Abstract: The present invention specifically describes an expansion joint assembly for roadways, bridges, parking lot garages and the like which comprises: (a) a first road section terminating with a vertical face having a metal armor upper section and a concrete lower section; (b) a second road section contiguous to said first road section and having a vertical face which is directly opposite the vertical face of said first road section, said second road section vertical face also having a metal armor upper section and having a lower section; (c) a water deflector plate connected to the vertical face of either said first road section or said second road section, said deflector plate having a connecting surface which is anchored to said vertical face and having a deflecting surface which tapers outwardly and downwardly from said vertical face without contacting the other vertical face of said first and second road sections; (d) a water collector plate connected to the vertical face of the other of said first and second