Idiot-proofing low clearances with water curtain stop signs

Maybe the 11Foot8 bridge or the 10Foot6 bridge could invest in these nifty signs to stop inattentive drivers from using a bridge to give their trucks a moon roof.

This nifty invention was installed in the Sydney Harbor Tunnel after truckers repeatedly ignored other kinds of warning signs. Looks like a free car wash and roof mod for future idiots!

Amazing water curtain Stop sign (senbreaknews via dfaris)