If you correct a raised point, the elevation of that section gets changed to whatever is current for road drawing. Causing the need to delete that bridge section and redraw it. Actually, that elevation option is a little clunky. If you create a bridge, and later draw a road, the bridge height will still be active. At some point, could this revert to non-raised road?
B. On raised roads. The 180 degree (straight road) assumption that flat roads default to is not active. Drawing straight bridges is like free hand drawing because of this.