With NSW prisons bursting at the seams, the state government will "rapid-build" a 400-inmate high-security jail at the Wellington Correctional Centre, with the facility to open later this year.

The rapid nature of construction will shave off about two years of work that more traditional prison builds entail, according to Minister for Corrections David Elliott on Monday. The state’s prison population hit a record high of nearly 13,000 inmates as of December – up 16 per cent over the…