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Temporary business operations in place, please read our company statement for more information.

Slit Trenching

Ground Investigations Ireland Ltd. has over twenty engineers with a range of qualifications including Geotechnical Engineers, Engineering Geologists and Environmental Engineers who have received in house training to allow them to carry out Slit trenching. The Engineers are selected for the project depending on the project’s primary requirements. 

Slit Trenches are generally long narrow trenches. They are commonly excavated in urban environments and on roadways to determine the position of existing underground services and the soil profile prior to carrying out planned developments. Identifying and recording the locations of services is crucial for development projects when they need to be diverted from their current position or avoided entirely. 

Our services include provision of a full report including a detailed log of each trench (in plan and cross section) and comprehensive as-built plans, compiled in accordance with the Client’s requirements.

Excavations of Slit Trenches usually combines hand excavation methods and excavation using a small mechanical excavator equipped with a toothless bucket. A suitably experienced Engineering Geologist or Geotechnical Engineer is at all times present and supervises all operations and carries out a detailed survey of the excavation features, such as; the depth, dimensions of the trench, soils strata, the nature, position, dimensions and orientation of any utilities exposed as well as any other relevant information as the excavation proceeds.

The soil is logged in accordance with Eurocode 7 Part 2 Ground Investigation and Testing (ISEN 1997-2:2007) and BS5930:2015 and soil samples are taken according to specification.

Slit Trenching jobs are mainly carried out along existing roads where local traffic and utility providers are taken into consideration. GII staff engaged on slit trenching projects have received the required training and development and hold the relevant CSCS cards such as Signing Lighting and Guarding, Location of Underground Services etc.

The engineers ensure all works by Ground Investigations Ireland on roadways are set up with appropriate Traffic Management and all service providers and local authorities are contacted and aware of the works taking place. Temporary and Permanent Immediate Reinstatements of road surfaces are undertaken in accordance with the Clients and Local Authority requirements.

Coronavirus COVID-19 Position Statement

Coronavirus COVID-19: Position Statement update for Ground Investigations Ireland Ltd

Due to the current measures put in place by the government, for the health and wellbeing of our workforce and the Public to curb the spread of Covid-19, GII have taken the following actions. 

All site works have temporarily ceased unless deemed necessary to deal with the current national Emergency, our rigs have where necessary been demobilised back to our yard. We will be continuing with works once the restrictions are lifted and will return to any site works that are incomplete. 

All of our engineers are working from home and will be able to finalise some works, there will be a limit on what can be achieved but we will endeavour to complete the works we can and get the information to our clients as promptly as possible your patience is appreciated at this time.  

We will still be accepting Tender and Pricing enquiries, if you can contact James Lombard on his mobile number below, for any other enquiries please contact one of the mobile numbers or e-mails listed below. 

Thank You for your support and we wish you and your employees and families the best and hope that you remain safe during this period.

James Lombard

Fergal McNamara

Barry Sexton

Conor Finnerty

Aisling Mc Donnell