Keltbray Remediation were contracted to undertake bulk excavation management and off-site removal of soils to facilitate a basement excavation adjacent to the River Thames on behalf of joint venture developers Sainsburys and Barratt Homes.
The site was historically a coal-fired powerstation and the ground was not only heavily obstructed with relic tunnels and foundations but also contaminated with localised, hydrocarbons, asbestos and some heavy metals.
Due to the clients sustainability aspirations and logistical constraints on site, the bulk off-site removal of soils was undertaken by barge. Whilst this resulted in significant CO2 savings, a number of agencies were required to permit the activity. The Port of London Authority had to approve passage plans. The Environment Agency permitted ‘River Works’ and also issued a Dredging License to prepare the berth.
In total 20,000m3 of Made Ground and Natural Soils were disposed of off-site. All soils were sent off site for recovery (rather than disposal). Made Ground was sent to a recycling yard for processing, and Natural Soils were used in flood defence / land reclamation projects.
The works included provision of a high level pile mat (re-used at the lower level) and attendance to piling contractor and groundworker.
The works were completed on a lump-sum all risk basis.
- Client : UKD
- Main Contractor : UKD
- Quantity Surveyor : UKD
- Structural Engineer : N/A
- Location : Fulham Wharf
- Value : £700k
- Programme : 25 Weeks