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San Diego 8
Confusion Hill Realignment Project Nearly Complete By Erik Pisor CEG CORRESPONDENT
For more than a decade, a portion of Route 101 in Mendocino County, Calif., has experienced regular winter road delays due to landslides and slipouts. These often five-hour plus delays have affected travelers and the transportation of goods and services into the area. The landslides also have caused multiple-day road closures, which from 1997 to 2006 resulted in more than $33 million in maintenance and restoration expenses to Caltrans. This winter however, delays and closures along the portion of Route 101 known as Confusion Hill will be a thing of the past, as the $65 million Confusion Hill Roadway Realignment Project is nearly complete. The project involved relocating approximately 1.5 mi. (2.4 km) of Route 101 by constructing a 255-ft. (77 m) tall, three span, cast-in-place segmental bridge; and a 142-ft. (43 m) tall, three span, cast-in-place concrete box girder bridge above the Eel River, according to Evan Paine, project manager for Sacramento-based MCM construction. Construction of a short section of new highway, which involved an approximately 400,000 cu. yds. (305,800 cu m) rock cut and the installation of two steel soldier pile retaining walls, also was part of the Federal Highway Administration-funded project that began in June 2006. However it was the bridgework that set the project apart. “Each bridge has a unique design due to time and cost restraints placed on project development,” said Phil Frisbie, public information officer for Caltrans District 1. The south, segmental bridge has 30-degree slant legs that allowed the foundations to stay above the 100-year flood plain and reduced environmental permit requirements. “The segmental bridge is only the sixth of its kind built in
Pictured is the completed South Bridge.
California,” Paine said. Sloping piers, are a feature of the north, box girder bridge, which because of steep and rugged site access required an 80-ft. (24 m) high, 300-ft. (91 m) long work trestle to construct. The main cranes utilized by MCM for the bridgework included a Maintowoc 4000, a Maintowoc 3900, a Link-Belt
LS-518 and a Link-Belt LS-338, according to Paine, who added a pair of self-launching travelers were used during construction of the south, segmental bridge. All the crane equipment was owned by MCM, who was selected based on being the lowest qualified bidder. The three-span, south segmental bridge has a main span see CONFUSION page 6
California Leads Nation With More Than $2B in Federal Funds Gov. Arnold Schwarzenegger announced that more than $2 billion in Recovery Act funding has now been federally obligated to 620 highway transportation infrastructure projects statewide. Focused on pumping Recovery funding into the California economy quickly, effectively and responsibly, California has obligated more Recovery Act funding federally designated for highway transportation infrastructure than any other
state in the nation. “We are working around the clock with the federal government to ensure President Obama’s Recovery funding is pumped into California quickly, effectively and responsibly,” said Schwarzenegger. “California is the first state in the nation to obligate $2 billion of this funding, which will improve our state’s transportation infrastructure for generations to come while stimulating our econ-
omy, creating jobs and helping drive California down the road to economic recovery.” Under the Recovery Act, states were given 120 days to obligate half of their federal stimulus transportation funding to projects — which California completed more than two months ahead of federal deadline. California also was the first state in the nation to obligate $1 billion in stimulus
funding to improve its highways, local streets, public transit and airports. “From day one, our focus has been and continues to be ensuring that California gets the maximum benefit from federal stimulus funding,” said Caltrans Director Randy Iwasaki. “With the help of billions in stimulus dollars, we’re putting people to work and building better roads, bridges, and transit for Californians.”