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Argentina

Argentina, Buenos Aires - ar/24

Sewer

The Joint venture Impregilo (Italy)/Sa Healy (USA) has been awarded the contract for the construction of a new wastewater collector in Buenos Aires, within the framework of an environmental remediation program of the metropolitan region of the capital. The total value of the project – promoted by Agua y Saneamientos Argentinos SA, the leading operator in water treatment in Argentina, is about EUR360 million. The project includes the collection of wastewater from the Riachuelo plant via a 40 m-deep shaft to be carried to a diffuser on the bottom of the Rio de la Plata through an 11 km-long tunnel with 3.8 m diameter. Visit www.aysa.com.ar and www.impregilo.it. 33/13.

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Argentina, Cordoba - ar/23

Metro

The federal Transport Secretariat is considering a proposal from Metro Cí³rdoba, a consortium of Iecsa, Ghella and Alstom, to build a 15.8 km metro network with 17 stations in the city of Cí³rdoba with private finance. Comprising two routes (north-south and east-west) with tunnels 9 m in diameter excavated with TBMs and running at a depth of 9 m below the surface, the project has been costed at USD1.1 billion. An east-west route with 11 stations would run from Avenida Patria under the Suquí­a river to reach the city centre, continuing under Olmos and Colí³n avenues to reach Duarte Quirí³s. With six stations, the proposed north-south route would run under Maipíº and Chacabuco avenues to serve the university campus in the southwest of the city. The project has been endorsed by the city of Cí³rdoba. Visit www.iecsa.com.ar and www.ghella.com 17/08.

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Argentina, Buenos Aires - ar/22

Railway

Open call for bids, deadline 10th April, 2006 for project design, executive design and construction of a 7.09 km tunnel to place underground the Caballito-Liniers section and eliminate 31 level crossings between Liniers and Moreno. The project implies the construction of a 4-track tunnel for double-decker coaches. Refurbishment of the four existing stations in Caballito, Flores, Floresta and Villa Luro is also planned, rebuilding them below ground with a central platform between each pair of tracks to the same destination. The project is estimated to cost USD420 million, plus UDS175 million for the double-decker trains. The Sarmiento line is operated through a concession by Trenes de Buenos Aires (TBA) but the federal government will finance USD110 million and the winning company USD300 million. The award of the contract is scheduled for 1st September, 2006. Work will last three years. Visit www.boletinoficial.gov.ar/versionlibre/anexos/anexo-res82-09032006.pdf 11/06.The deadline to prequalify for the project design, executive design and construction with financing of a 7.09 km tunnel to place underground the Caballito-Liniers section and eliminate 31 level crossings between Liniers and Moreno on the Sarmiento line in Buenos Aires has been extended to 10th May, 2006. Click ar/22 for more info and visit www.transporte.gov.ar/licitaciones/sarmiento/prorroga_soterramiento.pdf 15/06.Three consortia have prequalified for placing underground the Sarmiento line. The three groups are: a consortium including Iecsa (Argentina), Odebrecht of Brazil, Comsa of Spain and Ghella of Italy; a group formed by Spain's Isolux Corsan and Esuco of Argentina; and Argentinian contractor Roggio. Bids will have to be submitted for 23rd August at the latest. The project is budgeted at USD400 million. Click ar/22. 23/06.The two prequalified consortia after assessment of the technical and financial offers for the first stage of the undergrounding of the Sarmiento line are as follows: Iecsa teaming up with Comsa, Odebrecht and Ghella on one side and Isolux Corsí¡n in partnership with Esuco on the other. This bidding process relates to engineering, executive design, construction and financing to place underground the Sarmiento railway line between Caballito and Moreno, including stage I Caballito-Liniers (Ciudadela), stage II Liniers (Ciudadela)-Castelar and stage III Castelar-Moreno. A TBM will be used. The project consists of a 7.1 km tunnel, approx. 11 m in diameter, running under the existing railway route. The tunnel will lie at an average depth of 22 metres to avoid obstacles like sewer mains, rain water and potable water pipes and other utilities or the relocation of public utilities. It will also minimise disruptions and reduce construction times. The tunnel will be bored in three subsequent stages: firstly the section between Caballito and Ciudadela stations, secondly from Ramos Mejí­a to Castelar and thirdly from Ituzaingí³ to Moreno. All the stations on the path will be constructed underground. The new line will allow trains every three minutes, thus increasing significantly passenger capacity and providing more comfortable double-decker carriages. 40/07.The first stage to bury the Sarmiento line between Caballito and Moreno has been commissioned to the Nuevo Sarmiento consortium, formed by the Argentine firm Iecsa, Brazil's Odebrecht, Comsa of Spain and Italy's Ghella, who submitted the low bid. The first section from Caballito to Ciudadela will take 36 months and cost ARS3,367 million. The Ministry of economy has now 60 days to prepare the contract and 10 more days to sign it. The first phase envisions the construction of 9,200 metres of tunnel, the ramps, six stations (Caballito, Flores, Floresta, Villa Luro, Liniers and Ciudadela) and a maintenance workshop. The tunnel will be 11 m in diameter and will be driven by a TBM. The new two-level underground stations will be 225 m long, 25 m wide and 22 m deep.Some 9.7 million passengers travel on the Sarmiento line per month and 370,000 per working day. The tunnel will increase ridership by 40%. The first phase forms part of a larger scheme to build 32.6 kilometres of tunnel under the existing tracks, between Caballito and Moreno, worth a total of ARS10,610 million. The second stage includes the construction of 9,400 metres of tunnel, from Ciudadela to Castelar, and the third phase 14,100 metres up to Moreno. Visit www.iecsa.com.ar, www.odebrecht.com, www.comsa.com and www.ghella.com 06/08.

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Argentina, Buenos Aires - ar/21

Flood Mitigation

The Buenos Aires government plans to build the Maldonado Creek rainfall flood mitigation project. The creek currently flows into a rectangular conduit under Avenue Juan B. Justo. The project will alleviate flooding in Villa Crespo and Palermo. It will mainly consist of two flood relief tunnels, each featuring a 6.9 m outer diameter. The longest tunnel, 10 km long, will run under the avenue up to La Plata river. It will be connected to the current conduit in Cuenca and Honorio Pueyrredon. The second relief tunnel, 5 km long, will run under Godoy Cruz from Niceto Vega. It is also planned to build 40 km of secondary ducts to channel rain waters to the new tunnels. Both tunnels will be built using two EPB or mixshield TBMs. The project would require a USD130 million investment, financed by the World Bank. Tenders would be invited by year end and a contract award is expected for September 2005. Construction will take four years. More details on the TBM design directly from Ing. Ricardo Rebagliati, Subunidad de Proteccií³n contra Emergencias (SUPCE), Avenida Cí³rdoba 1261 Piso 2° (1055) Capital Federal. Tel./Fax +54 1148168074 / 8410 / 8411. E-mail ppi@supceba.com.ar 43/04.Prequalification, deadline 13th October, 2005 for construction of two tunnels to relieve Maldonado Creek main sewer and associated works. Innder diameter of 6.9 m for both tunnels, lengths of approx. 4,600 m and 9,900 m between shafts. Tunnelling in ruban area by closed face EPB shields or mixshields, in cohesive on non-cohesive soils, at varriable depths of 13 to 23 m. Associated works includes circular shafts, 14 m in diameter and about 20 m deep, and 15 m-diameter 30 m-deep discharge and pumping structures, two of which will be connected to the tunnels. Muck volume of 735,000 cu m. Visit www.buenosaires.gov.ar/areas/planhidraulico/?menu_id=10153 or contact Gobierno de la Ciudad autí³noma de Buenos Aires, UECBA-SUPCE, Avenida Cordoba 1261 2° Piso contrafrente, 1055 Buenos Aires. Tel. +54 114816 8410 / 8411 / 8074, fax +54 114816 8074, e-mail ppi@supceba.com.ar and nlietti@buenosaires.gov.ar 40/05.Ghella scooped a ARS454.2 million contract to build two flood relief tunnels from the main storm drainpipe of the Maldonado creek basin, with important associated works, as well as reinforcement works of the storm water secondary system of collectors, to avoid significant inconveniences generated by floods that are produced by storms. The Maldonado creek crosses Buenos Aires from southwest to northwest. The relief scheme consists of two 6.9 m-diameter tunnels and associated structures, i.e. three diversion and connection structures, which will transport the water from the main outfall to the two new relief tunnels; a discharge and pumping structure to enable the discharge to La Plata river through an outlet canal; and two ventilation chambers (one for each tunnel). The short tunnel (Tunnel 1) is 4,579 metres long and the long tunnel (Tunnel 2) is 9,864 metres, for a total of 14,443 metres. Construction will last four years and will multiply by five the level of protection against floods, in line with the level of protection of other major cities around the world. Click here to view a map of the alignment. Visit www.ghella.com 07/08.

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Argentina, Aguas Negras - ar/20

Cross-border Road

The national highway directorates of Argentina and Chile have kicked off the tender process for a feasibility study of a traffic tunnel between the two countries. The tunnel will span centre-north Chile's Region IV and Argentina's San Juan province. Six Argentine firms and six Chilean firms were invited to submit bids under a closed tender process. Offers are due next month and a winner will be selected by June. Names were not released. The tunnel would be built at the Aguas Negras border pass, 4,000 m-high in the Andes mountains, while the alternative would entail fully paving the existing road. Results should be ready by year-end. The tunnel's estimated price tag is US$30 million but the final cost will depend on a number of variables such as geotechnical details and whether the tunnel will be three, four or five km-long. If built, the tunnel will be financed on the two countries' US$400 million border crossings and integration corridors programme. The Inter-American Development Bank approved a US$200 million loan for the programme in December 2000, while the Japan Bank for International Cooperation is providing US$120 million and local counterpart funds the remainder. 18/03.According to a preliminary technical study just submitted, the 14 km tunnel between Argentina and Chile will cost over USD250 million. The idea is to finance the project via a concession. The tunnel would guarantee year-round passage between both countries. The current Aguas Negras border pass, 4,000 m-high in the Andes, is subject to closures during the winter. The tunnel is considered as a key link for pushing forward the bi-oceanic corridor between Chile's Region IV port Coquimbo and Brazilian port Porto Alegre. The project would also include an access tunnel which would be used for maintenance and act as an escape route. 23/04.China and Argentina signed on 29th June an agreement in principle for building a 13.9 km tunnel across the Andes on a visit of president Nestor Kirchner to Beijing. The tunnel, which will cross five Argentinian provinces, will be built some 800 m below the present crossing at Aguas Negras Pass in San Juan. The tunnel, which is part of the central bi-oceanic corridor between Porto Alegre in Brazil and Coquimbo in Chile, is designed to shorten considerably the distance between the Atlantic and Pacific oceans and boost Argentinian soya and fruit exports to China, permitting and all-weather link by avoiding passage through the Cristo Redendor cross-border tunnel in Mendoza between Argentina and Chile, which is sometimes closed during winter thereby crippling hundreds of trucks on both sides of the Andes. The tunnel's cost estimate reaches USD250 million and it will be constructed by China National Overseas Engineering Corp. and the Fourth Engineering Bureau at an estimated time frame of 68 months once the final agreement is signed. Click ar/20 & cl/24. 29/04.

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Tenders for 14 km-long tunnel expected H2/2010 for award by bi-national committee in 2011 and completion in 4-5 years. Budget estimate EUR390 million. Key funding agreed with national development bank BNDES of Brazil. For project history visit tunnelbuilder archive ar/20. 37/10.

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The governments of Argentina and Chile received 23 expressions of interest for the bi-tube 13.9 km-long Agua Negra trans-Andean road tunnel project. The companies are from Argentina, Brazil, Chile, China, Italy, Korea and other countries. The tunnel will link Argentina's San Juan province with Chile's Coquimbo region (region IV). The bilateral body Ebitan will produce a list of pre-qualifiers over the coming weeks for a tender process set to begin next year. Click here for more info on the project and ar/20 and cl/24 for tunnelbuilder archive. Visit

http://www.ebitan.org/ebitan/descargas/resultadoActoApertura.pdf. 45/13.

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Notice of qualification system, deadline 08.02.2017, for the design and construction of the 13.9km international Agua Negra Pass tunnel. The bidding will take place at the beginning of 2018 and construction will begin between the end of 2018 and the beginning of 2019, with an estimated duration of 9 years. Contact EBITAN, attn Enrique Alvarez Jaque, Santiago de Chile, tel 56-2-24493002, email enrique.alvarez@mop.gov.cl. Visit http://www.ebitan.org/descargas/pliegoPrecalificacion.pdf. 02/17.


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Argentina, Mendoza - ar/19

Railway

Tecnicagua expects bidding to start in September or October 2003 for a 25-year concession to rehabilitate and operate the 232 km Transandina freight railroad linking Mendoza in Argentina with Los Andes in central Chile. The project is estimated to require about US$220 million. Tecnicagua is currently conducting technical studies for the project. Seven kilometres of artificial tunnels will be built in avalanche prone zones. 37/02.

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Argentina, Las Leí±as Pass - ar/18

Cross-border road

Scetauroute is undertaking the feasibility study, draft design and financial assessment for a road link in central Andes on behalf of the Chilean Ministry of Public Works and the Argentinian Transport Secretariat for a 13.2 km international tunnel, and a 2 km access tunnel on the Chilean side. Two-way single tube, 8.5 m-wide. Studies and supervision estimated at US$111 million, and tunnelling at US$408 million (1995 value). Construction to last eight years. Opening in 2014. Visit www.scetauroute.com 47/01.

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Argentina, Buenos Aires - ar/17

Metro Line E

1.25 km double-track tunnel to new workshop being built by Metroví­­as between Plaza de los Virreyes station on Line E and crossroads between Lacarra street and the Perito Moreno highway. 46/01.The Secretariate for Transportation has extended to 26th April, 2006 the deadline to enable the contractors who prequalified in the tender for the construction of the Line E extension of the Buenos Aires metro to update their accounting and legal documentation, to then move forward to the stage of submission of financial bids. Tenders were invited before the 2001 recession so that the process must be adjusted to the new economic situation of the country. On 21st March, 2006 the Secretariate for Transportation requested from the contractors and consortia technically prequalified an update of the documents they submitted in May 2001.The prequalified contractors and consortia are a JV of Techint, Benito Roggio, Sade and Skanska and a JV of Gualtieri, José Cartellone, Dycasa and Dragados.The civil works required for the extension of Line E will connect the existing Bolivar station with Retiro, running under Rivadavia and Leandro N. Alem avenues, adding 2,300 metres to the 9,986 m-long line in service today. The section will serve three new stations (Correo Central, Catalinas and Retiro). Visit www.transporte.gov.ar 15/06.Civil works for the extension of Line E of the Buenos Aires metro have been awarded to Benito Roggio & Hijos, for ARP346.7 million. The contract was signed on 16th February, 2007. The extended line will link up the existing Bolivar station with a new terminus station in Retiro. The new section will run beneath Rivadavia and Leandro N. Alem avenues, adding 2.3 km to the existing 10 kilometres of line. A depot and three stations (Correo Central, Catalinas, and Retiro) are also part of the contract. The tunnel will cross five main obstacles: Line B, Line C, a 2.8 m-diameter wastewater sewer, a rainwater sewer under San Martin street and, in Retiro, the Onabe building. Construction, scheduled to commence within 90 days, will last three years. Visit www.roggio.com.ar 09/07.

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Argentina, Buenos Aires - ar/16

Sewer

Aguas Argentinas has engaged Brown & Root to provide technical, cost and programme services for design and construction of an 8 km-long, 3.3 m-diameter sewer tunnel on the eastern border of the city and an optional 7 km-long sea outfall tunnel into the 40 km wide River Plate between Argentina and Uruguay. EPB construction is envisaged in soft marine deposits at 30 m depth below city and harbour areas. Construction due to commence later this year. Visit www.halliburton.com July 2000.

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Argentina, Buenos Aires - ar/15

Water Supply

  15 km-long, 3.5 m-diameter Saavedra-Moron tunnel reaching completion by Wayss & Freytag/Sollazo Hnos for Aguas Argentinas using Herrenknecht EPB. Safege Montgomery Watson are client's engineer. Tunnelling conditions post-evaluation study carried out by team chaired by Mike Kobler of Underground Construction Managers and including Alastair Biggart of Hatch Mott MacDonald and Gary Brierley of Brierley Associates. Visit www.brierleyassociates.com January 2000.   Completion of $65 million Saavedra-Moron reported. The tunnel comprises four drives of 3.56 km, 4.2 km, 3.7 km, and 3.8 km at depth 35 m from five shafts. Ground conditions were variable, ranging from quicksands under 2.5 bar pressure, through green sandy clays to hard consolidated silts with calcareous nodules. Soil conditioning using bentonite or foam, or both. The two Herrenknecht 4.3 m-diameter EPBs averaged 20 x 1.2 m-wide gasketed rings/day with a best performance of 35 rings. Visit www.herrenknecht.com March 2000.

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