Bottom grid barrier water taking dam structure

The utility model belongs to the technical field of engineering, and particularly relates to a bottom grid barrier water taking dam structure which comprises a bottom grid barrier dam, a water taking gallery is arranged in the bottom grid barrier dam, a water inlet barrier opening is formed in the upstream face side of the water taking gallery, an inverted filter layer is arranged at the position of the water inlet barrier opening, an inspection well is arranged at the position of a water outlet of the water taking gallery, and an inverted filter layer is arranged at the position of the inspection well. A sand flushing pipe is arranged in the inspection well; a water intake pump station is arranged at the downstream of the bottom grid dam, a water intake pipe is arranged at the water intake pump station, and the water intake pipe is communicated with the inspection well. According to the bottom grid barrier water taking dam structure, the water taking rate can be improved, the sediment content of a water sour