That the shallow the entrance to a cave talking about the structure brae culvert and culvert design a culvert is a important component in bridge , gets big roles in the bridge in construction. Build middle, for striding over river especially in the highway , must build a few being able to stride over their building culvert right away. We talk about once brae culvert entrance to a cave design right away now , do not have bigger river of number because of Xinjiang, the river rate of flow not being very big , can pass the stability designing a culvert , ensuring road smoothness and roadbed therefore on a few county countryside highways. Brae culvert entrance to a cave facilities looks at landform geology and conditional diversity of hydrology having several kinds the following forms: 1) is upper