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It can take years to build a road becauseof the enormous amount of work that is involved. It usuallytakes at least two or three years, and sometimes 10 or more.Before construction begins, years of homework must be done. Theenvironmental, social and economic impact of a road must bestudied.
Moreover, how much does it cost to build a highway?
Construct a new 2-lane undivided road —about $2 million to $3 million per mile in rural areas, about $3million to $5 million in urban areas. Construct a new 4-lanehighway — $4 million to $6 million per mile in ruraland suburban areas, $8 million to $10 million per mile in urbanareas.
Also Know, how much does it cost to build 1 km of highway?
These costs vary continually, and are based on avariety of factors. However, in 2009, it costs approximately$3 million to twin 1 kilometre of highway. Buildingnew highway costs approximately $3.5 million for a new2-lane 100-Series highway plus bridges, and approximately $6million for a new 4-lane highway.
Gas taxes and other fees paid by drivers nowcover less than half of road construction and maintenance costsnationally – down from more than 70 percent in the 1960s– with the balance coming chiefly from income, sales andproperty taxes and other levies on general taxpayers.