The dbf in question is part of the hpms.shp
The error I receive when trying to import it into postgis (either via shp2pgsql or ogr2ogr) is an fread(782) error. Basically the size of the unzipped dbf file is a bit over 2gb, which is known limitation.
Anyone know how to get around the limitation?
I've contacted the BTS to let them know about this issue...