Image courtesy Brazil's National Agency of Terrestrial Transport A proposed high-speed rail line received no bids. A $21.3-billion high-speed-rail project in Brazil has been delayed for a third time after no offers were presented at auction this month. Government officials say they will now modify the proposal in hopes of attracting bidders in a new auction later this year.The Trem de Alta Velocidade Rio-São Paulo, or TAV, will provide a direct link between two of the country’s largest metropolitan areas. The 510- kilometer line would extend from Rio de Janeiro to São Paulo and terminate at the city of Campinas.
Related Links: The Ten Most Noteworthy Rail Projects: Overview and Related Stories After decades of delays, Brazil’s ambitious railroad project to revitalize the infrastructure of its booming northeast region is on track. The 1,728-kilometer Transnordestina rail line, linking city of Eliseu Martins in the region’s interior to the ports of Pecém and Suape, is slated to begin operations late next year.The $3.21 billion route is being built by Brazilian steelmaker Companhia Siderúrgica Nacional, which holds a 30-year concession that gives it a 75% stake in the line. CSN has financed through regional development agency Fundo de Investimentos do Nordeste and
The Panama Canal Authority awarded the contract to design a bridge on the Atlantic side of the Panama Canal near the Gatun Locks to a Chinese-U.S. joint venture. The China Communications Construction Co. and the Louis Berger Group offered a $4.66-million proposal, the lowest bid offered. The structure will be 75 meters above sea level and 5 km long, including the approaches. The other firms proffering bids included TYPSA Principia, URS Holdings, Puente de Colón JV, ARUP and T.Y. Lin International.The bridge is required to maintain a road passage across the isthmus with the construction of the new larger locks
Construction on Chile's largest hydroelectric initiative, the 2,750-MW HidroAysén project, is awaiting final approval by the country's environmental agency, who is expected to respond by next month. HidroAysén—a joint venture between Chilean power utilities Empresa Nacional de Electricidad SA and Colbun SA—submitted its environmental impact assessment on April 15. A decision by the Chilean government on the environmental license for the project is expected in May. HidroAysén involves construction of five powerplants with an installed capacity of 2,750 MW; the project is located on the Baker and Pascua rivers in the Aysén region of Chile. Transporting the power from Patagonia
In a move aimed at spurring U.S. exports of construction equipment and services to Brazil, the U.S. Export-Import Bank is providing a $1-billion line of credit for infrastructure projects in that country.
Article toolbar An effort to create wetlands out of dry chaparral in the Arizona desert has begun two new phases of work to support emergent marshes completed last year. The three-phase, $230-million Tres Rios Ecosystem Restoration and Flood Control Project is designed to improve a seven-mile-long section of the Salt and Gila rivers in southwestern Phoenix. The U.S. Army Corps of Engineers project is being built in coordination with the City of Phoenix. The wetlands are sustained using reclaimed water from the city’s 91st Avenue Wastewater Treatment Plant, near the convergence of the Salt, Agua Fria and Gila rivers. Last
One of the world’s largest run-of-the-river hydroelectric projects under construction is about to begin, installing unique bulb turbines that eventually will contribute 3,150 MW to Brazil’s energy grid. The $9-billion San Antonio hydroelectric project will require 44 massive bulb turbines seven meters in diameter, considered the largest ever built. Each turbine has 7-m-dia rotors and is capable of producing 71.6 MW of power. The turbine parts are being manufactured by France’s Alstom and the Austrian-German Voith Hydro in São Paulo, then shipped to the jobsite by boat to be re-assembled. The project on the Madiera River in the Brazilian Amazon
Since its inception in 2006, the most visible aspect of the Panama Canal’s $5.2-billion Third Lane Expansion project has been the excavation of the 6.7-kilometer-long Pacific Access Channel. With the completion of a $42.3-million, 1.8-km-long cofferdam this spring, that excavation is continuing as planned. The backfilled cellular cofferdam will hold back Miraflores Lake, the man-made body of water between the Miraflores locks and Pedro Miguel locks. Once the cofferdam is finished, excavation of 26 million cubic meters of material in the access-channel route can proceed as well as the construction of a permanent, $70-million, clay-core, basalt-rock-filled dam. The Pacific Access
Tucson, Ariz., secured federal funding for an ambitious project to build an electrically powered streetcar with the approval of a $63-million grant through the Federal Transit Administration. Photo courtesy City of Tucson Tucson�s modern streetcar project got a boost with the approval of a $63-million federal grant. Officials with the city�s transportation department finalized the paperwork for the Transportation Investment Generating Economic Recovery (TIGER) funds on Dec. 28. The move protects the project�s funding from congressional stimulus cuts, they say. The city now must find a way to close the $26-million funding gap for the project. Tucson also is awaiting