This already dangerous curve on Zierdt Road is again developing deep shoulders at the white line. As stated in a previous post, this is a safety issue made worse as it is in the curve. School buses and other vehicles continue to cross over the center line into oncoming traffic for fear of running their outside wheels off the edge of the road. Repeatedly filling in the shoulder with gravel/rocks simply doesn't last. A permanent shoulder should to be installed on this heavily traveled road before a serious accident occurs.