# CP1494-17 A361 and A39 North Devon Link Road Geotechnical Investigation

> A sourced UK public sector contract award published by Devon County Council.

## Key facts

- Buyer: [Devon County Council](/buyers/devon-county-council/contract-awards)
- Supplier: Geotechnics Ltd
- Award value: £125,000
- Tender value: £250,000
- Award date: 8 January 2018
- Published: 26 February 2018
- Contract start: 5 February 2018
- Contract end: 21 December 2018
- Stage: awarded
- Procurement category: services
- Notice ID: b2ef4fcb-1799-41ef-b9e7-f64cb0a03e70-201119
- OCID: ocds-b5fd17-5a9a3804-37dd-4615-84ef-d42558ccabea

## Description

This Contract involves the Geotechnical Investigation into the A361 / A39 North Devon Link Road from the Borner's Bridge Junction at South Molton to the Buckleigh Road Junction near Bideford\. The ground investigation will comprise the following works: • The excavation of mechanically dug trial pits to a maximum depth of 4m or refusal\. • Windowless sample borehole drilled by a dynamic sampling rig to depths as given in the Procurement Documents or refusal on rockhead\. This is to include in-situ Standard Penetration Testing \(SPT\) and undisturbed sampling\. Hand-dug starter pits shall be excavated at all exploratory borehole locations\. • Combine dynamic sample / rotary open hole / rotary cored boreholes to depths as given in the Procurement Documents \. This is to include in-situ Standard Penetration Testing \(SPT\) and undisturbed sampling\. Hand-dug starter pits shall be excavated at all exploratory borehole locations\. • Excavation of hand-dug trial pits in sides of existing cuttings and removal of vegetation to expose underlying rock mass to facilitate kinematic analysis\. • Excavation of hand dug pits at base of cutting where inaccessible to mechanical excavation/boring methods\. • Installation of groundwater monitoring standpipes in boreholes to a depth specified by the supervising engineer\. Monitoring standpipes shall be 19mm diameter or greater\. • In-situ determination of California bearing Ratio \(CBR\) - to be undertaken using Dynamic Cone Penetration \(DCP\) equipment\. The number and location of DCP tests required to provide sufficient coverage will be determined on site by the Investigation Supervisor\. • Groundwater monitoring is to be conducted following the completion of site works at intervals determined by the Investigation Supervisor\. All installations shall be monitored to establish the elevation of groundwater\. • Geotechnical Laboratory testing on selected samples\. • Environmental/Chemical Laboratory testing on selected samples\. • Specific borehole requirements and Borehole location plans are detailed within the Procurement Documents\. • Provide Devon County Council with a Ground Investigation Report and Interpretation Report, plus design support\. The procurement documents are available for unrestricted and full direct access, free of charge, at: http://www\.supplyingthesouthwest\.org\.uk Tenders or requests to participate must be submitted electronically via: http://www\.supplyingthesouthwest\.org\.uk Additional information: The procurement documents are available for unrestricted and full direct access, free of charge, at: http://www\.supplyingthesouthwest\.org\.uk Tenders or requests to participate must be submitted electronically via: http://www\.supplyingthesouthwest\.org\.uk

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## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/b2ef4fcb-1799-41ef-b9e7-f64cb0a03e70-201119)