English: Usk Prison Originally opened in 1844 as a House of Correction. In 1870 after the addition of other buildings, it became the County Gaol for Monmouthshire. It remained in that role until 1922 when it closed, reopening in 1939 as a Closed Borstal and continued in that role until 1964 when it became a Detention Centre. In 1983 Usk became a Youth Custody Centre and from 1988 to 1990 a YOI. In may 1990 it became an Adult Cat C establishment for Vulnerable Prisoners and continues in that role today.