33/WAT/2023 - Retender: The Bing Community Group Wastewater Scheme Geotechnical Investigation Contract

Descriptions

This Contract provides for an advance ground investigation works to be carried out in connection with the construction of a proposed sewerage scheme in Kilrane, County Wexford from Bing to Kilrane. The Works shall include the following:•2 No. rotary coreholes to 6m (the location of coreholes required is to be reviewed following the trial pits and cable percussion boreholes)•2 No. cable percussion boreholes taken to 4 to 6m bgl or refusal on rock;•11 No. trial pits excavated to 3.0m or refusal on rock;•3 No. slit trenches (In road half road width excavation and reinstatement. In concrete footpath, full bay reinstatement)•2 No. standpipe piezometers.•Sampling from boreholes and trial pits;•Ground water level readings from piezometers (including returns to site);•In-situ testing (SPT’s) and laboratory testing;•In-situ permeability testing in boreholes where permeable strata are encountered.•Factual reporting;•Surveying of investigation points.•All works in accordance with oGuidelines for Managing Openings in Public Roads, April 2017 DTTASoRequirements for the Reinstatement of Openings in National Roads, CC-PAV-04007, May 2019, TII PublicationsoTemporary Traffic Management Design Guidance, August 2019 DTTASoTemporary Traffic Management Operations Guidance, August 2019 DTTAS.