Basement Water Leakage Abatement, U.S. Embassy London

The successful contractor shall provide complete construction services, contract coordination, and supervision, including but not limited to the management and construction necessary to meet the requirements of the contract within the established timeframe. The US Embassy, London proposes to employ a specialist Contractor to repair the water ingress into the plant rooms and parking garage at the below grade basement floor of US Embassy, London. The work shall start in the Generators room, Pond Equipment room and Boilers room. If the repair work, that the Contractor has carried out in the aforementioned areas, is satisfactory, the work may be continued in the other areas of the basement. The work on the repair project generally includes the following: 1. Chemical grout injection at the following locations: The interface between the diaphragm wall and mat slab. The interface between the pond wall and basement floor. Cracks and construction joints in the mat slab and basement floor. Isolated cracks in the diaphragm wall and other locations with leaks. 2. Cutting and grinding to create water collection channels where conflicts or access constraints preclude grout injection. Forming collection chancels above slab is an option if the slab cutting is not possible.