Sponge city road

The utility model discloses a sponge city road, relates to the technical field of city roads, solves the problem that a drainage well of an existing sponge city road often flows backwards, and comprises a roadbed, a drainage well, a well lid, a drainage pipe, a limiting plate, a screw rod and a baffle plate. The top of the roadbed is sequentially connected with a surface layer, a water seepage layer, a flow guide layer, a reverse osmosis layer, a drainage layer and a water-resisting layer from top to bottom. Through the arrangement of the limiting plates, the handle, the screw rod and the baffle, when the drainage pipeline flows backwards due to large rainfall, the handle can be used for controlling the screw rod to rotate, the screw rod drives the baffle to ascend, and when the baffle makes contact with the bottom faces of the limiting plates, the baffle can shield the gap between the limiting plates, so that water cannot flow backwards into the drainage well; the problem of more serious surface ponding caus