Road culvert structure

The utility model relates to the technical field of culvert construction, in particular to a road culvert structure which comprises a culvert, a first drainage groove is formed in one side, in the length direction of the culvert, of the bottom wall of the culvert, a first step is arranged on the other side of the bottom wall of the culvert, a second drainage groove is formed in the first step, and the second drainage groove communicates with the first drainage groove. First water filtering holes are formed in the top wall of the first step in an array mode. When rainwater or flood discharge and drainage exist, the rainwater enters the first drainage groove of the duct and flows into a drainage system of a municipal road from the first drainage groove, pedestrians pass through the first step, and when part of the rainwater surges on the top wall of the first step, the rainwater surging on the first step is drained into the second drainage groove through the first water filtering holes; the drainage performance