By the 1980s, the eight pavilions present on the viaduct were in such a poor condition that some of their roofs had fallen in and the installation of internal props was required to halt their further collapse. As a consequence of its heritage status, all envisioned alterations to the viaduct need to be reviewed and agreed upon by English Heritage.
By the 1980s, the eight pavilions on the viaduct had reached a critical state of disrepair, with some roofs having collapsed and requiring stabilization measures. Given its protected status as a heritage site, any proposed changes to the viaduct must be carefully evaluated and agreed upon by English Heritage.