The Order will temporarily prohibit traffic on a length of the A470 trunk road near Moat Lane level crossing, Caersws and the A458 trunk road at Buttington level crossing.
Bydd y Gorchymyn yn gwahardd traffig dros dro ar ddarn o gefnffordd yr A470 ger groesfan reilffordd Moat Lane, Caersŵs a chefnffordd yr A458 wrth groesfan reilffordd Tal-y-bont.