Patrick Parsons have undertaken three phases of ground investigation on Mytholmroyd station where a significant car park development is proposed.
Mytholmroyd Station is at the top of a c. 9-15m high embankment above the River Calder flood plain. The car park was to be extended into densely vegetated adjacent land, including trackside and the steep embankment slope, where a retaining wall is proposed.
The works comprised contamination assessment and investigation of ground conditions through the slope to assess its stability and inform the retaining wall (and ultimately the car park) design.
Access was severely restricted onto site, with temporary road closures required to mobilise long reach excavator, slope crawling rotary drilling rigs and the construction of mid-slope anchored drilling platforms. Vegetation Clearance was also undertaken to improve access.
Significant Health and Safety input was required with provision of Construction Phase Plan (under CDM), as well as Work Package Plans and Task Briefing Sheets for drilling and vegetation clearance. Works were carried out under supervision of Network Rail Asset Protection Officers, then subsequently by a Controller of Site Safety (Conductor Rail Permit) as the vegetation clearance and investigation works all had the potential for any accidents or incidents to potentially impact the live track, which was not even fenced off in some locations.