This drawing is a cad design and construction drawing of a single bridge, tunnel and arch bridge repair project. The font, line type, scale and legend of this drawing conform to the drawing standard. The size of the sheet conforms to the standard. The content of the drawing is slightly appropriate, the layout is reasonable, the marking is clear, the drawing is compact, the appearance is good, the individual is consistent with the general layout, and the corresponding relationship between the horizontal, vertical and sectional details is accurate