Las Vegas, the glittering city of luck with its fascinating fountains, draws 90 percent of its water from Lake Mead. The largest reservoir in the United States is fed by the Colorado River. The areas around Las Vegas, however, are taking more from the lake than flows into it as snow melt and rain water from the Rocky Mountains. During the 14 years of drought, the water level has dropped by 35 metres. The two existing water intakes for the Las Vegas Valley are in danger of running dry, and Intake No.1 could be at risk next year. It is now only 24 feet (7 metres) below the lake level.
5200 Pump Unit for the Akkerman Tunnel Boring System
Arup's Billy Bishop Toronto City Airport Pedestrian Tunnel Wins Canadian Tunnelling Association Award
Arup, a multidisciplinary engineering and consulting firm with a reputation for delivering innovative and sustainable designs, has announced that the Billy Bishop Toronto City Airport Pedestrian Tunnel project has won the Tunnelling Association of Canada (TAC) 2014 Canadian Project Award. A ceremony was held at the Sheraton Wall Centre in Vancouver on Monday evening, October 27th.
Morgan Advanced Materials has made available FireMaster FireBarrier 135 sprayed refractory cement, offering superior fire protection and simple, cost-effective installation. FireMaster FireBarrier 135 is ideal for concrete tunnel lining fire protection, and the fire protection of ventilation shafts, escape tunnels and refuges as well as critical systems such as water mains and communication cables.
CRS Tunnelling is the Canadian division of Super Excavators, a well-established, Milwaukee-based heavy civil construction company with a focus on tunnelling, microtunnelling, foundation work, slip lining and open-cut construction.
The demand for new underground infrastructures for pedestrians and cyclists is increasing along with the rapidly growing traffic load in large and megacities. This makes it necessary to cross beneath a great number of busy junctions, expressways or railway routes at short distances and at a low depth. The high traffic burden at these intersections makes aboveground interventions extremely difficult or even impossible without a great deal of additional work and expense.
The need to replace aging underground infrastructure has led Hydro One Networks Inc. and Toronto Hydro to join forces to upgrade the existing 115 kV transmission lines in the midtown power corridor in Toronto. The project involves installing an additional 115 kV circuit between the Leaside Transformer Station and the Birch Ave. junction.