News Archive

World’s longest tunnel gets green light

Austria and Italy have officially approved the launch of works on the 55km long Brenner Base Tunnel following the agreement of costing and financing for the now estimated US$11.4bn project. Works on the main tunnel can now begin, starting from Innsbruck in the north and from Fortezza in the south with construction of the central part of the tunnel between Ahrental and Trens beginning in 2016 for completion in 2025. Read more

Crossrail central London stations shortlist

Crossrail has announced the shortlists for the remaining central London stations – Bond Street, Tottenham Court Road, Liverpool Street and Whitechapel stations. The following organisations will be invited to tender: Read more

Indianapolis gears up to bid Deep Rock Tunnel Connector

The Indianapolis Department of Public Works is due to advertise its 7.5-mile (12.2km) Deep Rock Tunnel Connector (DRTC) project at the beginning of May. Designed by AECOM, the DRTC will be capable of conveying combined sewer overflows (CSOs) of up to 550 million gallons/day, to capture sewage from three of the city’s largest overflow locations. The 18ft (5.48m) i.d. tunnel will be bored at depths of 270ft (82m) through limestone and dolomite using a main beam TBM and lined with un-reinforced concrete. Read more

CRCC sets Chinese EPBM record

The 11th Bureau of the China Railway Construction Corp, (CRCC) has set a TBM advance rate project record of 720m in one month on the Zhengzhou Metro Line 1 using a 6.3m diameter Robbins EPBMs. The rates are not only a project record amongst nine other machines on the scheme, but also rank as some of the highest rates ever recorded for Chinese EPBMs in the 6 – 7m diameter range. Read more

HMM wins coveted Alaskan Way CM

Hatch Mott MacDonald (HMM) has won the hotly contested US$11 million five-year construction management services contract for the 2.7km (1.7-mile) long Alaskan Way Viaduct Bored Tunnel project, in Seattle, Washington, USA. Linea Laird, Director of Central & North Projects for owner Washington State Department of Transportation (WSDOT), told Tunnelling Journal that a very strong response had been received from the consultant community to provide CM services for the massive 58ft (17.6m) diameter EPBM bored tunnel and that HMM had provided the best technically qualified proposal. Read more

Powering to an early finish at Palomino

On Friday, April 8, Odebrecht Construcción y Ingeniería celebrated the breakthrough of its 4.6m (15ft) diameter Herrenknecht hard rock Double Shield drive for the Palomino Hydroelectric Project, in the Dominican Republic. Despite complex funding issues bringing a series of delays to the works, the Brazilian contractor completed the 12.43km (7.7-mile) long headrace drive in just 18 months; with a best production day of 53.5m (175.5ft), in early February this year, and a best month of 1091.6m (3,580ft), in March 2010. Read more

Tunnel woes force Leighton re-forecast

Leighton Holdings Limited has advised that a major review of its operations and asset base for 2010/2011 has shown the Group is now expecting to report a loss of $427M for the financial year versus its previous guidance for a profit of $480 million after tax. The revision is primarily due to losses on Brisbane’s Airport Link Tunnel, and the Victorian Desalination Project, and an impairment of Leighton’s investment in the Habtoor Leighton Group (HLG). Read more

Crossrail awards last tunnelling contracts

Crossrail today announced its intention to award the remaining 3km of twin bore tunnel contracts, with the US$310M C310 for the Thames Tunnel going to the Hochtief/Murphy JV, whilst Vinci scoops the US$53M Connaught Tunnel refurbishment contract. Crossrail has also announced its intention to award the US$82M, C350 for the Pudding Mill Lane Portal construction to Morgan Sindall, and the news that the manufacturers of the seven TBMs to be used will be announced later this month. Read more

Two more awards on Singapore’s DTL 3

Singapore’s Land Transport Authority (LTA) has awarded two more civil contracts, C930 and C932, with a total value of S$361.56M for the Downtown Line Stage 3 (DTL3) project. Read more

Blue Plains Tunnel awarded

In Washington DC, the DC Clean Rivers Project has awarded the first of its four major design-build tunnel contracts to Traylor/Skanska/Jay-Dee JV with designer Halcrow.  Technical and price proposals for the Blue Plains Tunnel were received from three shortlisted design-build teams – Kiewit/Clark, Traylor/Skanska/Jay-Dee and Kenny/Shea/Obayashi – in January, with high to low prices ranging from $330.5M to $358M. Evaluation and scoring of the technical (35%) and price (65%) proposals ultimately resulted in a combined highest score and lowest bid by Traylor/Skanska/Jay-Dee. The DC Water Board of Directors is due to officially approve the $330.5M contract on April 7, with Notice to Proceed expected in late April. EPC has been selected to carry out construction management on the project. Read more

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