Biggest Engineering Projects:Big Dig

Boston's Big Dig, one of the most complicated engineering projects in the world and the most expensive public works project in the United States, finally opened in 2003, five years behind schedule and 30 years in the making. With an original price tag of around $4 billion (figure adjusted for inflation), the Big Dig ended up costing more than $14 billion. Workers constructed the Big Dig while traffic roared overhead on Boston's main highway, Interstate 93. Giant boring machines pushed prefabricated tunnel sections below frozen earth and beneath existing underground train lines. Rearranging centuries-old gas, water, electric, phone and cable lines further complicated building a new tunnel with as many as four highway lanes in each direction. The project also included a tunnel to Logan Airport as well as a cable-stayed bridge to replace the double-decker truss bridge over the Charles River.


Admirers hail it as an architectural wonder. Ultimately, the project demolished the city's main traffic artery that for years split city down the middle, and it created a new landscape that will one day be teeming with parks and green space.

wow! this was good news and dreaming same project launched in Nepal as well. So, people can get employed.

Nepal would be changed if such mega projects were launched here,but lets hope for good anb may such projects also be launched here.