Engineering Interfaces

Port Ellen dredging links phased harbour access to verification

Published 6 September 2026 Publisher IMWO Region Europe Confidence Confirmed
Port Ellen CMAL Islay dredging interface diagram showing access, excavation, disposal records and survey verification as separate steps

IMWO original Port Ellen engineering interface diagram from dated owner and permission documents; not a navigation chart or acceptance record

CMAL reports Phase 3 dredging begun at Port Ellen. Harbour access, excavation, disposal records and surveys connect the marine workfront to existing port users; neither channel acceptance nor terminal completion has been established.

Phase 3 has an anticipated two-week workfront

The 4 September owner notice anticipates around two weeks of Phase 3 dredging before Phase 4. It identifies a buoyed inner-harbour route and daytime barge-master radio channels. South-side berth restrictions date from June and are distinct from the September dredging phase. The announced duration is not a measured completion percentage or a certified depth.

Excavation creates a verification interface as well as an access interface

The July owner account describes environmental monitoring, disposal tracking and post-completion surveys. These procedures are not independent acceptance results. Original licence MS-00011157 provides a record-keeping and survey framework, but its disposal wording differs from the July owner account. An operative amendment or other permission would be needed to reconcile those documents before identifying a definitive current route; the difference alone does not establish a breach.

Evidence conclusion

Harbour powers, marine permission and field delivery remain separate

Transport Scotland's harbour-order decision covers terminal redevelopment powers and ferry, commercial and passenger interfaces. It does not replace individual marine licence conditions. The March owner contract names McLaughlin & Harvey for the wider construction package, including reclamation, berthing infrastructure and operating facilities, without establishing a separate dredging price, selected dredger or subcontract allocation. Project-specific disposal records, surveys and acceptance documentation would establish output beyond the reported phase transition. An original authorised maximum or fleet list is not actual output or mobilisation.

Outstanding evidence

  • Dated transition between the marine workfronts
  • Operative marine permissions and any variations
  • Project-specific disposal tracking and survey records
  • Acceptance evidence and terminal operating interfaces

Related records 1

Subject index

Related subjects

These subject pages bring together related projects, technical articles, reports, and evidence methods.

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