Underground Utility Mapping for Gas Networks Ireland

Underground Utility Mapping for Gas Networks Ireland

About This Project

Gas Networks Ireland contracted Murphy Surveys to carry out a non-invasive survey to map existing underground utility services, which may have required relocation or protection during the construction of the Eastwall to Coolock gas pipeline. The results of the survey were also used for the estimation of quantities for the construction project, and as the basis for the design of the pipeline.
Various techniques were employed to meet the objectives including sonde surveys, radio detection surveys and ground penetrating radar surveys, as well as referencing existing records.
Murphy Surveys implemented a traffic management plan, obtained work permits form DCC, and liaised an Garda Siochana, as well as various utility providers.
The solution included the following:
– Investigation and mapping of all surface and sub-surface utilities and utility apparatus, using non-destructive, non-invasive methods, including within buildings.
– Preparation of digital survey drawings and a utilities database.
The project was delivered within the required project time frame with all deliverables meeting the project specification in terms of accuracy, completeness and client expectation.


Gas Networks Ireland

Survey Type

Ground Penetrating Radar (GPR), Underground Utility, Pipeline




10 km


3 Months


Leica 1200 Series Total Station, Trimble R6 GPS, IDS RIS MF Ground Penetrating Radar System, RD4000 Radio Detection Locators


Case Studies, Subsurface Engineering
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