Site Verification Survey in Cootehill, Ireland

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Project summary:

Murphy Geospatial provided the architectural design team with a full underground utility package identifying the locations of underground services using a number of techniques reducing risk and improving the overall project confidence. CCTV inspection delivered a structural and operational report highlighting the defects noted in the drainage infrastructure.


The brief:

Sweeney Architects requested Murphy Geospatial to support their subsurface investigation needs. As part of the utility package, Murphy Geospatial carried out a site verification survey consisting of slit trenches verifying the locations of the utility assets


The challenges:

One of the slit trenches located in a softscaping area used by residents for recreational activities had to be   protected, the use geotextile membranes helped avoid any damages to the surface.

Concerns raised that concrete segments that were not identified during previous surveys – due to the congestion of services – could increase the likelihood of a strike if the segments moved. In this case, we used hand dig assistance where it was needed.


Our work:

An on-site presentation of the underground utility dataset with the client allowed us to interact and demonstrate our knowledge and expertise, providing recommendations where slit trenches were required to reduce any engineering difficulties that could have been encountered if not explored through excavations.

The site visit identified the locations for the intrusive surveys and helped decide on the methodology needed. Excavations were carried out with the conventional use of an excavator as it was agreed this was the most realistic approach, considering that each trench needed to exceed great depths.


Results:

At the start, the client placed an emphasis on detection, location and verifying the whereabouts of rising main due to its importance in the design. The hierarchy approach encountered the anomalies in this project at an early stage. The final survey being a site verification helped us to reduce risk as the project develops.

A number of buried manholes were exposed and finding the location of the rising mains and storm lines meant we were able to capture the data effectively and analyse the findings to determine the routes needed to incorporate additional services.

This successful project highlighted our reputation in delivering services to equip our clients with the data and information they need to make accurate decisions at every step. Murphy Geospatial is able to draw on the skills and experience of our people to deliver certainty our clients can trust.





Contact:

For more information on this project, please contact Colum Connolly at cconnolly@murphygs.ie or +353 86 130 0398


  • Client

    Sweeney Architects

  • Sector/Market

    Construction

  • Services

    Subsurface Investigation

  • Location

    Cavan, Ireland

" Verifying the position and route of existing underground utilities, including a rising main, through a non-intrusive survey was crucial for planning purposes however, using this information to identify suitable locations for slit trenches and carrying out the excavations was essential to identify the diameter, material, depth and condition of the services and inform our proposed connections. The survey was carried out extremely efficiently, the information was presented intuitively and the reinstatement was carried out to a high standard which reflects Murphy Geospatial’s passion in shaping the future of intrusive utility surveys. "

Adrian Clarke, Sweeney Architects

Services Used

Service Image

Subsurface Investigation

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