KiwiRail's boss is celebrating the opening of the Napier to Wairoa rail line today

It's been closed for seven years but a 6.2 million dollar boost from the Provincial Growth Fund will see freight being moved on it once again.

CEO Greg Miller says his team has put in a huge effort over the last year-and-a-half.

He says there's 500 metres of new track and 150 kilometres of work that's been done to get the corridor re-opened.