Top Four Most Expensive Highway Constructions In The World

1. The Most Expensive Big Dig Highway In The World - Boston

The Big Dig is the most expensive highway in the world. The “Big Dig” in Boston, Mass is one of the most challenging and complex heavy construction.The Big Dig constructors is only a recent example of how the subsurface conditions and complex geology in the Boston area. Boston's Big Dig was an idea estimated to cost $2.8 billion in 1985 and substantially soared to $14.8 billion, making it the most expensive highway project ever undertaken in history.

2. The Most Expensive Big Dig Highway In The World - USA

Big Dig in USA is known to be the most expensive Highway in the world. This expensive highway project has been estimated to $ 2.8 billion in the year 1985 and in the year 2006 to 14.2 billion. Pan American Highway is the longest highway in the world. This highway stretches for around 25,000 kilometres and is known as the world’s “longest motorable road”

3. The Most Expensive Longest National Highway In The World - Australia

Australia’s Highway 1 connects Australia`s state capitals with total length around 14,500 km or 9,000 miles. The highway is recorded as the longest national highway in the world and it is longer than Trans-Siberian Highway (around 11,000 km) and the Trans-Canada Highway ( around 8,030 km.

4. The Most Expensive Interstate Highway In The World - United StateThis is the most expensive transport project on the planet. It cost 114 billion $ and it was finished in 1992. It was named after the president Dwight D Eisenhower (its official name is ‘The Dwight D. Eisenhower National System of Interstate and Defence Highways’).