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Fit for duty
04 March, 2020
Establishing baseline cognitive response times that can be compared over time helps mitigate or even avoid accidents on the job. Christina Lindstrom, Obayashi, explains this entirely new approach to ensuring a safe and healthy working environment

Health, safety and wellness
04 March, 2020
Reducing on-the-job injuries is vital, but so is staying well. T&T highlights improvements in the industry

Ship shape
04 March, 2020
Construction has started on Seattle’s Ship Canal stormwater tunnel, Paola De Pascali reports

Spotlight Seattle
04 March, 2020
The fast-growing city is under pressure to provide congestion relief to crowded streets and affordable housing, Nicole Robinson reports. New tunnel projects are being designed to do both

New year resolutions
04 March, 2020
You’re supposed to floss your teeth, quit smoking, eat more vegetables, get 30 minutes of exercise each day, cut down on anything worth eating or drinking, and the list goes on. And whether or not you actually do that, or try to, the doctor or dentist is told one’s very best efforts are being applied, mostly.

Ontario Line awards technical advisor contract
03 March, 2020
Ontario – Infrastructure Ontario and Metrolinx have selected the HDR-led team to serve as technical advisor for the approximately CAD 10.9bn (USD 8.1bn) Ontario Line in Toronto, it was announced on March 2. This nearly 16km long, free-standing subway line will be a combination of tunnelled and elevated sections, with 15 proposed stations, running from Ontario Place/Exhibition Place through downtown Toronto to the Ontario Science Centre.

Shannon & Wilson announce change in Leadership
03 March, 2020
Seattle – Geotechnical and environmental consulting firm Shannon & Wilson announced February 20 a change in leadership in 2020. Gerard Buechel will be stepping down after 16 years as president. Taking the reins will be Greg Fischer who has served the past 15 of his 30-year tenure with Shannon & Wilson as chairman of the board.

Tunnel could replace Brooklyn-Queens Expressway
27 February, 2020
New York – The New York City Council and Arup released a report February 24 about the possibilities for repairing and replacing the Brooklyn-Queens Expressway, including a tunnel.

TBMs leaving site on the Sydney Metro project
25 February, 2020
Australia – The four 7m-diameter Herrenknecht double shields that excavated the tunnels for the City & Southwest phase of the Sydney Metro are being lifted out of construction sites and are leaving the city. Between them they have excavated 30km of twin metro tunnel and only the slurry TBM for the harbour crossing remains.

First Forrestfield TBM makes final breakthrough
25 February, 2020
Australia – The first TBM mining the Forrestfield-Airport Link in Perth has broken through. ‘Grace’ broke through into the Bayswater dive structure in February and will be followed by ‘Sandy’ in May, which is tunnelling the typical three-months behind the lead machine. The contractor is the Salini Impregilo-NRW JV.

HSE issues welding warning
25 February, 2020
Great Britain – The Health and Safety Executive (HSE) has issued a reminder that companies must protect their workers from the risks from welding fume. The HSE is undergoing a programme of inspections following a February 2019 safety alert. New evidence showed that exposure to mild steel welding fume can cause cancer.

Thames Tideway excavation halfway complete
21 February, 2020
Great Britain – London’s new ‘super sewer’ half excavated. The TBMs boring the Thames Tideway project are 12.5km through the 25km-long, 7m-diameter project. As well as the main tunnel, a 1km-long, 3m-diameter connection tunnel is also currently under construction in Wandsworth at the western end of the project.

ASA publishes position statements for underground shotcrete
20 February, 2020
Axel Nitschke, tunnel practice leader (NATM), for WSP USA , is chair of the ASA Underground Committee. He gives background on two new papers from the association

Underground Maze
20 February, 2020
Paola De Pascali visited the Bank Station Capacity Upgrade (BSCU) site, which is placed in the City of London within historical buildings and Roman archaeological remains

Encountering Pingoes
20 February, 2020
A slurry TBM encountered an unexpected drift filled hollow (DFH) on the Lee Tunnel drive. Three contributors told their part of the story: project geotechnical engineer Tim Newman gave a description of the project and some of the GI undertaken ahead of the drive, tunnel construction manager John Corcoran spoke about tunnel operations and consultant geologist Jackie Skipper about emergency response site team, forensic ground investigation to gauge extent of DFH, what is a DFH and tell-tale signs. Martyn Noak from Jacobs reports

Hunting the record
20 February, 2020
Romed Insam from Brenner Base Tunnel SE and Michael Rehbock-Sander, head of engineering at the Brenner Base Tunnel North JV, working for Amberg Engineering, report on the challenges and the current state of the future longest tunnel in the world

Queensbury renovation has popular support
20 February, 2020
The good people of West Yorkshire have rallied against the closure of the 1.4-mile (2.3km) Queensbury Tunnel, with 6,000 signing a petition in support. While this does not amount to a pardon for the abandoned 140-year-old structure, hopefully the Department for Transport (DfT) will take notice.

Long-Baseline Neutrino Facility releases construction update
19 February, 2020
South Dakota – Three of the underground construction components are near completion at the Sanford Underground Research Facility (Sanford Lab) for the far site of Fermi National Accelerator Laboratory’s (Fermilab) Long-Baseline Neutrino Facility (LBNF).

High Speed 2 given go-ahead, with more oversight
13 February, 2020
Great Britain – Britain’s new high-speed rail link between its southern capital and major northern cities has survived a review process and will go ahead. British Prime Minister Boris Johnson approved the project, hailing it as a ‘new spine of British transport’ but said the decision was difficult and controversial.

Stantec makes leadership appointments
12 February, 2020
Stantec has announced its leadership group for its Infrastructure business as of January. Susan Walter will be taking over as executive vice president, infrastructure for Stantec’s global operations. Susan’s appointment to the position comes as Stuart Lerner, who has helmed the business for two years, is promoted to chief operating officer, North America.