Retender: The Bing Community Group Wastewater Scheme Geotechnical Investigation Contract

Tender description

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 o Guidelines for Managing Openings in Public Roads, April 2017 DTTAS o Requirements for the Reinstatement of Openings in National Roads, CC-PAV-04007, May 2019, TII Publications o Temporary Traffic Management Design Guidance, August 2019 DTTAS o Temporary Traffic Management Operations Guidance, August 2019 DTTAS.