With about three-quarters of the U.K. high-speed rail’s 2.1-mile-long Colne Valley Viaduct complete, concrete deck segment placing crossed the country’s longest canal—the 137-mile Grand Union, about 20 miles from central London.
A workhorse with showhorse trappings as well, the $289-million Sixth Street Viaduct in Los Angeles features a series of technical innovations that sets a new threshold for seismic safety.
Providing a 75-year design life for the structurally deficient critical link between the city of Chelsea, Mass., its northern suburbs and Boston, the rehabilitation of the Chelsea Viaduct involved night work with heavy equipment and posed many risks.
This exceedingly complex and challenging project provided a 75-year design life for the structurally deficient critical link between the city of Chelsea, Mass., its northern suburbs and Boston.
Removal of upstate city's legacy highway structure passed a key milestone with shortlisted teams submitting proposals on Sept. 16 for the estimated $232-million first contract.
A 525-ft-long sliding girder, originally built for a Hong Kong project, will place around 1,000 concrete elements of a 2.1-mile viaduct for a new high-speed railroad.
The 6th Street Viaduct replacement project in Los Angeles has concluded the hanger installation of the first span and the removal of the falsework underneath, says COWI, an engineering consulting group.
Nearly 14 months after the Morandi viaduct collapsed in Genoa, Italy, killing 43 people, crews placed the first section of a 1,067-meter-long, 19-span steel and concrete replacement structure.
