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Service

Fibre and telecoms civils

Civils for fibre and telecoms networks, from street-by-street rollouts to duct routes into data centres and business parks. We install sub-duct through existing ducts, clear blockages, lay new duct and chambers where the route needs them, install fibre cable where the work includes it, and reinstate the ground behind us.

Discuss a project
A Marble CAT mini excavator loading spoil into a tipper inside fenced works.
Mini excavator loading a tipper
Finished concrete footway beside a main road, with barriers and cones still in place.
Finished footway, traffic management in place
A Clegg impact tester reading taken on the compacted sub-base inside the formwork.
Clegg impact test on the sub-base

Scope

Work included

  • Rodding and roping existing ducts, and installing distribution and feeder sub-ducts through them
  • Clearing silt and debris from chambers so ducts can be rodded
  • Locating and clearing duct blockages, opening up the ground where a blocked section must be bypassed
  • Trial holes to locate and record existing services
  • New HDPE duct by open trench in grass, footway and carriageway, including road crossings
  • Footway chambers
  • Fibre cable installation in sub-duct, where the work includes it
  • Temporary and permanent reinstatement of grass, paving slabs, block paving, concrete and carriageway

Where customers use it

  • Fibre-to-the-building and broadband rollouts on existing ESB and eir duct networks, street by street.
  • Duct routes and connections for data centres, business parks and industrial estates.
  • Housing estates, new developments and town centres where every opening has to be closed and reinstated quickly.

Interfaces

Scope boundaries

  • Fibre splicing, testing and network design are carried out by others.
  • Routes, duct specifications and chamber types come from the network operator and the main contractor. Materials can be supplied by us or free-issued, as the works require.
  • We work to the network operator’s and main contractor’s processes, inductions and audits.

Delivery

How we deliver it

  1. Each route or street is planned, carried out and closed out on its own, to a programme agreed with the main contractor.

  2. Before excavation, we check the service drawings and scan the dig line with a cable locator and signal generator. Trial holes confirm the position of existing services where the drawings are uncertain.

  3. Every opening has a temporary traffic management plan to Chapter 8 of the Traffic Signs Manual, including the route for pedestrians.

  4. Crews complete the network operator’s inductions before working on its network, and take part in the safety and quality audits that go with it.

Handover

What you receive at completion

Records are checked before they are issued to you.
  • Completion records in the format the network operator’s mapping requires.
  • Photographs of existing condition before work, of the open excavation, and of the finished reinstatement.
  • Sub-duct and duct lengths, and the location of each chamber and opening.

Evidence

Related work

Fibre network civils for SIRO and National Broadband Ireland

Fibre civils across Dublin and the neighbouring counties, carried out street by street from the main contractors’ work instructions. Much of the work put new sub-duct into existing ESB and eir ducts, with blockage clearance, new duct and chambers where the route needed them, and reinstatement behind every opening. It included duct routes for data-centre connections and work inside business parks.

Read the work example

Other services

Contact

Discuss a fibre and telecoms civils project

Tell us where the work is, what it involves and when it starts. We will come back to you to talk it through.

Discuss a project Call +353 87 409 8263Email info@marbleutilities.ie