From Tg Piandang on Route # A100. Turn left at T-junction to Parit Buntar/Bagan Serai. Take the bridge to Kuala Gula or road on the leftside of the bridge to Kuala Kurau

Like I said before, there are thousand and one ways to Kuala Gula (the inevitable 'Simpang Empat' again). This I presume is quite new as the authorities have yet to acertain a route number.

P.S. Click on the picture and you can see the 'new' bridge on the right side in the background.