111km MMC-VB spur connecting the Hunter directly to the Phase 0 corridor at Muswellbrook hub. Direct freight and maglev access between Newcastle and the Phase 0 spine. Marginal cost to the Phase 0 programme — the Megafactory and rig fleet establishment costs are absorbed by Phase 0; Phase 0-1 is incremental production from a facility already running.
| Corridor | Newcastle → Maitland → Muswellbrook (Phase 0 hub) |
| Length | 111km |
| Configuration | MMC-VB — dual-leg, two-deck viaduct (same as Phase 0) |
| Services | Same as Phase 0 — freight, maglev, HVDC, gas, hydrogen, fibre, water, hyperloop reservation |
| Cost — Stage 1 (freight viaduct) | Pending review |
| Cost — full MMC-VB | Pending review |
| Production engine | Newcastle Megafactory — directly adjacent to corridor start |
| Establishment cost | Zero — absorbed by Phase 0 |
Route alignment is indicative. The corridor shown on the project map is a suggested alignment based on the current planning case. Final geometry is subject to detailed engineering — terrain survey, geotechnical analysis, environmental and cultural heritage assessment, and stakeholder consultation will determine the final alignment at detailed design.
Project-specific memos for Phase 0-1 are in active engineering development. Memo 4 (SBC Phase 0 Maglev vs HSRA) on the Phase 0 page includes Phase 0-1 in its head-to-head comparison with HSRA Line 1 — the Phase 0-1 Hunter spur provides the direct Newcastle–WSA corridor comparison to HSRA's 194km Sydney–Newcastle proposal.
System-level memos applicable to Phase 0-1 are catalogued in the Library — the same Megafactory, transmission tower architecture, and foundation system used for Phase 0 apply unchanged.
Project-specific Phase 0-1 documentation — including the Hunter spur route specification, the Newcastle hub configuration, and the Phase 0-1 commissioning sequence — is in active engineering development and will be added here as released.