GI works at Lower Tinnahinch Weir And Rock Fish Pass

Ground Investigation (GI) works at Lower Tinnahinch Weir And Rock Fish Pass comprises the following:

• Cable percussion to maximum depth of 10m BGL
• Insitu SPT N testing in all boreholes.
• Insitu permeability testing in selected boreholes where ground conditions allow.
• Trial pits to 3m BGL or effective refusal.
• Geophysical Surveying
• Grab samples
• In-situ and laboratory geotechnical testing.
• Laboratory environmental testing.
• Standard re-instatement of works for all locations. The investigations are distributed throughout the Tinnahinch Weir And Fish Pass. Refer to the tender documents for more details.