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UNDERSTANDING THE PAST IS THE KEY TO DESIGNING THE FUTURE

Understanding the history of a site in terms of natural and man made history will assist in determining the suitability for the proposed end use.  

For example, geological processes may have resulted in the site being a rich source of useful or potentially hazardous materials.  Exploitation of  these natural materials by man can result in the presence of unstable mineworkings (e.g. flint, salt, lead, iron, coal etc.), infilled quarries (sandstone, limestone, sand and gravel etc.) or other geohazards. 

In addition, the geological history of the site may indicate that some parts of the site are historically prone to slope instability or flooding or be underlain by shrinkable soils or soluble rocks (evaporite deposits such as gypsum for example).  

Historic human influence on site can range from ancient earthworks/fortifications, roads and railways, various forms of habitation, water management including aqueducts /mill races, dams and weirs, farms, houses, mines, factories etc.  Historic maps such as those produced by the Orndnance Survey may tell part of the story, but the frequency and detail of the survey can mean that important phases of development either predate the maps or occur between the typical 20 year cycle of the Ordnance Survey.  Modern large scale OS maps are often lacking in detail.

A good quality desk study can help mitigate risks and inform the developer regarding the economic viability of the site.

• Provision of geotechnical services of an experienced geotechnical engineer for ground investigation and earthworks design and supervision.  

• Report writing including Desk Study / Preliminary Sources Study Report (PSSR) compilation, Ground Investigation Reports (GIR), Geotechnical Design Reports (GDR) and preparation of Geotechnical Feedback Reports in accordance with DMRB CD662 (previously HD22/08).

• Preparation of logs, laboratory schedules etc.

• Previous Clients \ Projects include: 

  • Capita Real Estate and Infrastructure - Sunderland City Council - Sunderland Strategic Transport Corridor - Phase 3 (SSTC3) - Earthworks Supervisor

  • WYG - Durham County Council - Pelaw Wood Landslip Remediation.

  • SWECO - (Formerly Grontmij)  - Forth Replacement Crossing (Queensferry Crossing) 

  • SWECO - A1 Scotswood to North Brunton (A1 SW2NB) preliminary ground investigation.