Should the reservoir be repaired first or later?

Build the road first. The reservoir is built first. Take Longjing Reservoir in Xinfeng County, Ganzhou City, Jiangxi Province as an example. The reservoir is an earth dam, which needs clay core wall, 5 kilometers away from the dam site. Therefore, transportation roads must be built to provide more convenience for the construction of reservoirs. When building a reservoir, we should consider the reservoir site, dam site and whether it is necessary to emigrate after building the reservoir, and try to choose a place with good geological conditions to avoid faults.