Ten-mile hikes, wasp nests and forest fires marked an almost unfeasible feasibility study for a potential world-record road tunnel. Engineering geologists with Kleinfelder Inc., San Diego, are now working on a report, due by fall, for the Orange County Transportation Authority and Riverside County Transportation Commission. It will assess the possibility of building a pair of 50-ft-dia tunnels almost 12 miles long under the Cleveland National Forest in Southern California. Photo: Klienfelder Rugged test sites required a full-time helicopter. Engineers say tunnel-boring technology is not quite there yet, but might be by the time the agencies find funding and complete

The Texas Dept. of Transportation announced on Jan. 6 that it pulled the plug on the estimated $200-billion Trans-Texas Corridor, a vision introduced by TxDOT and Texas Gov. Rick Perry (R) in 2002. TxDOT Executive Director Amadeo Saenz Jr. made the announcement during the fourth annual Texas Transportation Forum in Austin. Projects already started under the heading of the Trans-Texas-Corridor will continue as a series of individual projects. Portions of two TTC projects are under development: Interstate 69 from Texarkana/Shreveport to the Mexico border and the I-35 corridor from north of Dallas/Fort Worth to Mexico. Perry cited financing as a

The Texas Department of Transportation today announced that it has effectively pulled the plug on its ambitious and widely publicized Trans-Texas Corridor, a comprehensive transportation plan introduced by TxDOT and Texas Gov. Rick Perry (R) in 2002. What was once envisioned as 4,000 miles of existing and new highways, railways and utility rights-of-way now will be attempted in smaller segments. Photo: TxDOT The vision that was: A rendering of the project formerly known as the Trans-Texas Corridor. Photo: TxDOT Amadeo Saenz, Jr., executive director of the Texas Department of Transportation. Major contracting consortiums had lined up to build the first

As the highlight of a $1.8-million, four-year federally funded research program, academic and industry researchers have begun testing multiple types of bridge-cable sensors in a chamber generating real-world-based corrosive conditions at Columbia University in New York City. The six-month test, launched on Dec. 23, has the world’s only cable mockup tested under 1.2-million lb of tension, say Columbia officials. Photo: Parsons Betti (left) and Khazem handle prefabricated parallel wire strands built for the mock suspension cable that will be subjected to real-life corrosion factors. The 20-ft-long mock suspension-bridge cable has a diameter of 20 in. and is made of nearly

Following a dramatic accident—the second in two months on the $803-million Interstate 10 Twin Spans bridges project—lead contractor Boh Bros. Construction Co. is reviewing safety procedures and employee training and actively seeking out “any additional steps we can implement to improve safety,” says Robert Boh, company president. Photo: La. DOT New Orleans Twin Spans project suffered a second accident in two months on Dec. 23. The Dec. 23 accident occurred when a 20-year-veteran crane operator, working a mobile hydraulic crane, apparently made a lift “beyond the safe working radius of the crane, causing the machine to tip over against the

President-elect Barack Obama's choice to lead the Dept. of Transportation, 14-year Republican congressman Ray LaHood (Ill.), took construction industry officials by surprise. LaHood's name didn't appear on rumor-mill lists of possible candidates to lead the Dept. of Transportation. Obama formally announced LaHood as his pick to be DOT Secretary on Dec. 19. Ray LaHood He hasn't been a leading legislator on transportation matters, though he served on the Transportation and Infrastructure Committee for his first six years in the House. Nevertheless, Rep. James Oberstar (D-Minn.), the Transportation committee's current chairman, says he believes LaHood will be "an excellent—superb infact—secretary of

Federal and congressional transportation proponents said on Dec. 15 they seek expressions of interest from firms to finance, design, build and operate high-speed passenger rail projects in 11 federally designated U.S. corridors. The solicitation is part of the Passenger Rail Investment and Improvement Act of 2008, signed into law on Oct. 16. Respondents have until September 2009 to submit proposals. A planned Northeast Corridor between New York City and Washington, set to cost up to $30 billion, would be first, with officials saying all routes could operate as early as 2012.

As a self-imposed 2009 deadline nears regarding whether to rebuild or raze the 55-year-old Alaskan Way Viaduct in Seattle, a consensus seemss far off. In early December, a task force whittled down a list of eight design options to two: a six-lane boulevard or a reconfigured elevated highway. The former option, a six-lane waterfront boulevard resembling San Francisco’s Embarcadero, would cost $2.2 billion. With related Interstate 5 work, mass transit and other projects, that amount increases to $3.3 billion and would take 5.5 years to build. The other option, twin bridges, would cost $2.3 billion. After traffic mitigation and related

After seven years, a public vote and countless discussions, the Washington State Dept. of Transportation, City of Seattle and King County narrowed the options for replacing the Alaskan Way Viaduct to two: a six-lane boulevard or a reconfigured elevated highway. Photo: WSDOT At-grade boulevard would mimic Embarcadero Photo: WSDOT Elevated highway would have twin spans State and local officials are racing against the clock to meet a self-imposed 2009 deadline for selecting a plan to replace the 55-year-old highway, which was damaged in the 2001 Nisqually earthquake. Washington Gov. Christine Gregoire (D) says the current structure is “a literal threat

Utah and Florida lead the American Association of State Highway and Transportation Officials's list—in terms of dollar value—of projects that are ready to start if funded in a federal economic stimulus plan, expected to be proposed in coming weeks. Related Links: 'Ready to Go' May Be The Stimulus Ticket Together the two states estimate they have $17.8 billion in road and bridge projects for which contracts could be awarded within 180 days of receiving stimulus aid. That amount represents 28% of the $64.3 billion in projects for all 50 states and the District of Columbia, according to AASHTO's tally, released