A planned $890,000 realignment of Cleveland’s Inner Belt Bridge over the Cuyahoga River has been postponed because engineers still need to confirm some calculations, according to Jocelyn Clemings, an Ohio Dept. of Transportation spokeswoman. The 4-in. realignment, which officials hope will occur within the next few weeks, will entail raising the west end of the 70-million-ton bridge off its piers, setting it down on lubricated plates and jacking it to the west to free up an expansion joint. The bridge is similar in design to the Interstate 35 bridge that collapsed in 2007 in Minneapolis. Photo: AP / Wideworld
New York Yankees fans will have a facility that doesn’t require $1,200 tickets starting on May 23 when the New York Metropolitan Transportation Authority’s Metro-North Railroad opens the new $91- million Yankees-East 153rd Street Station. Photo: CCA Civil / Halmar International, LLC Design-built station links to new Yankee Stadium. Photo: CCA Civil / Halmar International, LLC Mostly precast rail station will greet waves of Yankee fans in the Bronx. The largest and newest of Metro-North’s 120 outlying stations, the 55,000-sq-ft facility features twin 850-ft-long platforms to accommodate 10-car trains on four tracks, a 10,000-sq-ft overhead mezzanine and a 425-ft-long, 25-ft-wide
A team led by Spain’s ACS Infrastructure Development has inked a development deal with the North Carolina Turnpike Authority to design, finance and build a new seven-mile-long toll bridge to North Carolina’s Outer Banks. The two-lane, $650-million Mid-Currituck Bridge would be North Carolina’s longest bridge. The project would connect U.S. Route 158 on the mainland with the remote northern sector of the Outer Banks. The authority signed a predevelopment agreement on April 30 with Currituck Development Group, led by ACS Infrastructure Development and lead contractor Dragados USA, with Traylor Bros., Evansville, Ind., and Weeks Marine, Cranford, N.J., also on the
Sempra Generation believes in solar power’s bright future: The dust had barely settled at the company’s five-month-old 10-MW photovoltaic power generation plant near Boulder City, Nev., when it announced an expansion to quintuple capacity. The company claims it will create North America’s largest thin-film photovoltaic installation. Photo: First Solar Solar plant is next to Sempra’s 480-MW gas-turbine plant. The unit of San Diego-based Sempra Energy “won’t start construction until we have a [power sales] contract in hand,” says a Sempra spokesman. “We hope to start construction later this year.” Potential buyers could come from neighboring states, all of which have
Federal stimulus funds will help get 7,400 MW of wind-energy and solar-energy projects ready for construction on public lands by the end of 2010, U.S. Interior Secretary Ken Salazar told the American Wind Energy Association in Chicago on May 5. About $41 million is earmarked for the effort. The Obama administration also plans renewable-energy coordination offices in Arizona, California, Nevada and Wyoming to complete reviews “on the most ready-to-go projects,” he said. The projects will require new transmission lines to carry electricity to markets, including 1,500 kV of capacity in California, nearly 900 kV in Idaho and 1,000 kV in
A California county judge on May 6 ruled that two landowners cannot block access to their property to prevent engineers from studying possible routes for a 600-ft-wide and possibly 50-mile-long canal to help move water from northern sources to Southern California users. About half the owners of 125 parcels have denied access. The ruling in Contra Costa County that said two of them cannot stop the state from collecting biological and geological data on their farms—a ruling sought by state Attorney General Jerry Brown—is the first in the matter. Access requests for another 388 parcels are planned. +Image Map: Nancy
Responding to nearly a year’s worth of media speculation that the May 12, 2008, earthquake in China’s Sichuan province might have been triggered by the weight of a recently impounded reservoir, an international team of dam experts has returned from China reporting that such an hypothesis “is very unlikely.” Photo: International Commission On Large Dams Zipingpu Dam, reservoir not quake source. The magnitude 7.9 Wenchuan earthquake devastated vast areas of the province located in the foothills east of the Tibetan Plateau and killed an estimated 70,000 people. The epicenter was 17 kilometers from concrete-faced rockfill Zipingpu Dam. The dam is
Architects are calling the third version of the popular green-building rating system, Leadership in Energy and Environmental Design, a significant improvement over earlier releases. LEED 2009, which covers new construction, schools, core and shell, commercial interiors and existing buildings, “is a step forward,” says Greg Mella, a principal of SmithGroup, Washington, D.C., and a member of the American Institute of Architects committee on the environment. Under LEED 2009, rolled out late last month by the U.S. Green Building Council, credits are standardized on a 100-point scale. Credits also have been reweighted. Mella deems that important because it recognizes the connection
The third draft of the nation’s first standard for high-performance buildings, currently out for public comment through June 15, has stricter energy conservation provisions and reflects input from a broader cross-section of experts, according to its developer. National laboratories currently are using energy modeling to determine how much more savings could be generated using the latest version of the proposed standard compared to previous versions. “I would anticipate [savings would go] up at least another 5%,” says Kent Peterson, chair of the committee writing American Society of Heating, Refrigerating and Air-Conditioning Engineers Standard 189.1, and principal of P2S Engineering Inc.,
Structural engineers from Keast & Hood are a bit baffled in the belfry of historic Independence Hall in Philadelphia. As part of a planned $4.3-million renovation, triggered by leaks in the landmark’s tower, the local firm discovered that several lines of iron rods, which run vertically down the center of the tower’s 2.75-in.-thick wooden siding, have significantly deteriorated. But the team doesn’t know why the rods are there in the first place, so they don’t know if they need to be repaired or replaced. Photo: National Park Service Philadelphia tower built in 1828. Photo: National Park Service Purpose of rods