Representation by Cadent Gas Limited (Cadent Gas Limited)
- Date submitted
- 28 March 2023
- Submitted by
- Members of the public/businesses
Cadent Infrastructure is within or in close proximity to the development Cadent has identified apparatus within the redline boundary or within the vicinity of the proposed works: Please note that Cadent has existing easements for these pipelines which prevents the erection of permanent / temporary buildings/structures, change to existing ground levels or storage of materials etc within the easement strip. Diversions: Where diversions of apparatus are required to facilitate the scheme, Cadent will require adequate notice and discussions should be started at the earliest opportunity. Please be aware that diversions for high pressure apparatus can take in excess of two years to plan and procure materials. Where diversions of apparatus are required to facilitate the scheme, Cadent will require the party requesting the diversion works to obtain any necessary planning permissions and other consents to enable the diversion works to be carried out. Details of these consents should be agreed in writing with Cadent before any applications are made. Cadent would ordinarily require a minimum of C4/Conceptual Design study to have been carried out to establish an appropriate diversion route ahead of any application being made. Adequate land rights must be granted to Cadent (e.g. following the exercise of compulsory powers to acquire such rights included within the DCO) to enable works to proceed, to Cadent’s satisfaction. Cadent’s approval to the land rights powers included in the DCO prior to submission is strongly recommended to avoid later substantive objection to the DCO. Land rights will be required to be obtained prior to construction and commissioning of any diverted apparatus, in order to avoid any delays to the project’s timescales. A diversion agreement may be required addressing responsibility for works, timescales, expenses and indemnity. Protection/Protective Provisions: Where the Promoter intends to acquire land, extinguish rights, or interfere with any of Cadent’s apparatus, Cadent will require appropriate protection for retained apparatus and further discussion on the impact to its apparatus and rights including adequate Protective Provisions. Operations within Cadent’s existing easement strips are not permitted without approval and will necessitate a Deed of Consent being put in place. Any proposals for work in the vicinity for Cadent’s existing apparatus will require approval by Plant Protection under the Protective Provisions and early discussions are advised. Key Considerations: • Cadent has a Deed of Grant of Easement for each pipeline, which prevents the erection of permanent / temporary buildings/structures, change to existing ground levels or storage of materials etc within the easement strip. • Please be aware that written permission is required before any works commence within the Cadent easement strip and a Crossing Agreement may be required if any apparatus needs to cross the Cadent easement strip • The below guidance is not exhaustive and all works in the vicinity of Cadent’s asset shall be subject to review and approval from Cadent’s plant protection team in advance of commencement of works on site. General Notes on Pipeline Safety: • You should be aware of the Health and Safety Executives guidance document HS(G) 47 "Avoiding Danger from Underground Services", and Cadent’s specification for Safe Working in the Vicinity of Cadent High Pressure gas pipelines and associated installations - requirements for third parties GD/SP/SSW22. Digsafe leaflet Excavating Safely - Avoiding injury when working near gas pipes. There will be additional requirements dictated by Cadent’s plant protection team. • Cadent will also need to ensure that our pipelines remain accessible thorughout and after completion of the works . • The actual depth and position must be confirmed on site by trial hole investigation under the supervision of a Cadent representative. Ground cover above our pipelines should not be reduced or increased. • If any excavations are planned within 3 metres of Cadent High Pressure Pipeline or, within 10 metres of an AGI (Above Ground Installation), or if any embankment or dredging works are proposed then the actual position and depth of the pipeline must be established on site in the presence of a Cadent representative. A safe working method agreed prior to any work taking place in order to minimise the risk of damage and ensure the final depth of cover does not affect the integrity of the pipeline. • Below are some examples of work types that have specific restrictions when being undertaken in the vicinity of gas assets therefore consultation with Cadent’s Plant Protection team is essential: ? Demolition ? Blasting ? Piling and boring ? Deep mining ? Surface mineral extraction ? Landfliing ? Trenchless Techniques (e.g. HDD, pipe splitting, tunnelling etc.) ? Wind turbine installation ? Solar farm installation ? Tree planting schemes Pipeline Crossings: • Where existing roads cannot be used, construction traffic should ONLY cross the pipeline at agreed locations. • The pipeline shall be protected, at the crossing points, by temporary rafts constructed at ground level. The third party shall review ground conditions, vehicle types and crossing frequencies to determine the type and construction of the raft required. • The type of raft shall be agreed with Cadent prior to installation. • No protective measures including the installation of concrete slab protection shall be installed over or near to the Cadent pipeline without the prior permission of Cadent. • Cadent will need to agree the material, the dimensions and method of installation of the proposed protective measure. • The method of installation shall be confirmed through the submission of a formal written method statement from the contractor to Cadent. • A Cadent representative shall monitor any works within close proximity to the pipeline. New Service Crossing: • New services may cross the pipeline at perpendicular angle to the pipeline i.e. 90 degrees. • Where a new service is to cross over the pipeline a clearance distance of 0.6 metres between the crown of the pipeline and underside of the service should be maintained. If this cannot be achieved the service shall cross below the pipeline with a clearance distance of 0.6 metres. • A new service should not be laid parallel within an easement strip • A Cadent representative shall approve and supervise any new service crossing of a pipeline. • An exposed pipeline should be suitable supported and removed prior to backfilling • An exposed pipeline should be protected by matting and suitable timber cladding • For pipe construction involving deep excavation (<1.5m) in the vicinity of grey iron mains, the model consultative procedure will apply therefore an integrity assessment must be conducted to confirm if diversion is required