mining

An Innovation in Cornish Property Risk Assessment

Terrafirma collaborates with Cornish Mining Experts to bring new Ground Report to the South West

Cornish mining expert, Cornwall Consultants and national mining and ground report specialist, Terrafirma, have announced a collaboration that sees the launch of a new Ground Report combining leading digital mapping and data analysis with ‘on-the-ground’ experience and expertise to bring clarity to the current confusion among property buyers across Devon and Cornwall caused by the disparate mix of products available to them.

The Ground Report from Cornwall Consultants will see customers benefit from the widest range of the latest ground stability information relating to coal and non-coal mining, natural ground issues and even fracking combined with a vast mining archive and wealth of experience working in the region. The Ground Report includes an expert professional opinion, risk assessment and risk transfer and satisfies new Mining and Ground Perils guidance in the Law Society Conveyancing Handbook.

Sinkhole Appears in Rugby Pitch in Swansea

A sinkhole which is said to have collapsed on the 14th February 2018 appeared in the corner of one of the Morriston RFC rugby pitches in Heol Gwernen, Cwmrhydyceirw.

Analysis of the Harrington Sinkhole, Cumbria

On the 4th January 2018, a 1.2m deep, 0.6m wide ‘’sinkhole’’ opened next to the Whitehaven – Workington railway line, near the coastal village of Harrington in Cumbria. For fears of the hole expanding and damaging the rail line, services were delayed in order to complete emergency repairs and infill the void. Initial observations have led rail engineers to speculate that a collapsed drain or coastal erosion accelerated by Storm Eleanor are the cause of the collapse. However, the correlation with known mine entries and collapses along the railway line have prompted Terrafirma to research further to see if past coal extraction may in fact be the cause.

SinkholeAlert: Demonstrating Disaster with Data

Exploring the themes behind Sinkholes in the UK

At Terrafirma, understanding the ground is what we do best: Our CEO Tom Backhouse was recently asked to feature in Channel 5’s documentary Sinkholes to provide an expert insight into the roots behind their cause. Inevitably then, when high profile sinkholes such as those at Fontmell Close, in St Albans or in Wednesbury, causing up to six million pounds of damage and evacuating families from their homes, we ask ourselves “can sinkholes be predicted?”.

Over the last few months and years, the experts at Terrafirma have meticulously observed, understood and recorded each sinkhole as they form. Now, armed with this information, Terrafirma is proud to present a new dataset and report feature; ‘SinkholeAlert’, allowing our team to examine the common themes behind these hidden dangers. 

Could the Wednesbury 'Sinkhole' have been predicted?

The formation of a ‘sinkhole’ beneath a property in Wednesbury, West Midlands has received abundant coverage from the mainstream media during the last week. At Terrafirma, we have been looking into this event to try and understand more about its cause and wider context.

Protect Property with a Professional Opinion.

The age of solely relying on data in environmental risk assessment is over, with a visible shift in the way professionals perceive risks such as contaminated land and flood. Where historically data alone was enough to accept due diligence, now both a professional opinion and interpretative data modelling is a standard in assessing and managing these environmental hazards. 

However, despite the significant annual financial expenditure (between 4 and 15% of all Buildings Insurance Claims in the past 5 years were attributed to subsidence) and the increasing visibility of the ‘Sinkhole’ phenomena, this shift in due diligence process has not been replicated in assessing the risks the ground pose.