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.
Effaith y Gorchymyn fydd ymestyn y terfyn cyflymder 30 mya presennol ar gefnffordd yr A40 rhwng Cylchfan Salutation Square a Chylchfan Scotchwell 70 o fetrau pellach tua’r gogledd-ddwyrain.