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United States

United States, California - us/13

San Ramon Sanitary Conveyance

5,000 ft tunnel through soft sedimentary rocks at Dougherty Valley to carry 1.5 m-diameter pipeline and twin 0.3 m-diameter bypass lines. Shaft at one end and portal at the other. Under design by URS Greiner Woodward Clyde for Central Costa Sanitary District, Martinez, CA. April 1999.



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United States, California - us/12

Riverside Bad Lands Water Supply

Shank/Balfour Beatty to commence 12.7 km tunnel in June, 1999 using own-design 4.85 m TBM. Alignment mainly below water table at average depth of 60 m in alluvium and fractured metamorphic rock. Two intermediate shafts required for ventilation and grout transport. Probehole drilling, grouting and dewatering expected to stem water inflow and improve ground conditions. Part of Inland Feeder project. Completion scheduled September, 2002. March 1999.  See Inland Feeder us/23 for further updates. Sept 1999.



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United States, California - us/11

San Bernardino TBM

Shank/Balfour Beatty driving 9,286 m-long Arrowhead East aqueduct as part of Inland Feeder project which will require a total of 29 km of tunnels. 5.38 m shielded TBM designed by contractor launched March, 1998 and is working in granite and gneiss erecting 1.2 m-deep rings of four precast segments. Average advance on single-shift working is 18 rings/day with 28 rings maximum. 2 km completed to date. Steel-encased 12 ft internal diameter concrete pipe will be installed later and backgrouted in place. March 1999.  See Inland Feeder us/23 for further updates. Sept 1999.



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Uruguay

Uruguay, Montevideo - uy/11

Metro

Proposal for $900 million metro system of four separate lines to be built over four years. Concession to build and operate sought from municipal administration by private sector consortium. Three of the proposed lines are mainly underground. August 1998.  Officials have travelled to Bilbao to visit the metro in the Basque city. The project includes three underground lines and a surface light rail line. US$60 million first stage includes construction of the Red Line from the harbour to Ejido, where it would connect with the Blue Line. The 15 km line would serve Parque Rodí³, Punta Carretas, and Pocitos. Second stage is extending the Red Line to Estadio Centenario and Hospital de Clí­nicas. Third stage is a further extension to Punta Rieles and the beginning of the Yellow Line from Tres Cruces to Hipí³lito Irigoyen. Then the line will run parallel to Avenida Italia. French company Bceom, RATP and Alstom have already been approached in the past. Total investment of US$900 million. 20/02.



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Venezuela

Venezuela, Aragua and Miranda States - ve/19

Railway

Venezuela's state railway autonomous institute IAFE and the Italian embassy signed in January a letter of intent for the construction of the 70 km-long La Encrucijada-Charallave railway section, the last link to connect Caracas with Puerto Cabello. The path is in phase of optimisation and for the moment 18 tunnels stretching for a total of approx. 25 km are planned. The letter of intent sets the basis for awarding the contract to a consortium of builders which is expected to be formed by Ghella, Astaldi and Impregilo, who are currently building the Puerto Cabello-La Encrucijada section. Click here. 08/08.



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Venezuela, Los Llanos Region - ve/18

Railway

Astaldi, in joint venture with Impregilo and Ghella, is to build two new railway lines in Venezuela valuing a total of USD2.2 billion. The two new lines are San Juan de los Morros-Dos Caminos-Calabozo-San Fernando de Apure (252 km) and Chaguaramas-Las Mercedes-Cabruta (201 km). The works are part of intergovernmental agreements between Italy and Venezuela. The joint venture, in which each member holds equal 33.33% stakes, will carry out the works for the two railway sections over the course of 76 months. Start-up is planned for the second quarter of 2006, immediately after the contracts are signed. The project, which is aimed at fostering the development of Venezuela's central and southern area, involves building 453 km of new railway lines, 15 km of which in tunnel and with 12 km of bridges and viaducts. The project also includes designing and installing superstructure, 13 railway stations, three logistic centres, and a maintenance workshop. In addition to the value of the works to build the lines, there will also be USD1 billion in options for designing, supplying and assembling railway systems (signals, control, telecommunications, electrification and rolling stock). Visit www.astaldi.com, www.impregilo.it, www.ghellagroup.com and www.infraestructura.gov.ve 16/06.The joint venture between Astaldi, Ghella and Impregilo has signed its two contracts worth a total of USD2.2 billion with Venezuela's autonomous state railways (IAFE). The signing of the contracts follows intergovernmental agreements reached in April between Italy and Venezuela. The contracts concern the construction of the new San Juan de los Morros-San Fernando de Apure (252 km) and Chaguaramas-Cabruta (201 km) railway lines. These 453 kilometres of new lines involve 15 km of tunnels and 12 km of bridges and viaducts. Visit www.astaldi.com, www.impregilo.it, www.ghellagroup.com and www.infraestructura.gov.ve 25/06.GEI, a consortium formed by Astaldi, Ghella and Impregilo will be responsible for the construction of the 251 km San Juan de los Morros-San Fernando de Apure rail line, whereof 41 km in the mountain and 210 km in plain. The line totals a cost of USD1.6 billion. The contract has been signed and the site is being prepared. It is a design/build contract. At this stage, the project is in the design phase so that many of the technical aspects will have to be defined in the future, once the project is finalised. From the operational point of view, the planning and organisation of the project is underway and soon the sites will be prepared and mobilised.This line has been divided in lots, the construction of which will be undertaken by the contractors who teamed to form the consortium GEI. According to the preliminary project, ten single bored tunnels will be constructed for a total of 16 km. The cross section is 90 sq m. There are no other underground structures (stations, shafts, etc.). Geology consists of metamorphic rock (micaschists).Ghella will build the 6.3 km San Juan tunnel (from chainage 2+300 to chainage 8+600), which is part of subsection D1-G which goes from chainage 0+000 to 11+611, to be also fully built by Ghella. The other tunnels on the line are part of the subsections awarded to Impregilo and Astaldi (see pdf here of how the tunnels are divided and pdf here of the division into lots). Visit www.ghellagroup.com, www.astaldi.com and www.impregilo.itThe planned tunnelling method is to use hydraulic breakers where possible (FIAT Kobelco excavators and Krupp and Indeco hammers) and drilling and blasting with Atlas Copco jumbo drill rigs, Cat and FIAT Kobelco loaders, and Astra trucks. There will be six working faces. Visit www.fiatkobelco.com, www.indeco-breakers.com, www.atlascopco.com, www.cat.com and www.astraspa.comFor support, Swellex bolts, three CIFA shotcrete pumps and three Scamac shotcrete pumps will be used. The shotcrete will be reinforced with Maccaferri fibres. Visit www.swellex.com, www.cifa.com, www.scamac.com and www.maccaferri.comFor mucking-out, 12 Cat 966 loaders, FIAT Kobelco loaders and 24 Astra trucks will be used in addition to Dieci telescopic elevators. Visit www.dieci.com 48/06.



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Venezuela, Caracas - ve/17

Metro Line 3

  Construction of the El Valle-La Rinconada section on Line 3 will commence first quarter of 2002. Four TBMs to be used, two of which coming from Line 4 once the twin tunnels between Capuchinos and Plaza Venezuela are completed. Visit www.metrodecaracas.com.ve 52/01. Odebrecht signed a contract to extend southwards Line 3 from El Valle to La Rinconada serving four stations in Los Jardines, Coche, Mercado and La Rinconada where the line will intersect with the Valles del Tuy railway. Completion scheduled for 2006. Visit www.metrodecaracas.com.ve and www.odebrecht.com.br 38/02.



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Venezuela, Los Teques - ve/16

Urban Railway

Seven tunnels totalling 2.5 km and three cut-and-cover stretches making 833 m required on a 9.5 km line between El Tambor and Las Adjuntas in Los Teques, capital of Miranda state, 30 km west of Caracas. BOT contract prepared by Parsons Brinckerhoff. Total investment around US$300 million. Four bids submitted: Spanish-Venezuelan JV Necso-Capev (US$184 million); Brazilian consortium Odebrecht-Vinccler (US$208 million); Impregilo with Astaldi (US$218 million); and Dragados-Dycvensa (US$320 million). Preliminary work expected to end in October. Contract to be signed within two weeks for work to commence in November, 2001. Time frame of 34 months. Visit www.pbworld.com 42/01.Brazilian-Venezuelan jv Oderbrecht-Vinccler chosen by Metro de Los Teques to build the line Los Teques-Las Adjuntas for US$208 million, financed by Corporacií³n Andina de Fomento (CAF). Visit www.caf.com 45/01.



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Venezuela, Yacumbu-Quibor - ve/15

Water Transfer

Bids for excavation of remaining 6 km and rehabilitation of existing 20 km as follows: Dell'Acqua CA, $90.8m; Concreto, $92.2m; Torno/Obresca/Conintur JV, $105.3m; Impregilo/Ghella/Astaldi JV, $131.4m; Jose Cartellone CC, $172.5m. No bids from Odebrecht, Spie, and ICA. More from clairmurdock@attglobal.net 40/01.



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Venezuela, Caracas - ve/14

Railway

55 km-long double-track line from Caracas south to Cua will have 26 tunnels, longest of which is Tazon at 7 km. Cross-section is arched with a width of 5.8 m and height of 6.8 m. Contractor is an Italian-Venezuelan consortium comprising Impregilo, Astaldi, Ghella, and Otaola Ingeniera. Concrete spraying using a dry mix is being undertaken around the 52 portals and along most of the embankment slopes by Trevi Cimentaciones using six Aliva AL 262.1 machines. Around 20 to 30 sq m/day of sprayed concrete is being laid at pumping distances of up to 150 m and at pressures of 5 to 7 bar. Completion scheduled 2003. Visit www.aliva.com January 2000.



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