Services Act and Sydney Harbour Trust Act do not apply except as regulations provide.

Section 14 provides that the Sydney Harbour Tunnel is not a public road or a road or road related area for the purposes of the Roads Act 1993 or any other prescribed law. However, the road transport legislation (within the meaning of the Road Transport Act 2013) applies as if it were a road or road related area. This means traffic laws apply to the tunnel even though it is not part of the public road network.

The Frustrated Contracts Act 1978 is overridden by section 7: payment obligations under the ratified agreements operate despite any provision of that Act or any other contrary law. The agreements themselves also expressly exclude the operation of laws that would otherwise terminate or excuse performance.

Section 15(4) preserves other requirements under the Local Government Act 1993, the Environmental Planning and Assessment Act 1979 or any other Act. The Commissioner's conditions under this section are additional to any other statutory requirements for development.

The vesting provisions in section 12 interact with the Public Works Act 1912: compensation claims for land vested by later amendment are dealt with under that Act (s 12(7)). The easement created by section 12(2) (to drain water) is created within the meaning of section 88A of the Conveyancing Act 1919.

The Act also interacts with the Ports Assets (Authorised Transactions) Act 2012 by expressly excluding from the ancillary sites land that is the subject of a lease to the private sector under that Act (Schedule 4, as amended in 2012).

The Act has been amended several times since its enactment. The first set of amendments were made by Act No 245 of 1987 (Schedule 1). These amendments substituted section 5 (ratification and approval of agreements) and amended section 2 (definitions) by adding subsection references, section 6 (Commissioner's powers) by adding the power to enter into agreements, and Schedules 5 and 6 (the Ensured Revenue Stream Agreement and Net Bridge Revenue Loan Agreement) by substituting them. This is recorded in the original Act's amendment notes.

The Local Government Act 1993 (Act No 11 of 1995) amended section 2 by updating the definition of "council" to refer to that Act, section 9 and section 11 by updating references to the Local Government Act 1993 and Maritime Services Act 1935, and section 15 by updating the references to the Local Government Act 1993. The amendment notes also show amendments to sections 2(1), 9, 11 and 15 by that Act.

The Traffic Legislation Amendment Act 1997 (Act No 115 of 1997) inserted section 19A (savings and transitional provisions) and Schedule 7 (savings and transitional provisions). It also amended section 14 (tunnel not a public road) by updating references. Subsequent amendments to section 14 occurred via Act No 19 of 1999, Act No 11 of 2005, and Act No 19 of 2013, which updated the reference from the Road Transport Act 2013.

The Ports Assets (Authorised Transactions) Act 2012 (Act No 101 of 2012) amended Schedule 4 by adding an exclusion for land subject to a lease to the private sector under that Act.

The most recent amendment recorded is Act No 38 of 2025, which amended Schedule 5 (the Ensured Revenue Stream Agreement). The precise nature of this amendment is not detailed in the source, only that it occurred.

Schedule 7, inserted in 1997, provides regulation-making powers for savings and transitional provisions consequent on the Traffic Legislation Amendment Act 1997 (only in relation to amendments made to this Act). Such regulations may take effect from the date of assent or later, but cannot prejudicially affect existing rights or impose liabilities on persons other than the State or an authority of the State for anything done before publication (Schedule 7, cl 1).

The Act itself pre-emptively addresses litigation. Section 17(1) provides that no proceedings (whether for prohibition, certiorari, mandamus, declaration, injunction or any other relief) may be brought in respect of any decision by the Commissioner to grant approval to tunnelling or ancillary works, any condition imposed under section 112 of the Environmental Planning and Assessment Act 1979, any alleged contravention of such conditions, any decision or step involved in granting approval or imposing conditions, or any alleged contravention of Part 5 of that Act with respect to those works.

Section 17(2) gives this provision retrospective effect: it has effect notwithstanding that any such proceedings were commenced before assent, and notwithstanding any decision in such proceedings. Section 17(3) terminates any such pending proceedings as at the date of assent. Section 17(4) provides that, unless the parties otherwise agree, costs of or incidental to terminated proceedings are to be borne by each party and cannot be the subject of any contrary court order. Section 17(5) carves out proceedings taken by or on behalf of the Commissioner, meaning the Commissioner can still bring proceedings to enforce approvals or conditions or to protect the project.

The scope of "approval" in section 17(6) is broad: it includes a consent, licence, permission or any form of authorisation, as well as a provision of financial accommodation by the Commissioner to another person (unless the regulation prescribes otherwise). This extends the bar on proceedings to cover the financial accommodation aspects of the project.

The source provides no cases or references to actual litigation. The Act's provisions suggest that any challenge to the project's approvals or environmental assessment was effectively barred from the outset, and any existing challenges were terminated. This means there is no reported litigation history under the Act in the sense of court decisions interpreting its provisions. The litigation history is essentially one of legislative ouster of the court's supervisory jurisdiction.

The Ensured Revenue Stream Agreement (Schedule 5) contains arbitration mechanisms for determining artificial CPI values and renegotiation events (Schedule 5, cls 2.3 and 4), but these are contractual dispute resolution procedures, not court proceedings. They could generate private arbitration history, but that is not public litigation.

The most significant trap for the unwary lies in section 7 and the absolute payment obligations in the scheduled agreements. The Crown's obligation to make Ensured Revenue Stream payments and the Commissioner's obligation to make loans are irrevocable and unconditional. The agreements expressly provide that they are not affected by the tunnel not being constructed, not being completed, not commencing operations, or any interruption of Harbour Bridge operations (Schedule 5, cl 3.2; Schedule 6, cl 5.2). This means that even if the project fails completely, the Crown and Commissioner must still make the prescribed payments and loans. The Frustrated Contracts Act 1978 is overridden. This is an extraordinary feature of the Act, binding the State to financial commitments regardless of project success.

Landowners whose land vested on the date of assent receive no compensation (s 12(3)). This includes the extinguishment of all prior interests, trusts, easements and charges without payment. Only if land is added to Schedule 3 later via a regulation under section 18 and subsequently proclaimed under section 12(4) does compensation become available, and then only to persons other than the Crown or a council (s 12(6)). The initial vesting is effectively uncompensated, which could be a radical power.

The limitation on appeals in section 17 is a complete bar to judicial review of the Commissioner's approval decisions and environmental assessment. Any person wishing to challenge the project is shut out. The only party that can bring proceedings is the Commissioner. This ouster clause is broad in scope, covering all forms of relief (prohibition, certiorari, mandamus, declaration, injunction) and including conditions, modifications, and alleged contraventions of Part 5. It also retroactively terminates pending proceedings and imposes cost burdens on the parties except the Commissioner.

The protection of tunnel provisions in section 15 can catch unwary developers. Any person intending to carry out development on any land along or adjacent to the tunnel course must advise the Commissioner before commencing. The Commissioner may impose conditions related to protecting the tunnel, even if the Commissioner was not advised. Failure to comply with such conditions could lead to enforcement proceedings by the Commissioner (who is not barred by s 17). The definition of "development" is broad, covering erection or demolition of a building or carrying out of a work within the meaning of the Environmental Planning and Assessment Act 1979.

The Ensured Revenue Stream Agreement's renegotiation provisions (Schedule 5, cl 4) contain strict time limits. Under clause 4.1(c), a notice to renegotiate due to a denial of tax depreciation must be given within 10 business days of receipt of the relevant income tax assessment, with time being of the essence. Missing this window may forfeit the right to adjust payments.

The Net Bridge Revenue Loan Agreement subordinates the Commissioner's loans to all senior debt (Schedule 6, cl 6). This means the Commissioner gets paid only after all other creditors of the company are satisfied. If the company becomes insolvent, the Commissioner likely recovers nothing. The Commissioner cannot even set off amounts owed (cl 6.1). Further, the loans are repayable only if the company has received all loans (cl 6.6). The Commissioner also waived its sovereign immunity from legal proceedings in respect of the agreement (Schedule 6, cl 9).

The artificial CPI provisions in Schedule 5, clause 2.3 are complex and can lead to adjustments based on estimates rather than actual published data. If the CPI is unavailable, an arbitrator may calculate an artificial figure that becomes binding. If the actual CPI is later published, it applies for future purposes but does not adjust past payments. This creates a risk of miscalculation if the arbitrator's figure deviates from the true CPI.

Compliance with the Act largely involves contractual performance by the company and exercise of powers by the Commissioner and Crown. For the company, the critical compliance obligations are: (a) obtaining the Commissioner's approval before carrying out any tunnelling or ancillary works (s 4); (b) ensuring that all conditions precedent to receiving Ensured Revenue Stream payments and Net Bridge Revenue Loans are satisfied (Schedule 5, cl 2.5; Schedule 6, cl 4); (c) providing timely statements and calculations to the Crown (Schedule 5, cl 2.2); (d) cooperating with any renegotiation processes and contesting tax assessments if required by the Crown (Schedule 5, cl 4); and (e) maintaining the corporate authorisations and registrations of relevant documents as required.

The Crown and Commissioner must comply with their absolute payment obligations (s 7, Schedule 5 cl 3, Schedule 6 cl 5). They must make payments and loans as required and cannot exercise set-off rights. The Commissioner must also exercise approval powers under section 4 in accordance with the Act, and may modify approvals only at the request of the approval holder.

Developers and owners of land along the tunnel course must comply with section 15. Before commencing any development (as defined), they must advise the Commissioner of the intended development. If the Commissioner serves a notice imposing reasonable conditions related to tunnel protection (with the Minister's consent), the development must be carried out in accordance with those conditions. This requirement is in addition to any other approvals needed under the Local Government Act 1993, Environmental Planning and Assessment Act 1979 or other Acts (s 15(4)). Failure to notify could leave the developer vulnerable to the Commissioner imposing conditions after the fact, or to enforcement proceedings.

Councils must comply with any direction given by the Minister under section 16. The Minister must first notify the council and the Minister for Local Government, and consider any representations made within seven days. The council is empowered by the Act to comply with the direction, even if the direction would otherwise be outside its powers under other legislation. The council should document the receipt of the direction and its compliance steps.

Landowners affected by vesting under section 12 should note they receive no compensation for the initial vesting. If their land is added to Schedule 3 later and a proclamation is made, they may claim compensation (other than the Crown or a council) under the Public Works Act 1912 by making a claim. They should monitor the Government Gazette for proclamations under section 12(4). The revesting provisions in section 13 may allow land not needed to be returned, but the Commissioner is not entitled to compensation for revesting.

Parties relying on the regulations under section 20 should check the current regulations for any modifications to the application of the Maritime Services Act 1935 or the Sydney Harbour Trust Act 1900 (ss 9(3), 11(2)). The regulations may also prescribe laws for the purposes of section 14(1)(b) (other Acts where the tunnel is not a road) and prescribe classes of financial accommodation excluded from the definition of "approval" in section 17(6).