GrantedDecision recorded
Telecoms, Existing Cashla - Dalton 110kV overhead power line, Dalgan Demesne...
EirGrid PLC, with the consent and approval of the Electricity Supply Board (ESB), intends to apply for permission for works to uprate the existing Cashla - Dalton 110 kV overhead line (OHL). Within County Mayo, the proposed development will take place within the following townlands: DALGAN DEMESNE, POLLBAUN, CARROWBEG WEST...
The public decision state is shown, but conditions and later amendments can still change delivery scope.
Package signals below are limited to wording in the public application record.
No tender, award, contractor appointment, supplier appointment or procurement timetable is inferred.
Opportunity & supplier intelligence
What is known, and what may happen next
Timing is a planning-stage outlook, not a tender, award, contractor appointment, supplier appointment or guaranteed procurement date.
A planning decision is recorded and no linked commencement is indexed. Conditions, procurement and start timing remain unconfirmed.
Decision date 1 Dec 2025. / Confidence: LowDecision date 1 Dec 2025.
No commencement indexed / This is an index state, not proof that no works have started.
Source limitedNo drawing entry is available in this lead's bounded document evidence.
Source limitedConfirmed scope
Confirmed application scope
EirGrid PLC, with the consent and approval of the Electricity Supply Board (ESB), intends to apply for permission for works to uprate the existing Cashla - Dalton 110 kV overhead line (OHL). Within County Mayo, the proposed development will take place within the following townlands: DALGAN DEMESNE, POLLBAUN, CARROWBEG WEST, GORTEENS, SEEFIN, BROOKHILL, CARROWMORE, BALLYHANKEEN, RUSHBROOK EAST, BALLYCUSHEEN, SCARDAUN WEST, MILLBROOK, MILFORD DEMESNE, CURRAGHADOOEY, LISDUFF, RATHGRANAGHER (MILLER), DRUMMIN WEST...
Named firms
Public source roles
No named firm role is published in this panel's source contract. PlanningBrief does not infer a contractor or supplier.
Evidence-backed work packages
Explicit source signals only
No work package meets the explicit source, reference and locator threshold. PlanningBrief does not pad this list with generic trades.
Confidence & provenance 0 official sources
- Authority
- Mayo County Council
- Exact reference
- 2560709
- Evidence reviewed
- 2 Jun 2026
- Confidence
- Source-linked
Facts come from the indexed public planning record and any bounded structured document evidence. No request-time official fetch, tender, award or appointment inference is used.
Application-stage scope
1 source-supported signalsWhat the public record evidences
Telecoms
The public application record identifies telecoms in the submitted planning scope.
Only source-supported scope signals are shown; generic trade padding is omitted.
Open official planning file eplanning.ie
More actions
Project facts
Named source parties
- Promoter
- not included in reference feed
- Planning agent
- not included in reference feed
Explore the area
More Mayo planning activity
These are county discovery links, not claimed relationships to this application.
Official description
Application text
EirGrid PLC, with the consent and approval of the Electricity Supply Board (ESB), intends to apply for permission for works to uprate the existing Cashla - Dalton 110 kV overhead line (OHL). Within County Mayo, the proposed development will take place within the following townlands: DALGAN DEMESNE, POLLBAUN, CARROWBEG WEST, GORTEENS, SEEFIN, BROOKHILL, CARROWMORE, BALLYHANKEEN, RUSHBROOK EAST, BALLYCUSHEEN, SCARDAUN WEST, MILLBROOK, MILFORD DEMESNE, CURRAGHADOOEY, LISDUFF, RATHGRANAGHER (MILLER), DRUMMIN WEST, CARROWBEG EAST, RATHGRANAGHER (LINDSAY), CROSSBOYNE, KILBEG-MALONE, DAVROS, DERRY, CLARE, GREAGHANS, COOLROE, ROOS, LEEDAUN The Cashla - Dalton 110 kV OHL circuit runs through County Galway and County Mayo. It is 57.7 km in length and travels from Cashla 110 kV substation in Barrettspark in central County Galway and traverses northwest to the Dalton 110 kV substation (County Mayo). The OHL has a total of 271no. supporting structures. Within the functional area of Mayo County Council, there is 24.7 km of the existing OHL circuit, with 111no. structures. Within the functional area of Galway County Council there is 33.0 km, with 160no. structures. Separate planning applications will be lodged with Galway County Council. The proposed development within Co. Mayo will comprise: • the replacement (“restringing”) of the existing OHL circuit conductor wires with a new higher capacity conductor between structure no. 160 and Dalton 110 kV substation; • the replacement of angle masts in-situ at 6no. locations, with similar structures; • the strengthening of tower foundations at 2no. locations; • the strengthening of towers (i.e., member replacement) at 6no. locations; • the painting of towers at 7no. locations; • shear block remedial works of a tower at 1no. location; • the replacement of polesets at 83no. locations, with similar structures. The change in structures will result in standardised heights from 16 m to 23 m along the circuit. The majority of the height increases will be between 0.1 m and 2.0 m (at 70no. structures), with 12no. structure replacements resulting in no change in height. Structure no. 263 will increase in height by 7.0m; • the replacement of insulating and ancillary hardware at all structures from structure no. 161 to 271; • the replacement of earthwire between structure no. 261 and structure no. 271; • the replacement of stay wire / anchors and associated fittings at 7no. locations; • the replacement of crossarms at 7
Source-aware chronology
Empty lanes explain their state.Application to site progress
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Applied 9 Oct 2025 2560709
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Decision Conditional 1 Dec 2025
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Appeal No appeal indexed No public appeal record is indexed against this application.
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Commenced No commencement indexed No reliable public commencement record is indexed against this permission.
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Completed Completion not recorded No privacy-cleared exact completion certificate is linked to this permission. Absence is not evidence that the project is incomplete.
Evidence register
Public planning recordSource, scope and limits
Application description and scale 2560709
EirGrid PLC, with the consent and approval of the Electricity Supply Board (ESB), intends to apply for permission for works to uprate the existing Cashla - Dalton 110 kV overhead line (OHL). Within County Mayo, the proposed development will take place within the following townlands: DALGAN DEMESNE, POLLBAUN, CARROWBEG WEST, GORTEENS, SEEFIN, BROOKHILL, CARROWMORE, BALLYHANKEEN, RUSHBROOK EAST, BALLYCUSHEEN, SCARDAUN WEST, MILLBROOK, MILFORD DEMESNE, CURRAGHADOOEY, LISDUFF, RATHGRANAGHER (MILLER), DRUMMIN WEST, CARROWBEG EAST, RATHGRANAGHER (LINDSAY), CROSSBOYNE, KILBEG-MALONE, DAVROS, DERRY, CLARE, GREAGHANS, COOLROE, ROOS, LEEDAUN The Cashla - Dalton 110 kV OHL circuit runs through County Galway and County Mayo. It is 57.7 km in length and travels from Cashla 110 kV substation in Barrettspark in central County Galway and traverses northwest to the Dalton 110 kV substation (County Mayo). The OHL has a total of 271no. supporting structures. Within the functional area of Mayo County Council, there is 24.7 km of the existing OHL circuit, with 111no. structures. Within the functional area of Galway County Council there is 33.0 km, with 160no. structures. Separate planning applications will be lodged with Galway County Council. The proposed development within Co. Mayo will comprise: • the replacement (“restringing”) of the existing OHL circuit conductor wires with a new higher capacity conductor between structure no. 160 and Dalton 110 kV substation; • the replacement of angle masts in-situ at 6no. locations, with similar structures; • the strengthening of tower foundations at 2no. locations; • the strengthening of towers (i.e., member replacement) at 6no. locations; • the painting of towers at 7no. locations; • shear block remedial works of a tower at 1no. location; • the replacement of polesets at 83no. locations, with similar structures. The change in structures will result in standardised heights from 16 m to 23 m along the circuit. The majority of the height increases will be between 0.1 m and 2.0 m (at 70no. structures), with 12no. structure replacements resulting in no change in height. Structure no. 263 will increase in height by 7.0m; • the replacement of insulating and ancillary hardware at all structures from structure no. 161 to 271; • the replacement of earthwire between structure no. 261 and structure no. 271; • the replacement of stay wire / anchors and associated fittings at 7no. locations; • the replacement of crossarms at 7
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