Bridge deck drainage structure that escape canal and overpass retaining wall combine

The utility model provides a bridge deck drainage structure that escape canal and overpass retaining wall combine, including setting up the escape canal in the retaining wall side, the lower part in escape canal is equipped with the soil stack, and the soil stack passes through the elbow to be connected with the connecting pipe, the connecting pipe is through another elbow and horizontal union coupling, the top in escape canal is equipped with the grate, just the connecting pipe part imbeds in the retaining wall. Through the escape canal, collect the bridge floor rainwater, low reaches enter the low reaches water nearby through receiving well and rainwater pipeline. The utility model discloses effectual to have solved the low -lying highway section catchment volume of retaining wall big, and the unable problem of in time discharging of rainwater has avoided conventional bridge floor water -drain mast to expose outside simultaneously, receives external environment easily and corrodes, loses life and influences