# Awaroa Sill, Ruamāhanga Awa Publisher: CapexCue Canonical dossier: Dossier reference: release 1 (450ff4c0-6ba4-453b-90c5-16f568a3b684) Released project intelligence Oldest supporting observation: 2026-10-02T13:30:32.524561+00:00 Dossier released: 2026-10-15T17:22:40.981500+00:00 Source report dates and capture dates are listed per fact below; neither establishes an event date. ## Project summary Greater Wellington identifies Awaroa Sill on the Ruamāhanga Awa as an existing spillway structure affected by river erosion along the bank. The page describes the sill’s role in controlling flow into the spillway during high flow and reducing downstream flood risk. The stated plan is to move the sill farther from the river edge and construct 10 rock groynes, each weighing 200 tonnes, to divert flow and limit further lateral channel movement. The page reports that enabling works have begun and forecasts completion in 2026; it does not confirm completion. In programme-level context, Greater Wellington and Kānoa agreed to co-fund 16 flood-resilience projects following Budget 2024. The introductory text also says all programme projects have resource consent. Neither statement provides an Awaroa-specific funding allocation or consent details. ## Evidence limits and unknowns - Exact site boundaries, coordinates, land ownership and access arrangements are not provided. - The project-specific budget or funding allocation, contract award, procurement package and purchasing timetable are not stated. The contractor information is programme-level and does not confirm an Awaroa Sill contract. - The page does not say when enabling works began or provide a later project-specific progress update confirming whether the proposed works have proceeded, changed or been completed. Completion in 2026 is presented as due, not achieved. - Detailed engineering design, quantities beyond the stated groyne number and weight, and ecological effects or mitigation are not supplied. - The supplied text gives no date for an Awaroa-specific update. The visible 29 May 2026 update timestamp belongs to the shared communities section, not the Awaroa project entry. - This evidence covers the selected project section, front matter and shared sections, not the complete source page or independent corroboration. Other project sections and linked materials were not supplied for review. Current purchasing availability: unknown. Source-dated plans do not establish current progress or available supplier packages. ## Project metadata Country: New Zealand Region: Oceania Physical assets: Not classified Derived from the exact released evidence; unresolved fields remain unclassified. ## Project category Water and environment Derived from the reviewed scope statement; delivery stage remains unclassified. The proposal is to reposition the existing sill farther back from the river edge and build 10 rock groynes, each of 200 tonnes, in front of it. The stated purpose of the groynes is to deflect flow away from the sill and reduce further lateral movement of the channel. Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 Project overview Oldest decisive evidence: 2026-10-02T13:30:32.524561+00:00 Newest evidence: 2026-10-02T13:30:32.524561+00:00 Knowledge reviewed: 2026-10-15T17:22:40.540853+00:00 Publication reviewed: 2026-10-15T17:22:40.540853+00:00 ## Name Awaroa Sill, Ruamāhanga Awa Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Scope The proposal is to reposition the existing sill farther back from the river edge and build 10 rock groynes, each of 200 tonnes, in front of it. The stated purpose of the groynes is to deflect flow away from the sill and reduce further lateral movement of the channel. Status: planned Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Country New Zealand, as stated in the surrounding flood-resilience programme context. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Activity The page says lateral river erosion has undermined the bank and reached the edge of the existing sill. The sill controls the volume and speed of water entering the spillway, particularly during high flow, reducing downstream flood risk. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Delivery The page reports that enabling works have begun and that the project is due to be completed in 2026. The completion statement is a forecast, not confirmation of completion. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Location At the existing Awaroa spillway sill on the Ruamāhanga Awa. The broader programme is described as spanning Wairarapa and Ōtaki, but this section gives no coordinates or more precise site boundaries. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Contractor Shared programme context only: Mills Albert is described as appointed lead contractor for Greater Wellington’s flood-resilience projects. The supplied text does not expressly confirm the contractor appointment or contract scope for Awaroa Sill. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Investment Programme-level context: Greater Wellington and MBIE’s Regional Economic Development and Investment Unit, Kānoa, agreed to co-fund 16 flood-resilience projects. The page does not give an Awaroa Sill-specific allocation or cost. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Regulatory The project is presented among the programme’s sites; the introductory programme text says all projects have been granted resource consent. No consent details or dates are given for this site. Status: reported Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Next Milestone Completion is due in 2026, according to the project section; no intermediate milestone is specified. Status: planned Attribution: Greater Wellington Regional Council project narrative Source: Greater Wellington Regional Council own-text flood protection records — https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/flood-resilience-projects/ | published unknown | observed 2026-10-02T13:30:32.524561+00:00 ## Cite this dossier CapexCue — Awaroa Sill, Ruamāhanga Awa — dossier released 2026-10-15T17:22:40.981500+00:00, release 1 (450ff4c0-6ba4-453b-90c5-16f568a3b684) — https://capexcue.com/projects/awaroa-sill-ruamahanga-awa-d9e17d53f819d40a/. For current information and later dossier updates, visit . This file records the release identified above; the current dossier may change.