11 arches are now in place up on the Monolith/Utility high bay. Steel erection will soon continue for the Target Entrance Building, one of the lab buildings, the Accelerator to Target and the Active Cell. Almost all concrete has now been poured for the Target Building and surrounding area; what now remain is the Dog Leg cover, the retaining wall on the north side, a few shielding castings and the hatches. Other work ongoing in the Target area is demobilisation of form and scaffolding, concrete repair work, and grinding of joints and concrete upstands. The cover and retaining walls for the Dog Leg is scheduled for completion before the end of the year, and in early 2020, work will start on backfilling in this area.
The epoxy floor amendment work was completed in one of the lab buildings last week, and most fittings are in place. A range of system acceptance tests are ongoing in the lab buildings, all leading up to the Sectional Handover Inspection, scheduled for November. NSS, the ESS division handling installations in the Experimental Hall, has started some activity in the two large halls. Next week a large temporary tent, measuring 15x15 metres (225 m2), will be erected in the east corner of the Experimental Hall 3. Installation of interface plates on top of some of the beam line piles in the Beam Line Gallery, and workshops and lay-down areas in preparation for works to come, have commenced. Construction of instrument caves are set to begin during Q1 of 2020.
Last week we saw the very first base slab being cast for the Waste Building. This is the first out of four castings for the ground floor of this building, and once the second slab is completed, form and reinforcement for the walls will begin.
An extended scope for the Klystron Gallery has been agreed and includes cable pulling, conduits for power cables in stubs, piping and electrical works, and additional steel structures. These works are scheduled for completion by summer 2020.
A meteorological mast, measuring 46 metres, is tallest structure in the entire ESS project (beating the stack by 1 metre!). It will be equipped with measuring equipment on three different levels, providing accurate data about weather conditions - wind direction, wind speed, solar rays, precipitation, humidity, particles in the air, etc. - meaning it will serve as a weather station and also provide required data for the ESS radiation monitoring group. The red light at the top of the mast - a requirement for high objects such as this - ensures it is clearly visible.