On-Site Weekly Updates

Below you will find week-by-week updates issued from the ESS construction site.

Civil Construction 2016Civil Construction 2015Aerial Views

Civil Construction 2017

Week 2 — 9 January 2017
Installation of the ESS Chip Irradiation (ECHIR) beamline cast-in pipe was performed in the Target area alongside the casting of the Monolith puck foundation. Reinforcement of the Monolith diagonal walls and the entire Active Cells area is approaching completion, with casting soon to follow. Instrument Halls 1 and 2 (D01 and D03), which flank each side of the Target Station (D02), are now under construction with the installation of their foundation piling. Two-thirds of the 8,000-square-metre Beamline Gallery (E02) base slab is now set. MEP work across seven different trades continues throughout the Gallery Building (G02), including the installation of a staircase and drop-ceilings. Construction of the Cryo-Compressor Building (G04) is complete and has been handed over to MEP works. Topfill and retaining wall construction along the south side of the Accelerator tunnel (G01) continues in spite of the low temperatures.
Site overview looking southeast, including Accelerator tunnel topfill, instrument halls piling, the site offices complex, and a new parking lot. PHOTO: ESS
Inside the Target Station works, with reinforcement, formwork and casting ongoing for the Monolith (right) and Active Cells area (background). PHOTO: ESS
Seven MEP trades are working simultaneously to prepare the Gallery Building for ESS technical installations to begin soon. PHOTO: ESS
Week 1 — 2 January 2017
Two milestones were achieved on the construction site this week, with partial access granted to ESS for the Gallery Building (G02) and the Cryo-Compressor Building (G04). This opens the way for technical installations in these areas to begin, including the RF test place in the Klystron gallery and the installation of Helium tanks, compressors and other gas equipment in the cryo halls and outdoor areas. Additionally, access to Stub 25 in the Accelerator tunnel (G01) has been granted for installation of a full-scale mockup of the stub’s RF systems to take place over the next two months. For more information on upcoming technical installations in 2017 read our interview with Technical Director Roland Garoby.
Overview of the Target Station Monolith puck construction in December, future site of the target wheel. PHOTO: ESS
December crane-top view looking northeast over the building construction, including the first Ha-Ha Wall, in progress in the background near the base of the wind turbine. PHOTO: ESS
Concrete reinforcement in the Active Cells area in December. Concrete works begin this month. PHOTO: ESS

Civil Construction 2016

Weeks 50-52 — 12 December 2016

Some highlights of the Conventional Facilities works planned for 2017: 
  • Superstructure for the E-buildings is scheduled to start this spring, once the bottom slab is completed. 
  • The Central Utility Building (H01) will be equipped with floors and facades. 
  • Topfill of the Accelerator tunnel (G01) will be completed and the external link element and roof membrane for the sedum roof on the slope and Gallery Building (G02) will commence late spring. 
  • Excavation for two new utility buildings, the Sprinkler Building (H10) and the Waste Building (H09), is scheduled for March and August, respectively. 
  • Full access to the Accelerator tunnel (G01), Cryo-Compressor Building (G04) and the Front End Building in May for technical installations.
  • Plenty of activity in the Target area.
The Monolith Puck rising inside the Target Station. PHOTOS: ESS
Beamline gallery foundations during week 50. PHOTO: ESS
Week 49 — 05 December 2016
The installation of the Tuning Beam Dump shielding blocks continued, with scheduled completion in week 50. Swedish public television reported on the installation. High-pressure pipe installations between the Cryo-Compressor Building (G04) and the Accelerator tunnel (G01) have begun. The final section of the Target Station (D02) Monolith base slab was cast last Tuesday, bringing this massive five-part concrete pour to an end. The first casting of the Monolith Puck, the lower puck, which is 1.5 metres thick, began on Friday. Reinforcement of the Puck’s walls continues, with the first casting planned for this week. The Beam Line Gallery (E02) is on schedule with two more base slabs cast last week, and the E04 lab building was also equipped with a base slab. 
Recent aerial photography of some of the major work areas is shown below. These photos were taken on 22 November 2016. Click on each one to view in greater detail. An aerial view of the entire site on this day is available here.
Visible are the dogleg area of the Accelerator tunnel emerging from the ground, the Target Monolith area where base slab casting is taking place, and the Active Cells area with red ground covering. PHOTO: Perry Nordeng/ESS
The 8,000-square-metre beamline gallery fanning out from the Target Station, and the foundation works for the 150-metre-distant instrument hall and labs. PHOTO: Perry Nordeng/ESS
The Gallery Building (far left), the Cryo-Compressor Building (center front), and the large Central Utility Building (center rear). The small building to the far right is a completed power station. PHOTO: Perry Nordeng/ESS
Week 48 — 28 November 2016
Progress was made on the installation of ESS-Bilbao’s specially engineered Tuning Beam Dump shielding blocks. The installation is being done by contractor BMS, supervised by the ESS Target Division, and should finish before the holiday break. The Gallery Building (G02) was a hive of MEP works covering 90 percent of the building complex. Facade works moved toward completion on the Cryo-Compressor Building (G04), as did construction of the “Dog Shed” in the outdoor gas storage area. Foundation works continue in the Beam Line Gallery (E02), with six of 22 base slabs now cast for this 8,000-square-metre floor. And in the Target area (D02) reinforcement of the fifth and final section of the massive base slab for the Target Monolith continued. It was two years ago this week that the first concrete was cast on the site, a base slab for the Accelerator tunnel. The tunnel was completed in April 2016, 455 castings later.
The view from the Accelerator tunnel dogleg, where the installation of the beam dump shielding blocks is being performed with a crane. In the background is the orange-capped rebar outline of the Monolith "puck" and beyond that the Active Cells area. PHOTO: ESS
Video of tuning beam dump shielding blocks installation in progress last week. VIDEO: ESS
A portion of the labyrinth of installation tunnels and utility spaces taking shape beneath the Target Station. PHOTO: ESS
Site workers move into position one morning last week. PHOTO: ESS WEBCAM
Week 47 — 21 November 2016
The fourth of the five castings for the 1.6-metre-thick Monolith base slab was completed, requiring two cranes placing 280 cubic metres of concrete. In the adjacent Active Cells area the left-in-place formwork has been completed, setting the stage for further concrete works in the Target Station (D02). Foundation work for the Beam Line Gallery (E02) and associated lab buildings has progressed with more concrete cast in that area. The overhead cranes in the Gallery Building (G02) were tested and MEP installations continue throughout the seven halls of the large structure. Structural earthworks continue across the length of the Accelerator tunnel and the facade is being installed on the Cryo-Compressor Building (G04). Finally, commissioning of the overhead crane in the dogleg area was completed so that installation of ESS-Bilbao’s Beam Dump shielding blocks was able to begin today.
Pouring of the fourth section of the Target Monolith base slab. PHOTO: ESS
Workers placing the shielding blocks for the Tuning Beam Dump. PHOTO: ESS
Tuning Beam Dump shielding block being hoisted into position near the end of the Accelerator tunnel. PHOTO: ESS
Week 46 — 14 November 2016
The installation galleries for the Target Station and Instrument Halls (D-buildings) reached 90 percent structural completion. These galleries are a series of tunnels that in total exceed the length of the Accelerator tunnel. Nearby, all of the walls have been cast for the D4 lab buildings. The massive topfill and reinforcement of soil, clay and gravel along the southern flank of the Accelerator tunnel (G01) continues at full force, rapidly giving shape to the facility. The extensive steel reinforcement of the Monolith base slab continues as does the installation of left-in-place structural formwork in the adjacent Active Cells area (D02). The many various interior works for the Gallery Building (G02) continue, with all floors, facades and roofing completed. Two more base slabs have been cast in the large Beamline Gallery (E02) extending 150 metres west from the Target.
The walls of the D04 labs adjacent to the Target Station in progress. PHOTO: ESS
Cranetop view of the western flank of the Target Station, including the 150-metre-length instrument hall. PHOTO: ESS
An animated sequence for the planned construction of the Target Building and Experimental Halls, from August 2016 through October 2019. SOURCE: Kajsa Pannwitz Sjöberg/Skanska
Week 45 — 7 November 2016
On Friday morning 200 specially engineered concrete shielding blocks were received at the site from in-kind partner ESS-Bilbao. This represents the project’s first major in-kind delivery to the site. The interlocking blocks are part of the Tuning Beam Dump, one of ESS-Bilbao’s six in-kind contributions to the Target sub-project. This transfer of ownership also served as the first test of ESS logistics and in-kind receiving processes and procedures, and involved coordination between ESS-Bilbao, Target, Conventional Facilities, Procurement, Legal and In-Kind Management.
Work inside and outside the Accelerator tunnel (G01) and Gallery Building (G02) made significant progress. The soil topfill and construction of the reinforced slope that will define the exterior of the tunnel are in full swing, with completion expected before Christmas. All soil for this work is excavated directly from the site, including 120,000 cubic metres of clay. An additional 17,000 cubic metres of gravel is also required. Inside the tunnel an array of mechanical, electrical and plumbing (MEP) works are in progress, including installation of compressed air lines, sprinklers, cabling and other systems. The Gallery Building saw its final floor slab cast and the completion of roofing works. A wide mix of MEP works also continues inside. The first bottom slab casting for the Instrument Beam Line Gallery (E02) was cast this week, with extensive steel reinforcement and form works progressing in the Target Monolith and Active Cells areas (D02). The reinforcement for the walls of the cylindrical Monolith can be clearly seen now on site webcam #3.
One of the eight trucks delivering 200 specially engineered concrete shielding blocks from ESS-Bilbao. Part of their in-kind contribution to the Target sub-project. PHOTO: ESS
Crane view of the topfill and reinforced slope works taking place above the Accelerator tunnel. Left of the tunnel are the long Gallery Building and the Cryo-Compressor Building. PHOTO: ESS
Instrument Beamline Gallery taking shape (left) and the first signs of life in the Accelerator tunnel. PHOTOS: ESS
Week 44 — 31 October 2016
Commissioning of the overhead crane in the Dog Leg area of the Accelerator tunnel (G01) began. The crane will be used in the installation of the eight trucks of Beam Dump shielding blocks scheduled to arrive on site this week from ESS Bilbao. Topfill over and around the Accelerator tunnel was moving at full speed in order to complete as much of this work as possible before the ground freezes. Finishing work is ongoing in the Gallery Building’s (G02) Cryogenics Office, which will be one of the first occupied work spaces in the facility. The Cryo-Compressor Building (G04) was prepared to give ESS partial access to the gas storage area this week. Foundation works continued both in the Target area (D02, D04, D05) and the Beam Line Gallery (E02), roof works are nearing completion on the Central Utility Building (H01), and a new permanent road has received its first layer of asphalt, running between the Gallery Building and the Cryo-Compressor Building.
The crane rails (blue) protruding from the Dog Leg section of the Accelerator tunnel. These will be used for installation of the Beam Dump later this month. PHOTO: ESS
The exterior windows of the Cryogenics Office in the Gallery Building. Interior finishing is proceeding here for one of the first usable facility workspaces. PHOTO: ESS
The Central Utility Building work is moving forward, with roofing works expected to complete this month. PHOTO: ESS
Week 43 — 24 October 2016
The second of five castings for the 1.6-meter-thick Target Monolith base slab was completed. Backfill on the Target Station installation tunnels began and walls are being cast for the D04 Lab Building. All pilings for the Beam Line Gallery (E02) have been set and preparations are underway for casting the base slab for this large part of the facility. An overhead crane was installed at the Dog Leg area of the Accelerator tunnel to be used for Beam Dump installation, and backfill along the length of the tunnel continues. Mechanical, electrical and plumbing works continue in the Gallery Building (G02) as well as the Cryo-Compressor Building (G04), where facade works also are moving ahead. Finally, 20 kV of power has been turned on in the high-voltage substation buildings H05 and H06, flowing underground from the Kraftringen power station.
Webcam image from October 31 shows Target Station work, Accelerator tunnel exit (with temporary green waterproofing), and the earthen slope taking shape over the Accelerator tunnel. PHOTO: ESS
Week 42 — 17 October 2016
The interior of the 489-meter-long Gallery Building (G02) was buzzing with activity. As the building approaches structural completion, ongoing work includes installations for lighting, electrical grounding, and plumbing, and installations of doors, stairs, and cranes, along with floor finishing, and other finishing works including painting and dust binding. Outside the building, topfill is progressing at a rapid pace and has almost reached the roof level, with preparations begun to expand the slope, the facility’s characteristic landscape feature that will run the length of the Accelerator. Work continued on the Accelerator tunnel (G01), with notable progress toward completion of the HEBT Loading Bay through which Accelerator components will be moved into the tunnel. In the Target area, work continues on the Monolith base slab and the last of the four tower cranes has been installed. These will remain in place for the remainder of the construction of the Target Station.
Tower cranes installed for the construction of the Target Station. PHOTO: ESS
Two views of the ongoing topfill and prep work to establish the sloped landscaping descending from the roof of the Gallery Building, over the Accelerator tunnel, to ground level. PHOTO: ESS
Week 41 — 10 October 2016
The first of five concrete castings for the massive 1.6-meter-deep Monolith base slab took place, consolidating 60 tons of steel reinforcement. Casting of the base slab for the D04 lab building also progressed in the Target area. Concrete piling continues across the 8,000-square-meter instrument hall area (E Buildings)  west of the Target. Several instrument beamline paths are already discernible. In the Accelerator Tunnel dog leg an overhead crane is under construction to be used for installation of the Beam Dump shielding blocks by ESS Partner ESS Bilbao. Also in the tunnel, the HEBT loading bay is undergoing roofing and interior work.
Piling for the instrument halls and labs west of the Target area. Slabs should be ready and building works underway in winter 2017. PHOTO: ESS
Where the Accelerator Tunnel meets the Target Station. Beam Dump installation will take place near the green waterproofing, and the Monolith base slab reinforcement can be seen at the far left. PHOTO: ESS
Week 40 — 3 October 2016
Preparations for technical installations to begin next month are underway. A crane is being installed in the Dog Leg area to prepare for the November installation of ESS Bilbao’s Beam Dump shielding solution. Overhead cranes are also being installed in the Gallery Building (G02) Cold Box and Loading Hall in advance of installations in those areas. Preparations to cast the Monolith base slab are nearly complete with the first casting expected this week. The hanging of the facade of the Cryo-Compressor Building (G04) progressed, with work to establish piping and duct connections between the Cryo-Transfer Line and the Accelerator and Target areas advancing as well. And backfill along the Accelerator Tunnel (G01) has moved to a more advanced stage with the reinforcement of the slope between the tunnel and the Gallery Building retaining wall. 
Reinforcement of the Target Monolith base slab to be poured this month. PHOTO: ESS
Newly completed Gallery Building floor in section 7. PHOTO: ESS
Facade work on the Cryo-Compressor Building. PHOTO: ESS
Week 39 — 26 September 2016
A permanent crane assembly was installed in each of the two halls of the Cryo-Compressor Building (G04). These cranes, mounted on rails near the ceiling, will be used for installations and future maintenance, and can operate throughout the full area of the building. The anticipated first casting of the massive Monolith base slab in the Target area has been delayed due to design changes, but the extensive reinforcement work continues. Topfill around the Front End Building (FEB) has moved forward, obscuring even more of the completed facility beneath mounds of dirt. Preparations to cast the building’s retaining wall have come nearly to completion.
New crane installed in a hall of the Cryo-Compresson Building. PHOTO: ESS
Concrete reinforcement for the 1600 mm-thick base slab of the Target Monolith. PHOTO: ESS
Backfill at the Front End Building. PHOTO: ESS

Go to the 2016 weekly updates page ►


Site Plans





Site Plan: Overview, Building Numbers
rev. G: 26-Aug-2015
Construction Layout


1    2    3    4


Site Aerial Views

Please click the image for a high-resolution photo.







22 December 2016






22 November 2016






13 October 2016






16 September 2016






17 August 2016






30 June 2016






24 May 2016






22 April 2016






16 March 2016






17 February 2016






18 January 2016






15 December 2015






20 November 2015






27 October 2015






18 September 2015






18 August 2015






2 July 2015






5 June 2015






5 May 2015






10 April 2015






9 March 2015

Click for high-resolution photo.






5 February 2015






3 December 2014






28 October 2014






18 September 2014






21 August 2014






22 July 2014






March 2014





Early 2013 satellite image


AERIAL PHOTOS: Perry Nordeng