You can use FixMyStreet for reporting road issues, though the effectiveness of response varies greatly across different councils, and even different areas of the same council.
Anyone here cycle through Sundrive from Mount Jerome in Dublin? Well some genius repainted the cycle track yesterday. S/he has it going through the junction and into the pavement on the other side. Hard to explain but from this view, he has the cycle lane on the left heading half onto the path https://firstname.lastname@example.org,-6.2905781,3a,75y,230.74h,86.15t/data=!3m5!1e1!3m3!1siKKHc7gWTnOEaNRrPILHWg!2e0!6s%2F%2Fgeo2.ggpht.com%2Fcbk%3Fpanoid%3DiKKHc7gWTnOEaNRrPILHWg%26output%3Dthumbnail%26cb_client%3Dmaps_sv.tactile.gps%26thumb%3D2%26w%3D203%26h%3D100%26yaw%3D38.414276%26pitch%3D0%26thumbfov%3D100