BBV Sublot 4 - HSST1020 - Saltley Deep Drainage

A Subcontractor is required to undertake deep drainage within the Saltley Section of Sublot 4. The drainage is approximately 400m in length at 900mm diameter and ranges from 2.5m deep to 7.2m deep, with ground water sitting at approximately 2.5-3.0m deep. The assumption is that some of this pipework would be undertaken using trenchless techniques whilst some of the drainage might be installed traditionally (excavation and ground support). It is also considered that some of the manholes may be sunk rather than excav...