Better defined geological and hazard models for Bellahouston Park, Glasgow : extension, Autumn 2003

Glasgow City Council (GCC) would like the key, south-central area of Bellahouston Park to be used for public events and wish to further constrain hazard areas related to old mineworkings. Previous studies and a borehole drilling programme have improved the geological and hazard model related to the workings of the Knightswood Gas and Pollock Stone coals (Rogers and Sowerbutts, 2000; Monaghan, Browne & Culshaw 2003). However a problematic area remained around a 1960’s borehole record ‘Pollock Borehole 13’ that contained a 1.1m void at 22.2m depth (–1.7m OD). The void was interpreted as being at the level of the Banton Rider Coal and the geology of the borehole did not fit well with surrounding boreholes (Monaghan, Browne & Culshaw 2003). The area where this void would be projected to crop out (hazard class D2) was in the centre of the part of the park with least hazard (no recorded mineworkings). Therefore, GCC wished to further resolve the area of hazard class D2 to adequately understand the hazards to public safety in this prime area for future activities. GCC commissioned the British Geological Survey (BGS) to undertake stratigraphical logging of three additional boreholes and to update the geological and hazard models for southern Bellahouston Park accordingly. Please refer to Monaghan, Browne & Culshaw (2003) along with this report.