The border was opened in stages over the next few months.

The line opened in several stages between 2002 and 2007.

It was opened in several stages between 1846 and 1873.

The road opened in stages, and was completed by late 2009.

It was opened in several stages between 1847 and 1855.

The line was opened in several stages between 1860 and 1879.

The line was opened in stages between 1854 and 1856.

It opened in stages from the summer to Christmas 1999.

It was opened in several stages between 1872 and 1877.

The new line is expected to open in stages by 2015.